AN EXPERlMENTAL 3mm OF THE EFFECTS OF A. PRESERWCE ELEMENTARY SCIENCE cuzzmcuwm , -. INNOVATION 0N SELECTED MEASURES OF TEACHER ‘ AND PUPIL PERFORMANCE ” Thesis for the Degree of .Ph. D‘- , MICHIGAN STATEUNI‘VERSWY HAROLD HENRY GRUNAU ' 191?. \, rib; lfl\lllllllLlllsllelllllllflllljflllllfllflflll :.-1*”'““‘fff'f”““‘“? This is to certify that the thesis entitled AN EXPERIMENTAL STUDY OF THE EFFECTS OF A PRESERVICE ELEMENTARY SCIENCE CURRICULUM INNOVATION ON SELECTED MEASURES OF TEACHER AND PUPIL PERFORMANCE presented by Harold Henry Grunau has been accepted towards fulfillment of the requirements for _Eh..D.._. degree in Jducation awm 51$: professor Date Zfi’fo CQj/¢7fl’ 0-7639 ABSTRACT AN EXPERIMENTAL STUDY OF THE EFFECTS OF A PRESERVICE ELEMENTARY SCIENCE CURRICULUM INNOVATION ON SELECTED MEASURES OF TEACHER AND PUPIL PERFORMANCE BY Harold Henry Grunau The purpose of this study was to compare the effective- ness of two instructional methods of preparing preservice ele- mentary teachers to teach selected processes of science to children. Another purpose was to compare the relationships of initial attitudes toward teaching science and science pro- cess skill competency to initial teaching behaviors. One instructional method was designed to improve the skills of observing, classifying, and inferring in the teach- ers. The other was designed to improve directly the teachers' ability to elicit observing, classifying, and inferring behavior in children by questioning. Measures of teacher attitude and behavior were assessed. Measures of pupil per- formance made for each teacher consisted of the means of pupil scores based on the extent to which lesson objectives were achieved by the pupils taught by a given teacher. Forty lower elementary preservice teachers were randomly assigned to one or the other of two instructional treatment types. Further division of the entire group into Harold Henry Grunau high and low initial process skill levels led to the 2x2 design used in the study. Prior to and after instructional treatment, teachers taught a science exercise to a small group of children. Measures of pre- and postinstructional attitude and of behav- ior during science teaching were made for all teachers. For a subset of sixteen teachers, pre— and postinstructional performance of pupils was also assessed. The results indicated that even prior to instruc- tional treatment, teachers performed a range of desirable behaviors including a high question complexity level, and that a teacher's knowledge of the processes of science has precedence over her attitude toward the teaching of science when relationships to desirable initial teaching behaviors are considered. There were no significant differences in the effects of the two instructional treatments. The results did indicate, however, that preservice teachers of high initial science process skill who had undergone one or the other of the instructional treatment types demonstrated teaching behaviors significantly different from those of low initial science process skill. The differences were due in large part to question complexity level, with higher initial science process skill levels associated with a higher final proportion of observing, classifying, and inferring ques— tions asked. No significant interactions were found. Finally, the Process Questioning Strategies instructional method by itself was effective in reducing the amount of Harold Henry Grunau teacher-controlled silence including demonstrating to pupils. The Process Skill deveIOpment instructional method by itself was effective in increasing the prOportion of time teachers devote to questioning and to allowing pupils to respond, and in reducing the prOportion of time devoted to direction giving by the teacher. Implications for educational practice were that: 1) Teachers of science should be provided with better equipment. 2) Prospective teachers should be selected in part on the basis of attitude related to teaching science and process skill ability. 3) Desirable inservice science teaching practices should be used as standards of preservice behavior. 4) Self-paced modular teacher education programs should be used to develop specific skills in teachers. 5) Pupil performance measures should be among those used to assess the effectiveness of teacher preparation programs. Recommendations for future research were that: l) attitude as it relates to teachers of science be further clarified. 2) data available from the study be further analyzed to determine more patterns of influence. 3) inquiry behavior patterns be examined in intact classrooms. Harold Henry Grunau 4) research be conducted to determine when direction- giving in science classes is perceived as restrictive, and when not. 5) a replication of the study, with modifications, be conducted. 6) applications of cognitive balance theory be used in preservice instructional programs. AN EXPERIMENTAL STUDY OF THE EFFECTS OF A PRESERVICE ELEMENTARY SCIENCE CURRICULUM INNOVATION ON SELECTED MEASURES OF TEACHER AND PUPIL PERFORMANCE BY Harold Henry Grunau A THESIS Submitted to Michigan State University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Department of Secondary Education and Curriculum 1972 49) fl /T’~ ACKNOWLEDGMENTS I p Those who contributed to the completion of this study will long be remembered. Margie, Elaine, and more recently Sonia, often had to come last. We know. No more. Dr. Julian R. Brandou, chairman of the guidance committee, gave unfailingly of himself with encouragement, counsel, and guidance throughout the long road to completion of the entire doctoral program. My sincere thanks. Dr. Erwin P. Bettinghaus, in the capacity of advisor and committee member, gave generously of his time and insight. Drs. Glenn D. Berkheimer and Richard L. Featherstone, guidance committee members, were extremely helpful, particu- larly in the final stages of thesis preparation. Colleagues and friends, not only in Michigan but in points as distant as Manitoba and Texas, played their parts, as they well know. Finally, to the students and cooperating teachers and the school officials and eager youngsters who partici- pated in the teaching phases of the study--thank you. ii TABLE OF CONTENTS LIST OF TABLES . . . . . . . . . . LIST OF FIGURES. . . . . . . . . . LIST OF APPENDICES . . . . . . . . Chapter I. II. III. INTRODUCTION . . . . . . . Purpose. . . . . . . . . Objectives and Questions Need for the Study . . . Definition of Terms. . . Assumptions. . . . . . . Limitations. . . . . . . Treatment of the Problem Organization of the Thesis REVIEW OF THE RELATED LITERATURE Overview of the Related Literature . . . Elementary Science Teacher Objectives and Characteristics. . Role of the Teacher. . . Selected Characteristics of Teachers . Summary of the Review of the Literature DESIGN OF THE STUDY. . . . Selection and Description of the Description of the Treatments. Description of Instruments Experimental Design. . . Procedures of the Investigation. Analysis of the Data . . Hypotheses . . . . . . . smary O O O O O O O O 0 iii Sample. Page vii viii H 18 23 51 56 56 61 64 74 75 80 82 84 Chapter 1 Page V. SUMMARY AND CONCLUSIONS. . . . . . . . . . . . 126 Summary. . . . . . . . . . . . . . . . . . . 126 Conclusions. . . . . . . . . . . . . . . . . 129 Discussion . . . . . . . . . . . . . . . . . 132 Implications for Educational Practice. . . . 137 Recommendations for Future Research. . . . . 139 BIBLIOGRAPHY O O O O O O O O O O O O O O O O O O O O O 142 APPENDICES O O O O O O I O O O O O O O O O O O O O O O 15]- iv Table 1. 10. LIST OF TABLES Means and Standard Deviations of Entering Characteristics of Teachers . . . . . . . . Relationship Between Two Entering Characteristics and Initial Teaching Behaviors. . . . . . . . . . . . . Means and Standard Deviations of the Pretest Scores Used in the Several Analyses of Hypotheses. . . . . . . . . . . Means and Standard Deviations of the Posttest Teacher Characteristics for the Two Methods of Instruction. . . . . . . Comparison of Instructional Type (Process Skills Versus Instructional Strategies) for Teacher Attitudes and Behaviors . . . . Comparison of Initial Process Skill Levels (High and Low) for Teacher Attitudes and Behaviors . . . . . . . . . . . .’. . . Comparison of Interaction Effect Between Instructional Type (Process Skills Versus Process Questioning Strategies) and Initial Process Skill Level (High and Low). . . . . Multivariate and Univariate Analysis of Covariance Showing Effects of Initial Attitude Toward Teaching Science Levels (High and Low) for Teacher Attitudes and Behaviors . . . . . . . . . . . . . . . Mean Pretest and Posttest Scores and Associated T-Values of Pre- and Post- Instructional Comparisons for Four Dependent Variables . . . . . . . . . . . . Mean Pretest and Posttest Percent of Behaviors and Associated T-Values of Comparisons for Thirteen Categories of the I.A.S.T. . . . . . . . . . . . . . . . Page 89 90 92 93 96 98 103 106 108 109 Table 11. 12. 13. 14. 15. 16. Mean Pre- and Post Per Cent of Behaviors for Each Instructional Treatment Type and Associated P—Values of Pre— to Post— Comparisons for Thirteen Categories of the I.A.S.T. . . . . . . . . . . . . . . Table of Individual Pretreatment Pupil Competency Measure Scores and Mean Pupil Performance Scores for Each Teacher With Cell Means and Compositions . . . . . . . . Table of Individual Posttreatment Pupil Competency Measure Scores and Mean Pupil Performance Scores for Each Teacher With Cell Means and Compositions . . . . . . . . Comparison of Effect of Instructional Type, Level of Initial Process Skill, and Interaction Effect of Treatment by Level on Pupil Performance. . . . . . . . . . . . Multivariate Analysis of Covariance Showing Effects of Initial Attitude Toward Teaching Science on Six Dependent Variables, Including Pupil Performance . . . . . . . . Mean Scores of Pupil Performance for Pre- and Postinstructional Teaching. . . . . . . vi Page 112 116 117 118 119 122 LIST OF FIGURES Figure Page 1. Selection and Assignment of Teachers to Instructional Method and Pupil Groups. . . . . . . . . . . . . . . . . 60 2. Overview of Type and Time of Measures Used. . . 64 3. Design of the Study . . . . . . . . . . . . . . 75 4. Cell Compositions Illustrating Total Number of Teacher Subjects Per Cell of the 2x2 Fixed Effects Design . . . . . . . 87 5. Regrouping of Hypotheses. . . . . . . . . . . . 9S 6. Pre- and Postinstruction Means for Measures of Teacher Behavior for Three Variables Measured From Teachers of High and Low Initial Process Levels. . . . . . . . . . . . lOl vii Appendix A. B. LIST OF APPENDICES SCIENCE PROCESS TEST FOR ELEMENTARY SCHOOL TEACHERS (3rd Revised Edition). . . "SCIENCE PROCESS TEST FOR ELEMENTARY SCHOOL TEACHERS" DATA FOR TWO GROUPS OF MANITOBA TEACHERS . . . . . . . . . . . LIST OF SCHOOLS USED IN THE STUDY WITH SOME CHARACTERISTICS. . . . . . . . . ATTITUDE TOWARD TEACHING SCIENCE INSTRUMENTS (FORMS A AND B) WITH SCALE VALUES FOR SCORING . . . . . . . . . ATTITUDE TOWARD DIFFERENT METHODS OF TEACHING SCIENCE INSTRUMENT SCORING PROCEDURE FOR ATTITUDE TOWARD DIFFERENT METHODS OF TEACHING SCIENCE INSTRUMENT o o o o o o o o o o I O I 0 O O INSTRUMENT FOR THE ANALYSIS OF SCIENCE TEACHING (I.A.S.T.) BASE SCALE GROUND RULES FOR THE USE OF THE INSTRUMENT FOR THE ANALYSIS OF SCIENCE TEACHING . . . TABLE OF RELIABILITY ESTIMATES FOR USE OF INSTRUMENT FOR THE ANALYSIS OF SCIENCE TEACHING O O O O O O O O O O O O O O O O 0 SCIENCE TEACHING OBSERVATIONAL INSTRUMENT. TABLE OF INTRA-OBSERVER RELIABILITY ESTIMATES OF THE S.T.O.I. . . . . . . . . TABLE OF SCORES FOR TWO OBSERVERS AND INTEROBSERVER PERCENT OF AGREEMENT FOR SCORING PUPIL COMPETENCY MEASURE, INFERRING 5, PART D, SCIENCE--A PROCESS APPROACH . . . . . . . . . . . . . . . . . viii Page 152 167 169 171 178 185 189 191 193 195 Appendix K. Page LETTER TO PRINCIPALS AND TEACHERS DESCRIBING SCHEDULE NEEDS AND LESSON MATERIALS OF THE STUDY. . . . . . . . . 197 CORRELATION MATRIX OF TEACHER CHARACTERISTICS (4O SUBJECTS). . . . . . . . . 199 PRE- AND POST- INSTRUCTIONAL CORRELATIONS OF PUPIL PERFORMANCE WITH OTHER VARIABLES (l6 SUBJECTS) . . . . . . 203 ix CHAPTER I INTRODUCTION Purpose The purpose of this investigation was to compare the effectiveness of two instructional methods of preparing pre- service elementary teachers to teach selected processes of science to children. To achieve this purpose, entering characteristics including teaching behaviors of a sample of elementary science methods course candidates were first exam- ined. The relation between levels of attainment of two characteristics of teachers—~initial attitude toward teaching science and initial process skill-—were assessed in relation to the teaching behaviors. The investigation next compared an instructional method designed to improve the observing, classifying, and inferring skills held by teachers with one designed to improve directly the teacher's ability to elicit observing, classify- ing, and inferring process skills in children through question- ing. Comparisons were made both within and outside the context of teaching children, and included measures of teacher atti- tude, teacher behavior, and, for a subset of the pOpulation, measures of pupil performance. The effect of initial process skill level on postinstructional teacher characteristics and 1 a determination of whether or not the two instructional meth- ods were differentially effective according to level of initial process skill were assessed. Changes in teacher character- istics which resulted over the entire group, within each instructional method group and within each level of initial level of process skill, were also assessed. Objectives and Questions The following questions reflected the major objec— tives of the study: 1. What were the entering characteristics of teachers when measured as listed and operationalized below? a) Attitude toward teaching science (A.T.S.)-vas measured by Millar's Attitude Toward Any Occupations Scale (A.T.A.O.), modified to assess attitudes toward the occupation of "teaching science." b) Behaviors exhibited during science teachingv—as meas— ured by the several categories of Hall's Instrument for the Analysis of Science Teaching base scale (I.A.S.T.), including the derived ratios of indirect to direct behavior (I.D.) and student talk to teaching talk (S.T.); and also questioning types (Q.T.) of behaviors exhibited during science teaching--as determined from the percen- tage of total questions categorized by Fischler and Anastasiow's Science Teaching Observation Instrument (S.T.O.I.), which relate to making observations, inferring, and testing inferences (categories 3, 4, and 5 of the S.T.O.I.). 2. What were the relationships between a) Initial attitude toward teaching science (A.T.S.) and b) Knowledge of processes of science as measured by Sweetser's Elementary School Teacher's Science Process Test (S.P.T.) and: the initial teaching behaviors of the preservice teachers as measured in question lb during science teaching with pupils but before the commencement of science methods course instruction? 3. What was the relationship between the use of a process skills or a process questioning strategies instructional method and a) Teacher attitudes-—as measured by attitude toward teaching science (A.T.S.) and also attitude toward different methods of teaching science (A.T.D.M.T.S.)-- the latter as measured by Pickering's Attitude Toward Different Methods of Teaching Science scale; and b) Teaching behaviors--as measured by question types (Q.T.), indirect to direct teaching behavior ratio (I.D.), and the student talk to teacher talk ratio (S.T.) . Based on the characteristics listed in questions 3a and 3b, what were the effects of instruction on different initial process skill levels of teachers, and were the two instructional methods differentially effective for different initial process skill levels held by teachers? Was there evidence of change in teacher attitude (A.T.S.) or teacher behavior (Q.T., I.D., S.T.) after science methods instruction? What was the relationship between the use of a process skills or a process questioning strategies instructional method and pupil performance (P.P.)--as measured by mean scores determined for each teacher from individual Pupil Competency Measure (P.C.M.) scores achieved by her pupils? Considering pupil performance, what were the effects of instruction on different initial process skill levels of teachers, and were the preservice instructional methods differentially effective for different teacher initial process skill levels? Was there evidence of change in pupil performance after science methods instruction? Of particular importance in this study was the problem of adequately controlling a variety of possible confounding variables. In that way the effects of the two instructional methods taught in the college setting were carefully traced to their effects on the attitudes and teaching behaviors of the prospective elementary teachers. For a subset of the sample of teachers, performance of pupils taught by the teachers was also measured. While there were no additional questions to ask in relation to this problem of design, the the general efficacy of the technique was carefully considered and will be further discussed elsewhere in the thesis. Need for the Study During the decade of the sixties, an impressive array of elementary science curriculum materials was produced, all of which offer partial solutions to the general problem of providing effective alternatives in science education for children. With the availability of these new curricula, however, concern shifted to another aspect of the educational process. Peter Gega pointed to this new problem as he dis-1 cussed the elementary classroom generalist: How can we improve the preservice preparation of these peOple? What specific experiences will pre- pare them to guide children in ways that reflect the spirit of modern science? With few exceptions, those who have attempted to answer Gega's questions have referred to the provision of experiences in develOping process or inquiry skills. Curtis, for example, has written of the need for "teacher-training for process- oriented instruction."2 He further observed that the problem of training teachers for a role in elementary science where process skill teaching is a major goal "seems never to have been attacked." 1Peter C. Gega, "The Pre-Service Education of Elemen- tary Teachers in Science and the Teaching of Science," School Science and Mathematics, LXVIII (January, 1968), 11-20. 2William C. Curtis, "Teacher-Training for Process Oriented Science Instruction," Science Education, LI, 5 (December, 1967), 494-498. 3Ibid., p. 494. While the need for teachers with more and better process or inquiry skills has been championed by many workers, others have voiced similar concerns about the teacher's abil- ity to apply such skills. Hurd and Gallagher, for example, observed that the challenge facing curriculum developers in science is not only how to get teachers to employ an inquir- ing teaching style, but how to help teachers learn to elicit the inquiring behavior from children, which the new curricula were designed to elicit.1 Esler, in a later review, sug- gested that teachers may understand neither the process skills themselves, nor the inquiry style of teaching that seems to be associated with the develOpment of these skills in children.2 The design of the study was consistent with that recommended throughout the literature as worthy of careful study. The literature contains considerable reference to the complexity of the teacher-learner interaction in its class- room context. Further, it calls for specific tests of prep- aratory programs and their effects, tests which control for extraneous sources of variation to the extent possible. The effects of teacher preparation of pupils, however, have seldom been directly tested. Difficulties in selecting lPaul DeHart Hurd and James Gallagher, New Directions in Elementary School Science Teaching (Belmont, CaIifornia: Wadsworth Publishing Company, 1968). 2William K. Esler, "Structuring Inquiry for Classroom Use," School Science and Mathematics, LXX, 5 (May, 1970), 454. appropriate teacher and pupil objectives, followed by further difficulties in measuring the learning outcOmes, are largely responsible for such neglect. Blosser and Howe, in their review of research on preservice science education, are among many, however, who advocate such study: More research needs to be done in science education at the elementary level to show the relationship between preparatory programs and product outcomes. . . . Research should be done to determine the degree to which prospective elementary teachers are being pre- pared to make effective use of the new elementary science projects. . . . Areas for study should includ those concerning the content and experiences to be provided in the elemen- tary programme, and the relationship of these pro- grammes to the classroom setting. ' In this study, difficuIties were 5:3..nt tenths extent that it was possible to gather data regarding pupil performance for only a subset of sixteen of the entire sample of forty teachers in the study. Nevertheless, the need to assess pupil outcomes in relation to preparatory programs was met to that extent. Some interested groups have already produced modules for use in elementary science teacher preparation. There is a need to test and report the effects of these modules in a variety of settings in order to assess their broad applica- bility. Finally, Canada, the site of the proposed research, has goals and objectives completely compatible with any in 1Particia E. Blosser and Robert W. Howe, "An Analy- sis of Research on Elementary Teacher Education Related to the Teaching of Science," Science and Children, January/ February, 1969, pp. 58-59. this study. Yet Canadian research efforts in the area of preservice elementary science teacher preparation have been few, and no Canadian research has been reported which addressed itself to specific questions such as are raised in this study. In the province of Manitoba, Canada, a four- year integrated elementary teacher education program is cur— rently being develOped and is soon to be introduced for the first time. Answers to research questions such as proposed can make a distinct contribution to such a program. Definition of Terms The following are definitions of terms as they were used in this study. Initial Process Level, as used in this study, refers to one or the other of two groupings based on scores which teachers achieved on Sweetser's Science Process Test for Elementary School Teachers (Appendix A) prior to instruc- tional treatment. Score ranges and corresponding classifica— tions were: Range 40-19 = High Initial Process Level (I.P.L.); 18-0 = Low I.P.L. Process Skills Method, for purposes of this study, was that mode of instruction in science processes which con- sists of modules number 1, 5, 10, and 11 contained in the report: "Self-Paced Instruction--A Preliminary Report."1 1David P. Butts, "Self-Paced Instruction--A Prelim- inary Report," (Austin, Texas: Science Education Center and The University Research and DevelOpment Center for Teacher Education, The University of Texas, 1970). Process Questioning Strategies Method, for purposes of this study, was that mode of instruction according to "Elementary Teacher Performance Tasks: Supervision Module," specifically eliciting observations, eliciting classifica- tions, and eliciting inferences.l A Teacher is an undergraduate student enrolled in a lower elementary (K-3) general education course at Faculty of Education, University of Manitoba. ILD; represents the ratio of indirect to direct teacher behaviors exhibited during teaching, and is calcu- lated by dividing the total frequencies of occurrence of categories 1 through 4 on Hall's Instrument for the Analysis of Science Teaching (I.A.S.T.) by the total frequencies of categories 5 through 8 on the same scale. SL2; represents the ratio of student talk to teacher talk behaviors exhibited during teaching, and is calculated by dividing the total frequencies of occurrence of categories 9 and 10 on Hall’s Instrument for the Analysis of Science Teaching (I.A.S.T.) by the total frequencies of categories 1 through 7 on the same scale. Microteaching, for purposes of this study, was teach- ing within an arrangement of teacher and pupils such that one teacher taught a group of three to seven pupils using one set of laboratory materials for the group. 1John J. Koran, Jr., and Joan Judge, "Elementary School Teacher Performance Tasks: Supervision Module" (Austin, Texas: Research and DevelOpment Center for Teaching, The University of Texas, 1969). 10 Assumptions Several basic assumptions were made in view of the nature of the study, the procedures, and the instruments used. 1. Paper and pencil inventories of the type used in this study can be used to make valid assessments of attitudes and initial process skills of beginning teachers. The modular treatments and the treatment procedures used were sufficiently self—directed so that producing signifi— cant differences between treatment groups due to differ- ences in the instructor variable were avoided. Pupils used in the study were uniformly exposed to the activities and materials of the Science--A Process Approach (S.--A.P.A.) exercise "Inferring 4," normally preceding that taught by the teachers involved in the study. The methods of assigning teachers to schools, to pupils, and to teaching schedules would not, of themselves, affect the outcomes of the study. The student teachers participating in this study were not significantly different from others not included in the study who have elected the lower elementary (K-3) teacher preparation course at University of Manitoba. Important teacher behaviors are observable, and these observable behaviors may be described through the use of objective rating procedures and trained observers. 11 7. A suitable goal for an elementary science methods course is to prepare teachers to teach effectively to a small group of elementary school pupils. Limitations A number of important limitations to the study follow. 1. The study was limited in that only female subjects who had elected a lower elementary teaching preference (K-3) participated. Although there are several attitudes and teaching beha— viors that relate to the effects of the two treatments, this study was limited in that it considered only atti— tude toward teaching science, attitude toward different methods of teaching science, and verbal behaviors as measured by the content analysis and the interaction analysis methods described. The subset of the sample on which data regarding pupil performance were gathered represented only 40 per cent of the entire sample and the subset was treated separately in the analysis in regard to pupil performance. The experimental treatments were each limited to a total of six hours of instructional time and to the modules selected for use during this time. The teaching behaviors of the subjects were demonstrated in the context of only one exercise which had been expressly selected for the study. 12 6. The study was conducted using a group of preservice teachers in Winnipeg, Manitoba. Generality of results was thus limited. 7. It was possible to measure the student teaching behavior and effectiveness phases of this study only in a miCro- teaching context and not in entire, intact classes. Treatment of the Problem This study was designed to determine the relative effectiveness of two methods of teaching one portion of an elementary science methods course. Forty teachers regularly enrolled in and randomly selected from the membership of two science methods classes totaling fifty—two teachers at University of Manitoba winter term, 1971, were randomly assigned to one or the other of two treatment groups, either a process skills group or a process questioning strategies group. After completing tests to measure attitude toward teaching science and initial process skills, teachers were each assigned to micro-teach a selected exercise to a small group of third grade Metropol- itan Winnipeg school children in one of seven schools par- ticipating in the study. Audio—tapes of the teaching behaviors were made with portable recorders. For a subset of sixteen teachers in two schools, scores achieved by the pupils taught by each teacher were also assessed. On returning to their regular class meetings, teach- ers received the instructional treatment to which they had 13 been assigned. Each instructional treatment was of six hours duration. Teachers next completed two instruments to measure their attitudes, specifically attitude toward teach— ing science and second, attitude toward different methods of teaching science. They were next rescheduled to teach and subsequently taught another small group of third grade chil— dren an exercise identical to the one which they had pre— viously taught. Audio-tape records were again made. For the subset of sixteen teachers already mentioned, scores achieved by their pupils were assessed as before. The remaining data were gathered from the audio—tapes using several techniques of audio-tape analysis. Written transcripts of the questions asked by teachers were made to aid in the audio-tape analysis of teacher question types. The instruments and techniques for these procedures are des- cribed elsewhere in the thesis. Data resulting from the interaction analysis observations of each teacher were sub- mitted for computer analysis to determine the percentage of class time devoted to each of the several behaviors assessed by the instrument. Ratios of combinations of beha— viors were also calculated and these, as variables, were later used in the testing of hypotheses. A correlation matrix was constructed and included all of the independent and dependent variables used in the study. It also included values for the individual subscores from the I.A.S.T.; that is, the percentages of each of fourteen categories of behavior which teachers used in their initial 14 and final teaching of pupils. The relationship of initial process skill and initial attitudes toward teaching science to initial teaching behaviors, as well as other relation- ships of interest, were determined from the results of the correlation matrix. Hypotheses pertaining to the effect of instructional treatment type, effect of instructional treatment of initial process level,and differential effect of treatment on level were tested. Separate two—way multivariate analyses of covariance were used to test hypotheses associated with atti- tudes of teachers (two variables) and teaching behaviors (three variables). For the subset of sixteen teachers a single two-way univariate analysis of covariance was used to test hypotheses associated with pupil performance as a result of instructional treatment and teaching. In all analysis of covariance tests, scores on available preinstructional treat— ment tests were used as the covariates. The extent of changes in attitude and behavior within groups was determined by performing t-tests of differences between the means for measures of activity before and after instructional treatment. A similar test was performed on the measure of pupil performance, before and after instructional treatment, for the sixteen teachers in the subset of the entire sample. 15 Organization of the Thesis Presented in Chapter I was the statement of the pur- pose of the study. Objectives and questions to be answered followed, along with a delineation of the need for the study. Definitions of terms, assumptions, and limitations, as well as a description of the overall treatment of the problem, were presented. Chapter II includes an overview, a review of the literature related to the development of the problem, and a summary of the literature pertinent to the study. In Chapter III the overall methods of the study are examined in detail. Specifically, the selection and des- cription of the sample, description of the several treat- ments and instruments, the research design, and the proce— dures of the investigation are presented, as well as the methods for analysis of the data and the research hypotheses. The analysis of the data and the findings based on this analysis are reported in Chapter IV. Finally, Chapter V contains a summary of the findings, conclusions from the study, a discussion of implications for educational practice, and recommendations for future research. CHAPTER II REVIEW OF THE RELATED LITERATURE Overview of the Related Literature A beginning point in the present study and consequently in the review of the literature was an attempt to establish the importance of science process objectives for pupils in the science curricula of the schools. Objectives such as learning to observe, classify, and infer were found to be among the many science process objectives worthy of study by pupils. These three objectives served as the target to which questions regarding the nature of specific elements of teacher preparatory programs could be directed. The literature reviewed considered two approaches to the preparation of teachers for such process-oriented instruction. One of these consisted of improving in the teacher the cognitive skills of observing, classifying, and inferring in order that she might better understand and use them and hopefully find a suitable way to teach the skills to children if called upon to do so. The other approach centered on the need to practice and develop specific behavioral skills, in this case the skill of elicit- ing observing, classifying, and inferring behavior in children through the use of questions. While each approach was shown to have merit, and some results of the use of each were 16 17 documented, the literature did not reveal sufficient evidence to suggest the efficacy of one approach over the other. Self-paced instructional materials in module form were sub— sequently located and reviewed. This study tested several effects of the two instructional approaches to preparing teachers to teach observing, classifying, and observing through the use of appropriate self-paced modules. Some problems of experimental design which occurred in previous research were noted, and suggestions for improving the design of this study were made. Several important teacher characteristics were next identified. One goal of teacher education was reported to be satisfactory pupil performance on suitably selected objectives. The literature also suggested several intermediate goals which appeared worthy of investigation. For example, certain teacher training procedures may result in desirable attitude changes which precede selected behavior changes. The review, accordingly, included reference to the nature and measurement of attitudes generally, as well as to specific studies asso- ciated with teacher attitudes toward elementary science and its teaching. Another intermediate goal, which may be closer to the ultimate criterion of modified pupil behavior, was apprOpriate teacher behavior. The literature revealed sev- eral theoretic bases from which such behavior could be exam- ined. Studies based on a model of teaching viewed as a sequence of logical operations,and dependent on verbal actions such as questioning behavior, were reviewed and found 18 to be useful for purposes of this study. Another model analyzed verbal behaviors exhibited during teacher-pupil interactions. This model attempted to interpret teaching behaviors in terms of psychological variables with conse- quent effects described in terms of "classroom climate" or "emotional control." The literature was examined to find the results and significance of studies which viewed teach- ing in this way. Finally, the measurement of effects on pupils when process teaching was the goal were reviewed and reported. A summary of the most important findings and those particularly germane to the purposes of the study completed the review. Elementary Science Teacher Objectives and Characteristics Science Objectives for Pupils Any pragmatic discussion regarding the nature of pro- fessional courses for teachers must inevitably begin with a consideration of goals and objectives for pupils in schools. Important present—day elementary science objectives have been traced to the time of Dewey some years ago.1 John Dewey's contributions were numerous, but perhaps the most significant for the developing field of elementary science was his con- tention that the methodology of science was at least equal to 1J. F. Newport, "Are Science Objectives Changing?" School Science and Mathematics, LXV (April, 1965), 359-362. 19 and perhaps of even greater significance than the actual knowledge accumulated: "The present emphasis in science as inquiry would seem to be a reaffirmation of a position which Dewey took nearly half a century ago."1 Newport compared recognized elementary science objec- tives from the 1927-1957 period with those based on 1957- 1964. He concluded that there was no evidence that a change in objectives had occurred, suggesting instead that "rever- berations from the Space Age" may have been responsible more for the development of new science curriculum materials than for a change in objectives.2 While Newport's basic view has not been seriously challenged, more recently there has been a growing emphasis on inquiry in science education. At any rate, one of the major goals for elementary school pupils in the 70's, gen- erally described, is the development of some skill in the use of the methods and processes of science.3 Modern science curricula tend to reflect this same goal: "All of the major elementary science programs extant today were designed to 1Herbert A. Smith, "Educational Research Related to Science Instruction for the Elementary and Junior High School: A Review and Commentary," Journal of Research in Science Teaching, I, 3 (1963), 202. 2NeWport, op. cit., pp. 359-362. 3Willard J. Jacobson, The New Elementary School Science (New York: Van Nostrand Reinhold Company, 1970). p. 15. 20 provoke children to inquire about relationships among natural phenomena."1 According to Matthews, the fundamental assumption underlying such modern objectives and curricula is that learn- ing how to learn is of major importance to the elementary school child and can be facilitated by school experiences.2 Renner and Ragan added that science is a natural vehicle to develop these rational powers and repeated that the first objective of elementary school science should be "to begin to develop in the learner the ability to think and inquire."3 While there is as yet no general agreement regarding a concise definition of "inquiry," the prevalence of inquiry- related objectives at virtually all levels of education in recent years suggests the need for such careful definition. Pickering concluded that the term is frequently used to mean a "process of investigation which generally uses an inductive approach."4 "Inquiry" has also been used interchangeably lMary Budd Rowe, "Wait-Time and Rewards as Instruc- tional Variables: Their Influence on Language, Logic, and Fate Control" (Paper presented at the National Association for Research in Science Teaching meeting in Chicago, April, 1972), p. 1. 2Charles C. Matthews, "Structuring Scientific Knowledge by the Elementary Child" (Paper presented at the National Asso- ciation of Science Teachers, Cincinnati, Ohio, March, 1970). 3John W. Renner and William B. Ragan, Teaching Science in the Elementary School (New York: Harper andIRow, 1968), p. 54. 4Robert S. Pickering, "An Experimental Study of the Effects of Inquiry Experiences on the Attitudes and Compe- tencies of Propsective Elementary Teachers in the Area of Science" (unpublished Ph.D. dissertation, Michigan State University, 1970). 21 with a number of other terms, including "scientific method," "problem-solving," "heuristics," "inductive method," and "discovery."1 One important dimension to inquiry remains to be dis- cussed. Briefly, it concerns the complexity of the inquiry process and the View that it is necessary to master such a complex skill in stages. In pointing out the learning requirements of inquiry, Gagné specified several rather dis- tinct capabilities which persons need to master to achieve later success in the complex process of inquiry. In refer- ring to the most basic of skills, performance capabilities, or competencies upon which he saw the remainder of the com- plex process of inquiry to be based, Gagné said: No one seems to have adequately faced up to the neces- sity for identifying and describing these fundamental competencies which underly all learning about science. A good list would include not only number computation but also spacial and manipulative skills, and the capa- bilities of observing, classifying, measuring, describ- ing, inferring and model conceptualizing. In Gagné's view, the problem of designing an elementary cur- riculum for the early grades is one of insuring that these kinds of skills are well-learned, so that they may form the basis for the later mastery of science as a discipline. Hurd and Gallagher stated that "if children learn to use the lIbid. 2Robert M. Gagné, "The Learning Requirements for Enquiry," Journal of Research in Science Teaching, I (1963), 144-153. 22 processes of science, they will come closer to understanding the spirit of inquiry that characterizes science."1 The three major elementary science curriculum pro- jects, developed largely during the 1960's, differ only a little in the extent to which they purport to teach the processes of science. The Science Curriculum Improvement Study (S.C.I.S.) methods and materials provide, for example, for children to have an abundance of experiences to help them develop science process skills as they work toward the over- all objective of achieving "scientific literacy." Examination of the various curriculum materials of the S.C.I.S. reveals that observing, classifying, inferring, measuring, predicting, controlling variables, interpreting data, and experimenting are among the processes that should be encountered by children in the various units. These processes are encountered during lessons which may consist of a rather loosely structured "exploration" phase and also during the somewhat more struc— tured "invention" and "discovery" phases.2 The developers of another curriculum, the Elementary Science Study (E.S.S.), produced units relating to a variety of science topics. Pupil activities in this curriculum consist of somewhat freely manipulating and exploring materials, during which science processes and concepts are used and further lHurd and Gallagher, 0p. cit., p. 7. 2Robert Karplus and Herbert D. Thier, A New Look at Elementary School Science (Chicago: Rand McNally and Com- pany, 1967). 23 develOped.l The curricular experiences in Science--A Process Approach (S.—-A.P.A.), on the other hand, fit more closely Gagne's learning requirements of inquiry. Consequently, the objectives for that curriculum relate almost entirely to activities designed to teach the basis skills, compe- tencies, or processes as described in part by Gagné earlier in this chapter. Clearly, the process skills are sufficiently important elementary school science objectives to be considered in terms of their implications for the preservice preparation of teach- ers. Those implications will be considered in the next sec- tion of this chapter. Role of the Teacher While process skill objectives have been readily established as among the most important in the elementary school science curriculum, the skills required of preservice teachers to achieve those objectives are less easily defined. In a general treatise on the Science Methods Course and teacher preparation, Ballou suggested that the skills and competencies that a teacher must acquire to do a qualitative job in modern science teaching are overwhelming.2 Other 1Robert E. Rogers and Alan M. Voelker, "Programs for Improving Science Instruction in the Elementary School: Part I, E.S.S.," Science and Children, VII, 5 (January/ February, 1970), 35—43. 2Mildred T. Ballou, "Science Methods Courses for Elementary Teachers," Science and Children, VII, 1 (September, 1969), 7-9. 24 writers have reported that teachers encountering the new ele— mentary curricula with their process—related objectives either fail to understand or are unable to use prOperly the methods which would best elicit the desired behaviors in children.1 The difficulties seem to lie in two broad areas of weakness on the part of teachers: 1. A lack of knowledge and skill regarding the inquiry process and the component process skills upon which inquiry is based; and 2. A lack of ability to perform the complex teaching behaviors that are required to properly teach for process-related objectives. Of the first area, the American Association for the Advancement of Science (A.A.A.S.), in a preliminary report on Preservice Science Education of Elementary School Teachers, said: "The science experiences for elementary teachers should develop competence in the processes used in science as part of systematic rational inquiry."2 Earlier, the National Asso- ciation of State Directors of Teacher Education and Certifi- cation and the American Association for the Advancement of lEugene C. Lee, New DeveIOpments in Science Teaching (Belmont, California: Wadsworth Publishing Co., 1967), p. 42. John J. Koran, Jr., "Two Paradigms for the Training of Science Teachers Using Videotape Technology and Simulated Conditions," Journal of Research in Science Teaching, VI, 1 (1969), 22-28. Esler, op. cit., Chapter I. 2"Preservice Science Education of Elementary School 'Teachers," AAAS Miscellaneous Publication 69-11 (February, 1969) I p. 140 25 Science (N.A.S.D.T.E.C.--A.A.A.S.) guidelines of 1963 had advocated similar experiences. They suggested that college study for prospective elementary teachers include a wide variety of techniques and materials which lend themselves to the development of the (inquiry) skills.l Hurd and Gallagher expressed the widely held sentiment of science educators who are active in the field: The processes of scientific inquiry should be an integral part of the instruction. It is only reasonable to expect that, if elementary teachers are to emphasize in their teaching such knowledge skills as observing, measuring, formulating hypotheses and using numbers, the meaning and significance of these must be a part of their own college education. The teachers will also need to know how these skills are related to the basic concepts of science. While such a review of the literature revealed con- siderable support for emphasizing process skills in an ele- mentary methods course, Rowe disagreed with the argument that lack of knowledge of skills is the greatest inhibitor to effective modern elementary science teaching.3 She compared the instruction of children as carried out by a total of fifty-four scientists and science educators with instruction as conducted by a sample of classroom teachers. The patterns of questions and responses were remarkably alike for the two groups, although actual pupil outcomes were not measured. 1"Guidelines for Science and Mathematics in the Preparation Program of Elementary School Teachers," AAAS Publication No. 63-7 (1963), pp. 1-15. 2Hurd and Gallagher, 0p. cit., p. 129. 3 . Rowe, op. Cit. 26 Nevertheless, the development of a teacher's science process skills was one of the most frequent suggestions made for the preservice experiences of those preparing to teach modern elementary science to children. Consequently, an instruc- tional method designed to teach such skills was included as one instructional type compared in this study. A more detailed description of the method is provided in another chapter. The second major area of weakness identified earlier-- an inability to master apprOpriate teaching behaviors--has led to questions typified by these which resulted from a group led by Buell: 1. Does inquiry teaching consist of isolable behaviors which can be identified and for which prospective teachers can be trained? How can this training be be accomplished? 2. Can teacher behaviors be identified that are related to student success in inquiry?l Gage would be pessimistic, suggesting that "teaching is multi- dimensional and that it is naive to assume that we can find some general attribute of teacher behavior that will account for a significant portion [of subsequent] pupil behaviors."2 Ballou, on the other hand, suggested that the behaviors of the best teachers in action should be recorded, as well as Robert Buell, "A Research Training Project in Science Education" (Final Report Sponsored by The National Association for Research in Science Teaching, November, 1969, Project # 9-0172): p. 12. 2N. L. Gage, ed., Handbook of Research on Teaching (Chicago: Rand McNally and Company, 1963), p. 1034. 27 attempting to identify the "in-school and out of school experiences that may have contributed to attitudes and modes of behavior of these teachers."1 Some reasons for the difficulty in identifying teacher behaviors appropriate to particular pupil outcomes have been advanced by Saadeh. Smith interpreted the teacher behaviors in the inter- action as verbal and analyzed the interaction in terms of logical Operations; others, like Flanders, Hughes, etc. pictured it as psychological and analyzed it in terms of emotional control; still others like Gordon, pictured it as sociological and analyzed it in terms of group leadership.2 Saadeh concluded, ironically, that none of the interpreta- tions suggested is totally true or false. Controversy aside, emphasis in recent years has indeed shifted to identification and practice of appropriate beha— viors when teacher preparation courses for process-related outcomes are being designed. The underlying assumptions of one attack on teacher education curriculum development by workers at Michigan State University, developers of one of the nine models of the Elementary Teacher Education Project, rest on the assumption that the content and modes of inquiry of the behavioral sciences are sufficiently well developed to provide an adequate base for the preparation of lBallou, op. cit., p. 7. 2Ibrahim Q. Saadeh, "Teacher Effectiveness or Classroom Efficiency: A New Direction in the Evaluation of Teaching," The Journal of Teacher Education, XXI, 1 (Spring, 1970), 80. 28 teachers.1 While Watson2 recognized the need for such a behavioral model nearly ten years ago, Michal's research showed little evidence of the use of such a prOposed model at that time.3 A project in science teacher education undertaken at the University of Texas led to the completion by the sum- mer of 1970 of a number of self-paced "modules." The modules included those directed at: 1. Developing selected process skills in teachers, including specifically the skills of observing, classifying, and inferring;4 and 2. Developing by a questioning strategy the ability to elicit process skill behavior from children, namely observation, classification, and inferring behavior.5 These two modules were developed specifically to help correct the two broad areas of weakness already identified. Feedback from the results of a college teacher leadership conference, where the modules were tested during 1969, included comments to the extent that the Performance Task module, which included 1S. L. T. Clarke, "The Story of Elementary Teacher Education Models," The Journal of Teacher Education, XX, 3 (Fall, 1969), 286-293. 2Fletcher Watson, "Novak's Research," National Asso- ciation for Research in Science Teaching, I (1963), 133. 3Bernard E. Michals, "The Preparation of Teachers to Teach Elementary School Science," Science Education, XLVII, 2 (March, 1963). 4Butts, 0p. cit., p. 25. 5Koran and Judge, 0p. cit. 29 the Process Questioning Strategies instructional treatment, alone could meaningfully occupy the time of an entire typi- cal science methods course.1 The need for testing the rela- tive effects of one or the other instructional treatment appeared to be one way of resolving the dilemma of content selection for methods courses. The modules chosen are further described in Chapter III. Testing the relative effects of two instructional methods to the extent of comparing teaching behaviors had implications for careful experimental design. Several studies were reported in the literature in which the experi- mental design was such that it was difficult to distinguish whether effects measured were a result of training methods or of differences in the materials subsequently used in teaching by those teachers involved in the study.2 Moon, for example, found that inservice teachers trained in the methods and materials of the S.C.I.S. and subsequently using such materials in classrooms differed significantly from a control group in question types generated during subsequent science teaching. The control group, however, used 1David P. Butts, Gene E. Hall, and John J. Koran, Jr., "College Teachers: A Resource for Implementing Change," Report Series #55 (Austin, Texas: The Research and DevelOpment Cen- ter for Teacher Education, University of Texas, 1970), p. 25. 2John H. Wilson and John W. Renner, "The 'New' Science and the Rational Powers: A Research Study," Journal of Research in Science Teaching, VI (1969), 303-308. Thomas Charles Moon, "A Study of Verbal Behavior Patterns in Primary Grade Classrooms During Science Activities' (unpublished Ph.D. dissertation, Michigan State University, 1969)! p. 114. 30 conventional science materials as normally supplied by the local boards, while the experimental group used the consid— erably different S.C.I.S. materials. Moon concluded that: Although the SCIS summer workshop's activities seemed to have a pronounced influence upon the experimental teachers' science presentations during those fall months immediately following its conclusion, the possibility cannot be discounted that the types of science materials used by these teachers might also have contributed to this influence.1 Tucker did control for type of "materials," in that after each of several groups of teachers completed a differ— ent experimental treatment he observed all teachers in his sample as they taught "Mystery Powders," a unit selected from those developed by the Elementary Science Study (E.S.S.) cur— riculum development group. Tucker found not only that sig- nificantly different questioning effects earlier attributed to treatment disappeared when all groups taught "Mystery Powders," but also that some groups used higher level ques- tions, apparently as a result of the materials used.2 In the present study, materials and facilities were controlled to the extent that where teaching behavior was being assessed, each.teacher was provided with identical materials, as described in Chapter III. lMoon, op. cit., p. 114. 2Jerry L. Tucker, "The Effect of Televised Science Instruction on Verbal and Nonverbal Process Behaviors of Teachers and Students in Grades 1 - 4" (Paper presented at the National Association for Research in Science Teaching meeting in Chicago, April, 1972). 31 Selected Characteristics of Teachers A useful criterion of a teacher's effectiveness may be defined as his effect on his pupils' performance in view of a set of educational objectives defined in terms of desired pupil outcomes.1 The immediate objective of much teacher preparation, however, is to bring about teacher behaviors which are largely describable. Failing that, a propensity to behave in a certain way, given selected stimuli, can be justified as a less desirable, yet worthwhile, objec- tive. For a subset of teachers in the present study, an attempt was made to assess teacher effectiveness directly on the basis of pupil performance, but other behavioral and attitudinal characteristics were measured for those and the entire sample of teachers. In order to provide a better background for interpret- ing the design, instrumentation and results of this study, the subsequent section of this chapter is devoted to the major variables of interest in the study. Attitudes, verbal behaviors in general, and question— ing behaviors in particular will be examined. Insight into the methods and results of previous research will thus be gained. Finally, the methods and results of studies con- cerning the determination of pupil performance in relation to process skills will be reviewed. lSaadeh, 0p. cit., p. 76. 32 Teacher Attitudes Consideration of attitudes in this study results from the notion that "effectiveness in teaching elementary school science is to some extent a function of the teacher's attitude toward science."l Indeed, the need to develop positive attitudes toward aspects of science instruction has been advanced as a major guideline for preservice elementary science preparation.2 Yet Aiken and Aiken reviewed dozens of published articles and dissertations in science education from the last decade and found no highly consistent picture of the nature, causes, and development of science attitudes in those studies.3 Nevertheless, the underlying assumption "that changes in attitude always precede other changes,’ warrants a careful study of the attitude construct for its implications for science education.4 The nature of an attitude may be characterized by the following statement by Allport: A mental or neural state of readiness, organized through experience, exerting a directive or dynamic influence lPatricia Schwirian, "Characteristics of Elementary Teachers Related to Attitudes Toward Science," Journal of Research in Science Teaching, VI, 3 (1969), 203. 2"Preservice Science Education of Elementary School Teachers," op. cit., p. 12. 3Lewis R. Aiken, Jr., and Dorothy R. Aiken, "Recent Research on Attitudes Concerning Science," Science Education, LIII, 4 (October, 1969), 295-305. 4Erwin P. Bettinghaus, Persuasive Communication (New York: Holt, Rinehart and Winston, Inc., 1968), p. 22. 33 upon the individual's response to all objects and situations with which it is related. Allport's definition implies that attitudes are learned and may be inferred from the behavior that the individual reveals. Bettinghaus noted, however, that if the relationship between the attitude held and the behavior revealed were complete, there would be no need for the conceptualization of an atti- tude.2 Staley listed four Specific referents to which teach— ers should hold positive attitudes. They are: . Science . Teaching . Teaching elementary school science 3 . Involvement of students in learning activities. #WNH Moore, however, reported that no single instrument was, in fact, available to measure attitudes toward "teaching science in the elementary school."4 He later constructed and reported such a scale. lCarl Allanmore Murchison, ed., A Handbook of Social Psychology (Worcester, Mass: Clark University Press, 1935). Chapter 17 by Allport; p. 810. 2Bettinghaus, op. cit., p. 21. 3Frederick Staley, "A Comparison Study in the Effects of Pre-Service Teachers Presenting One or Two Micro-Teaching Lessons to Different Sized Groups of Peers on Selected Teach- ing Behaviors and Attitudes in an Elementary Science Methods Course" (unpublished Ph.D. dissertation, Michigan State University, 1970), p. 58. 4Richard W. Moore, "The Development, Field Test and Validation of Scales to Assess Teachers' Attitudes Toward Teaching Elementary School Science" (paper presented to the National Association for Research in Science Teaching, Chicago, April, 1972). 34 The writer decided that several existing scales based on different reference objects, "teaching science," and "different methods of teaching science" would lead to the best inferences about attitudes for purposes of this study. Those scales and their measure are described in Chapter III. Considerable research has been conducted to deter- mine the effect on attitude of various teacher education programs, but such changes in teachers as a result of science methods courses or portions thereof are few. Butts and Raun showed that some teachers' attitudes do change significantly when experienced teachers are involved in an inservice pro- gram which is directed toward increased competence in the processes of science.1 Bruce, however, also using a sample of experienced teachers, found no significant differences in teacher attitude toward the teacher-pupil relationship before and during involvement in the activities of an inservice workshop in the methods and materials of the S.C.I.S.2 Rose conducted an extensive study into the effects of a methods course in science with preservice sub- jects. She found that a treatment consisting of a methods course in the teaching of science in the elementary school 1David P. Butts and Chester H. Raun, "A Study in Teacher Attitude Change," Science Education, LIII, 2 (March, 1969), 103. 2Larry Rhea Bruce, "A Determination of the Relation- ships Among SCIS Teachers' Personality Traits, Attitude Toward Teacher-Pupil Relationship, Understanding of Science Process Skills and Question Types" (unpublished Ph.D. dis- sertation, Michigan State University, 1969). 35 purporting to emphasize the growth in positive attitudes toward science, and knowledge of science processes, given a group of preservice elementary school teachers, can effect a change in their position in these two areas within a thirty- two hour instructional sequence. She further concluded that a preservice elementary school teacher's knowledge of the processes of science has precedence over her knowledge of the content of science or her attitude toward science when relationships to initial teaching behaviors are considered. Finally, she reported that these teachers who do have posi- tive attitudes toward science are not necessarily those who show high knowledge of the processes of science. Oshima compared lecture-demonstration and individual investigation methods of instruction in preservice methods classes and found no significant changes occurred in either the experimental or control groups on measures of attitude toward science. The experimental group, however, showed a significant positive change in confidence in teaching science.2 Liddle, on the other hand, found that a lecture- demonstration mode of small group instruction in an elemen- tary science methods course produced greater positive changes lRyda D. Rose, "The Relationship of Attitudes, Knowl- edge, and Processes to Initial Teaching Behaviors in Science" (paper presented at the National Association for Research in Science Teaching, Chicago, April, 1972), 11. 2Eugene A. Oshima, "Changes in Attitudes Toward Science and Confidence in Teaching Science of Prospective Elementary Teachers," Dissertation Abstracts, XXVII, 12 (1966). a 36 in a group of attitude measures related to science and the teaching of science than did an auto-instructional mode.1 Moon reported separate studies by Kleinman and Hines which collectively concluded that "The largest handicap to adequate science presentation in the elementary schools was a reluc- tance of teachers to teach science because of inadequate backgrounds."2 One study was found in which a deliberate strategy was being used to manipulate scientific attitudes in pre- service elementary science teacher trainees. Manipulated conditions, including written persuasive communication, were being assessed for their effects on attitude change. Results indicated that presenting a persuasive communication is an effective means of modifying the science attitudes of elemen— tary teacher trainees.3 Regarding the relationship between teacher attitude and pupil characteristics, Bixler reported that positive teacher attitudes have a positive effect on pupil achievement lEdward Maynard Liddle, "A Quasi-Experimental Study of the Effects of Two Modes of Instruction on the Attitudes of Preservice Elementary Teachers in the Area of Science Teaching" (unpublished Ph.D. dissertation, Michigan State University, 1971), 98. 2Moon, op. cit., p. 36. 3Earl F. Hughes, "Role Playing as a Technique of Developing a Scientific Attitude in Elementary Teacher Trainees," Journal of Research in Science Teaching, VIII, 2 (1971), 121. 37 in science.1 In general, however, there is inconclusive research regarding the relationship between teacher atti- tudes and pupil achievement. By contrast, teacher attitudes have been found to relate positively to pupil attitudes. Pickering reported that Blackwood, Litwiller, Mastin, and Faust were among those who agreed that a pupil's attitudes toward topics, materials, and ideas are strongly influenced by the attitude of the teacher. He found no contradictory results.2 Aiken and Aiken reported that Greenblatt and Bixler found a correspondence between teachers' and students' attitudes toward science in elementary school.3 Wick and Yager also reported that there is a positive relationship between teacher attitudes in science and the attitudes which students develop.4 Based on the literature reviewed, the conclusion is warranted that although teacher attitude may not be a good predictor of pupil achievement, it appears to be of consid— erable importance in developing positive pupil attitudes. 1James Bixler, "The Effect of Teacher Attitude on Elementary Children's Science Information and Science Atti- tudes" (unpublished Ph.D. dissertation, Stanford University, 1957), p. 138. 2Pickering, op. cit., p. 36. 3Aiken and Aiken, op. cit., p. 298. 4J. W. Wick and R. E. Yager, "Some Aspects of the Student's Attitude in Science Courses," School Science and Mathematics, LXVI (March, 1966), 269-273. 38 Teacher Classroom Behaviors The complex teacher-learner interaction which results in observable behaviors of teachers and their pupils has been studied from several theoretical orientations. One View holds that teaching behaviors may best be interpreted in terms of a model in which teaching has been viewed as psychological, with the result that teaching behaviors are analyzed in terms of socioemotional control. In any case, most of the functions that are associated with teaching are implemented primarily by verbal communication.1 An analysis of question types asked during science classes has been suggested by Taba to be a promising line of research. Such an approach is consistent with a model of teaching as a series of logical Operations. Taba suggested that the role of questions becomes crucial, and the way of asking questions by far the most influential single teach— ing act.2 The importance of questioning in science is fur- ther reflected by the number of reviews which underline the importance of questions properly asked and answers to lNed Flanders, "Teacher Influence, Pupil Attitudes and Achievement," U.S.O.E. Report 65, O.E. Cooperative Research Monograph No. 12 (Washington, D. C.: U. S. Govern- ment Printing Office, Department of Health, Education and Welfare, 1965), p. l. 2Staley, op. cit., p. 52. 39 them prOperly used.l Furthermore, Bloom suggested that studies have shown that there are specific kinds of questions that evoke similar kinds of student responses.2 Observa- tions by Strasser supported the position that the kinds Of Operations children perform are largely determined by the kinds of questions teachers pose. The importance attached to question types in science classes has resulted in a variety of modes of classifying questions. Karplus and Thier, for example, suggested "con- vergent" and "divergent" to be useful categories. They sug- gested that "convergent" questions tend, in part, to cause children to summarize and draw conclusions, while "divergent" questions lead to further questions or to cause children to plan or carry out experiences with equipment and materials.4 lRenner and Ragan, Ob. cit., p. 220. Gerald S. Craig, What Research Says to the Teacher: Science in the Elementary Schools (Washington, D. C.: National Education Association, 1957), p. 25. Hurd and Gallagher, Op. cit., p. 129. Arthur A. Carin, "Techniques for Developing Discov- ery Questioning Skills," Science and Children, VII (April, 1970), 13-15. Willard J. Jacobson and Allan Kondo, SCIS Elementary Science Sourcebook (Berkeley: University of California Regents, 1968): p. 45. 2Judith M. Bloom, "Videotape and the Vitalization Of Teaching," Journal Of Teacher Education, XX, 3 (Fall, 1969), 311-319. 3John H. Wilson, "The 'New' Science Teachers Are Asking More and Better Questions," Journal of Research in Science Teaching, VI, 1 (1969), 49-53. 4 Karplus and Thier, Op. cit., p. 86. 40 Hall used "Open" and "closed" question categories. The parallel with "divergent” and "convergent" is apparent from Hall's operational definitions of the terms: An "Open" question requires a divergent or evaluative response: A "closed? question is a question reguiring a cognitive, memorative or convergent response. Moon reviewed the question categories used in elementary science research. He noted that "lower" and "higher"; "con- crete," "abstract," and "creative" are among the question categorizations found useful by various workers.2 Several studies were found in which question cate- gories conformed more directly to the processes of science. Wilson called such questions "demonstration of skill" ques- tions. In a study comparing experienced teachers using S.C.I.S. and conventional science materials, Wilson found that the "new science" teachers used significantly more demonstration Of skill-type questions than the conventional group. This would suggest that the "new science" teachers were placing more emphasis upon the development Of such science skills as observation, measurement, interpretation, and prediction instead Of emphasizing science content. The traditional science teachers, meanwhile, used significantly . . 3 more comprehenSIOn-type questions. Tucker recommended, on 1Gene E. Hall, "Teacher—Pupil Behaviors Exhibited by Two Groups Of Second Grade Teachers Using Science--A Process Approach," Science Education, LIV, 4 (October-December, 1970), 328. ' 2Moon, Op. cit., pp. 41-42. 3Wilson, op. cit., p. 50. 41 the basis of his research, that the analysis of teacher ques- tions along "process" dimensions in science be continued.1 Koran simply determined the frequency of each class of science process skill questions generated under controlled experimental conditions for the particular process selected for instruction.2 An experiment in which question complexity was manip- ulated was conducted by Yost using a sample Of 190 seventh grade students. He found that as the complexity of questions to which students responded following segments of instruction increased, student achievement on science subject content also increased. Furthermore, students who responded to complex questions made more incorrect responses than did students responding to less complex questions. Collectively, these results suggested that students learned more when asked more complex questions following science instruction, even though they also tended to make more errors in their responses. Using the question types instrument selected for the present study with S.C.I.S.-trained and conventional lTucker, op. cit., p. 17. 2John J. Koran, Jr., "The Relative Effects of Class- room Instruction and Subsequent Observational Learning on the Acquisition of Questioning Behavior by Pre-Service Elementary Science Teachers," Journal of Research in Science Teaching, VI, 3 (1969), 217-223. 3Michael Yost, Jr., "The Effect on Learning Of Post Instructional Verbal Responses to Questions of Different Degrees of Complexity" (a paper presented to the National Association for Research in Science Teaching, Minneapolis, March 5-8, 1970). 42 groups of inservice teachers, Moon reported that the S.C.I.S. teachers used significantly higher level questions than in their own pretraining performance, where they used conven— tional science materials.1 In a similar investigation, Fischler and Anastasiow concluded that S.C.I.S. teachers asked fewer questions than did control teachers, but they also asked more indirect questions.2 In general, to classify questions based on the science process skill which they were designed to elicit has been found to be a valuable technique for question analy- sis, and this was one method Of analysis used in this study. The literature was unclear in suggesting the optimum number of questions teachers should ask while encouraging children to engage in science process skill behavior. Carin, for example, suggested that the number of questions used should be reduced or limited.3 Rowe would agree, but emphasized that a carefully managed time interval, or "wait- time," following verbalization of the question was the key to such reduction Of question numbers. Yet Wilson reported in his research that inservice "new science" teachers were asking 49 per cent more questions than their traditional lMoon, op. cit., p. 114. 2Abraham S. Fischler and N. J. Anastasiow, "In- Service Education in Science (A Pilot)," Journal of Research in Science Teaching, III, 3 (1965), 283-284. 3Carin, Op. cit., p. 13. 43 counterparts, suggesting that this was "encouraging to note."1 The instructional conditions manipulated in the present study, however, did not suggest Optimizing the number of questions used, nor did the investigator make any such sug- gestion to the subjects in the study. The second model Of teacher behavior during pupil- teacher interaction rests on the supposition that the behavior Of the teacher, more than any other individual, sets the climate of the class. In terms of verbal behavior, class- room climate has been defined according to two variables: 1. Direct or dominative influence consisting of stating the teacher's own Opinions or ideas, directing the pupil's action, criticizing his behavior, or justi- fying the teacher's authority or use of that authority. 2. Indirect or integrative influence consisting of soliciting the Opinions or ideas of the pupils, applying or enlarging on those opinions or ideas, praising or encouraging the participation of pupils, or clarifying and accepting their feelings. While there are times for any teacher when direct influence is most appropriate and other times when indirect influence is most apprOpriate, Flanders found that in general, over long periods of time, when teachers exhibited a greater proportion of indirect behaviors their pupils showed greater achievement than pupils of teachers exhibiting a lower indirect to direct (I.D.) ratio.3 lWilson, Op. cit., p. 53. 2Edmund Amidon and John Hough, eds., Interaction Analysis: Theory, Research and Application (Reading: Addison-Wesley Publishing Company, 1967), p. 109. 31bid. 44 The system of interaction analysis provides an explicit procedure for quantifying direct and indirect influ— ence that is closely related to the teacher behaviors iden— tified by research on classroom climate. The Instrument for the Analysis of Science Teaching (I.A.S.T.) base scale, designed especially for such measure and described in Chapter III, was used in this study. Research suggests that where the classroom atmosphere is highly integrative, pupils show greater spontaneity and initiative, more voluntary social contributions, and more acts of problem solving.1 Conversely, if the teacher is highly dominative, pupils tend to be easily distracted, and have greater compliance with as well as rejection of teacher domination.2 The writer felt that determining the I.D. ratio and examining its relationship to other teacher char- acteristics as well as to pupil effects would be worthwhile in that tentative results of other workers suggested such relationships, particularly to pupil attitude3 and pupil achievement.4 The relationship Of I.D. to the pupil vari- ables, however, has not been reported under conditions of short-term teacher influence, such as existed in this study. Rezba, using a sample of preservice science teachers, found lFlanders, op. cit., p. 4. 21bid. 3Amidon and Hough, op. cit., p. 224. 4Ibid., p. 229. 45 significantly more indirect behaviors and significantly fewer direct behaviors were demonstrated during microteaching after a treatment designed to provide a model of laboratory beha— viors appropriate to inquiry-oriented laboratory activities and experiments.1 Moon found that, when compared to con- ventional teachers, there was a significant difference in the experimental teachers' I.D. ratios during science activi- ties after the introduction Of S.C.I.S. teaching methods and materials. Furthermore, the ratios were lower for the S.C.I.S. teachers.2 In a study designed to compare the effects Of several types of preparation on inservice science teachers, Hall found no differences in I.D. between the several treat- ment and control groups when teachers taught science lessons to classes of children.3 A revised I.D. (i.d.),constructed by removing from the calculation of the ratio the substantive behaviors of 4 lecturing and asking questions, has also been used by Hall. The I.D. is closely related to the i.d., but the i.d. is 1Richard J. Rezba, "Training Pre-Service Science Teachers for Laboratory Instruction Using I.S.C.S. Micro- teaching Sessions" (a paper presented to the National Association for Research in Science Teaching, Chicago, April, 1972). 2Moon, op. cit., p. 114. 3Gene E. Hall, "A Comparison Of the Teaching Beha— viors of Second Grade Teachers Teaching Science——A Process Approach With Second Grade Teachers Not Teaching a Recently Developed Science Curriculum" (unpublished Ph.D. disser- tation, Syracuse University, 1968), p. 66. 4Ibid., p. 67. 46 less lesson specific or less content oriented.l Hall found that inservice teachers trained in the use of S.--A.P.A. and having the support Of a school system science coordinator had lower i.d.‘s and thus were more direct in their motivation and control of the classroom than a group not teaching a recently developed science curriculum.2 The I.D., but not the i.d., was used in the present study. In regard to the student talk to teacher talk (S.T.) variable, Flanders develOped what he called the "rule of two—thirds" to generalize about classroom "talk." The rule states that: In the average classroom someone is talking two-thirds of the time; two-thirds of that time the person talking is the teacher, and two-thirds of thg time the teacher talks, he is uSing direct influence. For the teachers of high—achieving children and teachers of low-achieving children, the rule was modified to less and more teacher talk, respectively. For the low-achieving groups, moreover, teachers used direct influence about 80 per cent Of the time, while the teachers of the high-achieving 1Albert C. Bosch, "Relationships of Teaching Patterns to Indices of Classroom Verbal Interaction Behavior" (a paper presented at the annual meeting of the National Asso— ciation for Research in Science Teaching, Chicago, April, 1972). 2Hall, "A Comparison," Op. cit., p. 67. 3Edmund Amidon and Michael Giammatteo, "The Verbal Behavior of Superior Elementary Teachers," in Interaction Analysis: Theory, Research and Application, ed. by Edmund Amidon and John Hough (Reading: Addison—Wesley Publishing Company, 1967), p. 188. 47 groups used direct influence about 50 per cent of the time.1 One reference was located that discussed the S.T. ratio in student teachers. Kirk found that student teach— ers talk more than their pupils, but tend to Speak less as time goes on. Their use of "lecture," however, increases. Pupil contributions also typically increase during a student- teaching term.2 Rose found that preservice elementary teachers teach- ing science encourage more pupil talk, more pupil—initiated response, and higher level inquiry behavior patterns during microteaching than during single tutorial experiences. Fur- thermore, Rose implied that some student teachers talk less and that some involve pupils in more manipulative activities in a microteaching than in a tutorial situation. Pupil Achievement Agreement was found in the literature for the posi— tion that the most valid measures of teaching influence are measures of pupil change consistent with selected learning lIbid. 2Jeffery Kirk, "Elementary School Student Teachers and Interaction Analysis," in Interaction Analysis: Theory,- Research and Application, ed. by Edmund Amidon and John Hough (Reading: Addison-Wesley Publishing Company, 1967), pp. 299-306. 3Rose, Op. cit., p. 11. 48 objectives.l Cogan, however, listed at least three important problems which still remain unsolved in the measurement of pupil change: 1. Lack of adequate subject-matter tests in most areas of achievement. 2. Lack of precise instruments capable of measuring changes in social learning skills and in attitudes. 3. The difficulty Of isolating changes dpe to a single teacher in a departmentalized school. The design used in this study minimized the first two problems listed largely by choosing very specific Objectives and a clear test Of the instructional outcomes. The influence Of other teachers was also controlled in the design Of the study. NO studies were located in which preservice science teachers just learned a skill in a college setting, then had an Opportunity to practice it with children, followed by subsequent measurement of pupil performance. There were many instances reported, however, in which children were taught process skills and subsequently were measured for attainment of these skills. Such measurement for third grade and other children was conducted and reported by the develop— ers of Science--A Process Approach (S.——A.P.A.) as part of 1Gage, op. cit., p. 248. Gregor A. Ramsey and Robert W. Howe, "An Analysis of Research Related to Instructional Procedures in Elementary School Science," Science and Children (April, 1969), pp. 25— 36. Saadeh, Op. cit., p. 76. 2Morris L. Cogan, "Theory and Design of a Study of Teacher-Pupil Interaction," in Interaction Analysis: Theory, Research and Application, ed. by Edmund Amidon and John Hough (Reading: Addison-Wesley Publishing Company, 1967), p. 188. 49 their program evaluation.1 TorOp also measured third and other elementary grades in a school district in which S.--A.P.A. was in use. He reported 88 per cent correct responses to the individual competency measure designed for an "inferring" exercise identical to the one taught to chil— dren in the present study.2 There was a stated need in the literature for group process tests for children, in addition to the individual competency measures develOped by S.---A.P.A.3 Using a group process measure which he did not further identify, Wideen found that pupils taught by S.--A.P.A. methods and materials achieved significantly better scores than pupils taught with conventional methods and materials.4 Tucker, using a sample of inservice teachers, manip- ulated several conditions Of T.V. and non—T.V. instruction directed at increasing science process skill levels and their 1Henry H. Walbesser, Jr., "An Evaluation Model and Its Application," American Association for the Advancement of Science, Miscellaneous Publication 68-4, 1968. 2William TorOp, "Pupil Achievement in Science-—A Process Approach--Part E" (a paper presented at the National Association for Research in Science Teaching meeting in Chicago, April, 1972). 3Henry H. Walbesser and Heather L. Carter, "The Effect of Test Results Of Changes in Task and Response For- mat Required by Altering the Test Administration From an Individual to a Group Form," Journal of Research in Science Teaching, VII (1970), 1-8. 4Marvin Wideen, "Comparison of Student Outcomes for Science--A Process Approach and Traditional Science Teaching for Third, Fourth, Fifth and Sixth Grade Classes: A Product Evaluation" (a paper presented at the National Association for Research in Science Teaching meeting in Chicago, April, 1972). 50 application. Group "Picture Tests for Science Processes" administered to the pupils of those teachers in first through fourth grades revealed no significant differences among pupils for any treatment.1 MacBeth and Fowler found no sig- nificant differences when they compared the effects on third grade pupil achievement when pupils manipulated or did not manipulate S.--A.P.A. materials. Individual competency measures were used in the study. Research conducted by Abraham and Nelson used inservice teachers but was otherwise parallel to the present 3 The effect of two distinct discussion techniques on study. the develOpment of four inquiry skills emphasized in several of the new elementary school science curricula was determined using an Inquiry Skill Measure. The sixth grade pupils of both treatment groups significantly increased in their abil- ity to make observations. Pupils in the probing discussion group differed significantly from their nonprobing discussion counterparts, in making inferences based on Observations. The differences resulted in the one group making both more lTucker, Op. cit., p. 9. 2Douglas Russell MacBeth and H. Seymour Fowler, "The Extent to Which Pupils Manipulate Materials and Attainment of Process Skills in Elementary School Science" (a paper pre— sented at the National Association for Research in Science Teaching meeting in Chicago, April, 1972), p. 9. 3Eugene Abraham and Miles Nelson, "Post Laboratory Discussion Techniques and Inquiry Skill Development in Science" (a paper presented at the National Association for Research in Science Teaching meeting in Silver Springs, Maryland, April, 1971). 51 and more accurate inferences than the other. No significant pupil effects were found, however, where pupils were: 1) to formulate tests in order to verify inferences and 2) to classify. Summaryiof the Review Of the Literature Process skill develOpment Objectives were found to be among the most important objectives for children studying science at the elementary level. Modern curricula reflect that importance by providing situations for children that encourage the develOpment of such skills. Teachers were found to lack a sufficient background in the skills and also in the complex behaviors associated with eliciting the apprOp— riate process skill behavior in children. Concentrated efforts to develop materials for teacher education have recently been made. Important among these were the materials developed by the Research and DevelOpment Center and the University Of Texas.1 These materials were develOped to correct the specific teacher weaknesses of 1) lack of knowledge and ability to use science process skills and 2) lack Of ability to teach such skills effectively in a classroom. lButts, Op. cit. Koran and Judge, Op. cit. 52 The need for a careful research design as implied by Moon1 and Tucker2 and pertaining to the independent testing of instructional methods and the materials used was reviewed. In order to determine the results of science methods instruction with preservice methods students, some important teacher characteristics were selected for review. Attitudes were thought to be important predictors of behaviors,3 but there was no consistent pattern to indicate that science methods courses improved attitudes. Hughes, who planned and executed a deliberate strategy to change attitudes using persuasive communication, however, was able to modify the science attitudes of elementary teacher trainees. There was considerable evidence to suggest that teacher attitudes were positively correlated with pupil atti- tudes. Aiken and Aiken, however, cautioned that the pupils' attitudes toward their teachers, irrespective of subject, also seem to play an important role in shaping the former's attitudes toward science courses.5 There was no conclusive evidence to suggest that teacher attitudes toward science and its teaching affected pupil achievement. lMoon, op. cit., p. 114. ZTUCker, OE. Cit-.0! p0 160 3Schwirian, op. cit., p. 203. Bettinghaus, op. cit., p. 22. 4Hughes, op. cit-, p. 121. 5Aiken-and Aiken, Op. cit., p. 298. 53 Several theoretical models for interpreting the com- plexities of teacher—pupil classroom interaction were reviewed. Questioning strategies, sometimes within a model which viewed teaching as a series of logical operations, were often advo- cated as worthy of study for preservice elementary science teachers preparing to teach inquiry-oriented science lessons. Bloom1 and Wilson2 suggested that the Operations and responses that children perform or make are largely determined by the types of questions teachers pose. A variety of ways to classify questions was reviewed. "Open" and "closed," "divergent" and "convergent," "higher" and "lower" categories, as well as to classify directly on the basis of the process skill that they were designed to elicit, were found to be useful by various workers. Changes in levels of questions used were found in experienced teach- ers by Moon3 and Fischler and Anastasiow4 when the teachers were exposed to the methods and materials of a recently developed elementary science curriculum. A second model of teacher verbal behavior during pupil-teacher interaction was based on the socioemotional climate that develops in a classroom over a period of time. lBloom, op. cit., p. 313. 2Wilson, op. cit., p. 50. 3Moon, Op. cit., p. 114. 4Fischler and Anastasiow, Op. cit., p. 284. 54 Amidon and Houghl found that in general, over long periods of time, greater achievement was demonstrated by the pupils of teachers who had higher indirect to direct verbal behavior ratios. Both Moon2 and Hall3 suggested that experienced teachers using the methods and materials Of a new curriculum were more direct in their verbal behavior than they were prior to the introduction of the curriculum. Rezba, however, using a sample of preservice science teachers, found signif- icantly more indirect behaviors were demonstrated during teaching after a treatment designed to provide a model of lab- oratory behaviors appropriate to inquiry-oriented activities. The literature relating to the S.T. ratio generally supported the claim that slightly higher S.T. ratios were used by more superior teachers. Pupil performance consistent with prior Objectives was listed as perhaps the most valid Of measures of teacher influence.4 Yet difficulties relative to obtaining adequate instruments, and also to establishing of cause and effect relations in complex social settings such as schools, were responsible for the fact that pupil performance was seldom used as a measure of teacher effectiveness. However, Abraham ‘ 1Amidon and Hough, Op. cit., p. 109. 2Moon, Op. cit., p. 114. 3Hall, "A Comparison," Op. cit., p. 67. 4Rezba, Op. cit., p. 11. 55 and Nelson manipulated discussion techniques with inservice teachers and found that some groups of students gained sig- nificantly in making observations, and one gained in making . . 1 inferences based on Observations. 1Abraham and Nelson, Op. cit. CHAPTER III DESIGN OF THE STUDY This chapter includes a discussion Of the selection and a description of the sample, descriptions of the treat- ments and instruments. The research design and procedures of the investigation are develOped with a description of the preliminary arrangements, collection of data, analysis of data, and research hypotheses. Selection and Description of the Sample The subjects selected for this study were lower elementary (K-3) education majors completing, in some 90 per cent of the cases, their sophomore year in the Faculty Of Education, University Of Manitoba at Winnipeg. The remain— ing subjects were in either their junior or senior years. Subjects selected in the experimental study consisted of 40 individuals, each regularly enrolled during winter term, 1971, in one or the other Of two classes Of "Teaching of Science: Primary." All preservice teachers electing the lower elementary level for emphasis in their program, and enrolled in the two-year teacher certification program, were required to take the course. Prospective teachers Special— izing in lower elementary education at University of Manitoba 56 57 were required to take a minimum Of five full University courses, comprising 30 term credits of general Arts and Science instruction, in addition to a number of methods, options, and other professional courses. The methods courses included those in language arts, social studies, science, mathematics, music, art, and physical and health education. The group of teachers selected for purposes of this study had already completed methods courses in language arts, social studies, art, and music during fall term, 1970. They were enrolled in methods courses pertaining to the teaching of mathematics, physical and health education, and science during winter term Of 1971. Consequently, the teachers involved had already learned some teaching skills prior to the onset of the study. Included in this experience was the equivalent Of some three weeks during the fall term that were devoted to student teaching. In many, but not all cases, teachers conducted science lessons during that time. Thus, while they had not yet encountered formal instruction in science methods, many did in fact have limited experience in teaching science. The subjects were all female, with a range Of ages from 18 to 38, and with mean and median ages Of 21 and 19, respectively. A random sample Of 20 subjects was selected without replacement from a total of 52 subjects enrolled in one or the other of two sections of "Teaching of Science: Primary," using a random numbers table. Each Of these indi- viduals was assigned to the "Process Skills" instructional 58 group. An additional 20 subjects were randomly selected without replacement and were assigned to the "Process Ques- tioning Strategies“ instructional group. The total sample Of 40 subjects was thus statistic- ally comparable to the 12 teachers remaining in the two classes which made up the sampling universe. On the basis of several characteristics, they were similar to an addi- tional group of 55 education majors enrolled in the lower elementary (K-3) course at Faculty of Education, University of Manitoba, during the fall semester of 1970. (See Appen— dix B). Seven metrOpolitan Winnipeg schools were selected to provide the necessary third grade pupils who were to be taught by the teachers participating in the study. The schools were representative Of those in the southwest quadrant of metropolitan Winnipeg, but did not exhaust the total elementary school population of the area. Proximity to the University of Manitoba and ease of access to third grade classes were important factors involved in the choice of schools. The Faculty of Education regularly places student teachers in all of the schools selected. A list of the schools selected, with some of the characteristics of schools and pupils involved in the study, appears in Appendix C. The design chosen calls for each teacher to teach at each of two different times to two small groups of pupils chosen from and representative of an intact third grade 59 class. In order to select such groups of pupils within each class, the writer first prepared a list of random numbers ranging from 1 to 35, a number which would include the num— ber of pupils on any class roll in the sample. Next, the total class membership number was found for each class, and numbers on the random number list exceeding those for that particular class roll were deleted. Names of any pupils absent from class on the initial day of teaching by student teachers were noted. Next, the entire class, including those absent, was divided into quarters based on the list of random numbers, with each number representing an individ— ual in the class. The first two quarters were selected to be taught during the pretest phase. Figure 1 describes the selection and assignment of teachers to instructional method and pupil groups. The procedure for selecting groups of pupils for teachers was modified in two schools where some 100 pupils were normally taught in a single large, open area. In these schools, the entire group of pupils was used as a pool from which random groups of five were chosen for teaching in the same way as described for the regular classes. Since pupils absent on the first day of teaching were added to the groups left for the second or posttest phase, pupil selection may be called representative, but not strictly random. Any pupils scheduled for the second teaching phase but absent from class on that day were not included in the sample. 60 Teacher Sample Pupil Sample, 37085 (for a given reproach- tative Classrfiom they were divided as Teachers Enrolled in Teaching of Science: Primary 1. Process below). (Winter Term) Skills Group y W (one teacher 586 585 from each Pretest Posttest group to the :gmeucggge 5s. 53. p p Pretest Posttest A A 2. Process Questioning Strategies Group Figure 1.——Se1ection and assignment of teachers to instructional method and pupil groups. 61 In two schools, Dalhousie and Ralph Maybank, and for the 16 teachers assigned to those schools in this study, pupil performance based on lesson Objectives was determined. While the schools were representative of the remainder used in the study, they were not randomly selected for the purpose of collecting pupil performance data. The measures used to determine performance are described later in this chapter. Description of the Treatments The materials used in administering the experimental conditions consisted of modules and related materials devel- Oped by the Science Education Center and the University of Texas. The initial modules developed in the series were designed for group instruction but were later revised to a self-directed format. The self—directed format of the mod- ules permits instruction which: 1. is aimed at the personal needs of the student and 2. provides immediate feedback to the student.1 Modules were develOped and field tested at a number of institutions including the University of Manitoba. Data collected during the development phase were largely des— criptive, but were used in part by the develOpers to revise the modules to the form used in the study. 1David P. Butts, "The Teaching of Science, Self- Directed Planning Guide, Evaluation Plan" (Austin, Texas: Science Education Center and The University Research and DevelOpment Center for Teacher Education, The University Of Texas, September, 1970). 62 Process Skills Method The "Process Skills" group received instruction according to four modules selected from a larger group.1 Modules chosen were: (1) "The Cube," (2) "Vegetables and Other Stuff,“ (3) "Cartoons," (4) "S and P Boxes.“ Each module consisted of a Task Sheet with the following sub— divisions: A. Task Objectives B. Task Focus C. Task Activities D. Task Appraisal The modules were designed tO increase the science process skills of people who used them. Specifically, the process skill development objectives Of the modules were related to the following processes: "The Cube" - Observing "Vegetables and Other Stuff" - Classifying "Cartoons" - Inferring "S and P Boxes" - Inferring The modules included sufficient materials to carry out the . . . 2 various objectives and tasks. 1David P. Butts, "Self-Paced Instruction—-A Prelim- inary Report," Appendix B, pp. 1-108. 2Ibid., "The Cube"-—Appendix B, pp. 1-4; "Vegetables and Other Stuff"-—Appendix B, pp. 26-29; "Cartoons"-- Appendix B, pp. 53-60; "S and P Boxes"-—Appendix B, pp. 61-66. 63 Process Questioning Strategies Method The "Process Questioning Strategies" group received instruction in accord with parts of Elementary School Per- formance Tasks: Supervision Module.l This module was developed to help teachers acquire certain specific behaviors thought to be related to pupil learning. Some Of these spe- cific behaviors included the questioning techniques neces- sary to elicit various kinds Of inquiry behavior from children. The presentation Of tasks to the subjects took place through written materials which depicted the characteristics of the task. Each Task Sheet included: 1. The name of the behavior class desired 2. A short definition of that behavior 3. A written description Of representative question types (behaviors) 4. A rating scale Specifically, the tasks chosen for the experimental group in this study were: 1. Eliciting Observations 2. Eliciting Classifications 3. Eliciting Inferences2 A micro-teaching setting with peers and audio-tape recorders was the Option chosen in this study for the task acquisition lKoran and Judge, Op. cit. 2Ibid., pp. 24—26. 64 phase. In such a setting, subjects fulfilled the objectives for the tasks chosen. Description Of Instruments A number of instruments were used to collect data in the study. Figure 2 gives an overview of the various meas— ures and the time at which they were made. Pretest Posttest For 40 Ss: a) Science Process Test for Elementary School Teachers yes no Teacher Attitudes: b) Attitude Toward Different Methods Of Teaching Science no yes c) Attitude Toward Teaching Science yes yes Teacher Behaviors: d) Question Type Ratio yes yes e) Indirect/Direct Ratio yes yes f) Student Talk/Teacher Talk Ratio yes yes For 16 Ss: g) Pupil Performance yes yes Figure 2.--Overview of type and time of measures used. 65 Independent Measures Based on a review of the related literature, it was decided that a measure Of teacher general ability in the cog— nitive skills as measured by the paper and pencil test to be described could serve as a useful predictor of the teach— ing characteristics to be described later in this chapter. Accordingly, the Science Process Test for Elementary School Teachers was chosen. Classifications of High and Low Initial Process Levels were determined from pretest raw scores on the instrument by dividing the scores at the mean into two nearly equal groups. Score ranges and corresponding classi- fications were: Range Initial Process Level 19 & above High 18 & below Low- The Science Process Test for Elementary School Teachers is a 40-item multiple-choice instrument designed by Sweetser to measure process skills held by elementary science teachers.1 (See Appendix A.) An item analysis on the test reported by Sweetser and Taylor showed an overall Kuder-Richardson reliability coefficient of 0.76 for two groups of 49 and 54 experienced teachers.2 For a group of lEvan A. Sweetser, Science Process Test for Elementary School Teachers (3rd. ed.; East Lansing, Michigan: Michigan State University, 1968). 2Evan A. Sweetser and Wayne Taylor, "The Development Of an Objective Science Process Test for Elementary Teachers" (paper presented at the National Association for Research in Science Teaching meeting in Chicago, April, 1972). 66 lower elementary (K-3) education majors similar to the group studied and measured by the writer in fall, 1970, the Kuder- Richardson estimate was .72. Dependent Measures Each instrument to follow served to provide one or more measures of the teacher characteristics of interest. Attitude Toward Teaching Science.-—One method of measuring attitude toward teaching science was suggested by Millar.1 In order to devise an instrument designed to meas- ure attitude toward any occupation, Millar constructed an equivalent forms generalized master scale. Each form con- sists of 45 statements to which the subject may respond by placing a plus sign next to each statement with which he agrees. The instrument is scored by determining the median of the scale values chosen by the subject. The term "teaching science" was substituted for the terms "job," "work," "occupation," or "this" and, because the subjects were preservice teachers, each statement was written in the future tense. Copies of the scale, along with scale values associated with each statement of each test, are included in Appendix D. Equivalent forms reliabil- ities for the two forms used have been reported ranging from 1H. E. Millar, "The Construction and Evaluation of a Scale of Attitudes Toward Occupations," Purdue University Studies in Higher Education, XXXV (1934), 68-76. 67 0.71 to 0.92 by Shaw and Wright for the original scale.l Pickering, in a study using prospective elementary teachers in Wisconsin, calculated equivalent forms reliability with a resulting reliability coefficient of 0.83.2 The technique used consisted of administering one form of the test during one class session, followed by the other form during the next class session. Attitude Toward Different Methods Of Teaching Science.--A Likert-type scale developed and first tested by Pickering was used as one measure of attitude.3 For the scale, five items, each reflecting a positive attitude toward each of four approaches to class "control," were designed. Five matching items, each reflecting a negative attitude toward the several approaches to control, were also con— structed. The approaches selected were: 1. Teacher-Centered 2. Teacher-Oriented 3. Pupil-Oriented 4. Pupil-Centered A OOpy of the instrument appears in Appendix E. Pilot studies by the test author using a split halves method revealed an internal consistency of 0.95.4 A test-retest lMarvin E. Shaw and Jack M. Wright, Scales for the Measurement of Attitudes (New York: McGraw-Hill Book Company, 1967). 2Pickering, Op. cit., p. 131. 3Ibid., p. 100. 4Ibid., p. 102. 68 technique was also used to determine the total reliability of the instrument. A coefficient of stability Of 0.81 was thus determined.1 In regard to validity, Pickering reported: In general, student teachers who had indicated a pref- erence for the teacher—centered, or teacher—oriented approach tended to follow these procedures in the classrooms. The same results were indicated for stu- dent teachers who had selected the pupil-oriented or pupil-centered approach. They were generally less dog— matic and more flexible in their planning and presenta— tion Of science lessons than the students that indicated a preference for the teacher-centered or teacher— oriented approaches.2 Details of the method Of scoring Of the instrument are found in Appendix B. By following the procedures referred to, a score could be determined for each individual. The example already cited in Appendix E represents an attitude toward different methods of teaching science that is somewhat teacher—centered, teacher-oriented. Using the technique described ensured that positive numbers representing points on a continuum of approaches to class "control" could be statistically compared. Instrument for the Analysis of Science Teaching Base Scale (I.A.S.T.).--The I.A.S.T. is a l4-category system of interaction analysis constructed by Hall.3 The instrument lIbid., p. 103. 2Ibid., pp. 101-102. 3Gene E. Hall, The Instrument for the Analysis of Science Teaching: A System for Measuring Teaching Behavior, Report Series No. 19 (Austin: The Research and Development Center for Teacher Education, University of Texas, 1969). 69 is similar to Flanders' 10-category system in that teacher verbal behaviors are recorded. The I.A.S.T. differs chiefly in that it provides for distinguishing between various kinds of student behaviors, and also in that it provides specific- ally for recording of additional behaviors which have been found to be important in the teaching of science.1 An excel— lent description of the instrument, its use and application may be found in a teaching module developed under the direc— tion Of Hall.2 A set Of ground rules is used in addition to the category system to aid in reliably coding classroom ver- bal behaviors. In consultation with Hall and Gouge, several additional ground rules were established to facilitate better the utilization Of the instrument in the micro—teaching setting.3 The I.A.S.T., with its categories named and described, followed by a list of ground rules used, is included in Appendix F. The writer analyzed all of the audiotapes of class- room behavior made during the course of the study. Audio- tapes were analyzed during July and August of 1971 using the lGene E. Hall, "Changes in Teaching Behavior of Pre- service Elementary Education Majors as a Result of Training in Using the IAST Base, A System of Interaction Analysis" (paper presented at the 44th annual meeting of the National Association for Research in Science Teaching, Washington, D. C., March 24, 1971). 2Gene E. Hall, Analygis of Teaching Behavior, First trial edition; An Instructional Module (Austin: The Research and Development Center for Teacher Education, The University of Texas, 1969). 3Gene E. Hall, personal communication, July 20, 1971. Charles Gouge, personal communication, July 20, 1971. 7O instrument. Preparation to analyze the audiotapes was made first by achieving the Objectives for the "Analysis of Classroom Behavior" module under the direction of Hall dur- ing several sessions totaling some four hours of time.1 Subsequent training included preparation for and teaching of the module to two classes of preservice elementary teachers at the University of Manitoba during 1969-70. Finally, further literature review and subsequent practice led to a good working knowledge of the categories and their applica~ tion. Trials using several of the audiotapes recorded in a pilot test of the study were made to complete the list of ground rules and to achieve consistency with a mean reliabil- ity of 0.83 as calculated by use of Scott's coefficient.2 A complete list of reliability estimates calculated appears in Appendix G. Science Teaching Observational Instrument (S.T.O.I.).—— The S.T.O.I. was the second of three parts of an instrument first developed to assess a range of behaviors exhibited by teachers in the course Of teaching general science. "Part II" was constructed to facilitate classification of teacher questions into one Of five types, according to the type of student response elicited by the question. The S.T.O.I. is similar to a number of instruments and category systems used lHall, Analysis of Teaching Behavior. 2Edmund J. Amidon and Ned A. Flanders, The Role Of the Teacher in the Classroom (Minneapolis: Amidon Asso- cIates, Inc., 1963), p. 10. 71 to determine the level Of teacher questions. It differs from most others in that it distinguishes between several levels of "Open" questions, including specifically between questions designed to elicit the process skills of observing, inferring or hypotheses forming, and testing inferences or hypotheses. Since in this study the lesson taught by all teachers concerns objectives directly related to the develop— ment of such process skills as were mentioned under the ques~ tion categories, the instrument was ideally suited for use in this study. A cepy Of the instrument appears in Appen- dix H. Fischler and Zimmer further described the use of the instrument, including ground rules.1 Fischler and Anastasiow reported little difficulty in scoring the questions types in one study; however, relia— bility estimates were not made.2 Moon reported reliability coefficients with a mean of 0.76 over a number of measures. His calculations were made using Scott's technique and for a sample of inservice teachers teaching second grade children.4 For the present investigation, an assistant prepared a written record from audiotape recordings Of all questions asked by teachers during each of their two sessions with lAbraham S. Fischler and George Zimmer, "The DevelOp- ment of an Observational Instrument for Science Teaching," Journal of Research in Science Teaching, V (1967-68), 127- 137). 2Fischler and Anastasiow, op. cit., p. 283. 3Moon, Op. cit., p. 74. 4Amidon and Flanders, op. cit., p. 10. 72 pupils. Each usable question was numbered consecutively, beginning with one for each transcript. Next, another assistant was employed, who underwent a training period con— sisting of categorizing questions while listening to each audiotape again. The assistant referred to the written record of questions if necessary, for purposes of additional clarification. Ground rules and other references were con— sulted during the training period, which continued for some four hours. TO facilitate rapid feedback, several estimates of Scott's coefficient were made during training using the shortcut method described by Flanders.l By the end of the training period, Scott's coefficients Of 0.75 and above were reached consistently. Finally, the audiotapes were scored by making a tally record of question types for each category. Intraobserver reliability estimates with a mean of 0.85 were made during the scoring period by using Scott's technique and by repeat— ing the scoring procedure already described for four randomly selected audiotapes. Calculations of Scott‘s coefficients for original and recoded audiotapes appear in Appendix I. Science--A Process Approach: Pupil Competency Measure.--The Pupil Performance Score for any teacher was obtained by finding the mean score that her pupils achieved on the Compenency Measure associated with the teaching lNed A. Flanders, "The Problems of Observer Training and Reliability," in Interaction Analysis: Theory, Research and Application, ed. by Edmund Amidon and John Hough (Reading: Addison-Wesley Publishing Company, 1967), pp. 158- 166. 73 materials of the exercise taught to all children. The exercise was: "Inferring 5, Part D, Science—~A Process Approach." The pupil individual competency measures were devel- oped primarily for purposes of curriculum evaluation. For each lesson Objective, pupil tasks in terms of easily Observ— able behavior were devised. Response categories are limited to "yes" or "no" on the five—task instrument. Testers read the questions tO the pupils and they either attempt to per— form the behaviors required Or verbally give answers to the questions asked. Responses are scored on evaluation sheets. Validity is face or natural. The develOpers of Science--A Process Approach planned that 90 per cent of all the objectives of the program would be met by 90 per cent of the pupils participating when the pupils had been taught the various parts and exercises Of the program in the suggested sequence. Data collected for the curriculum evaluation pertaining to the exercise chosen revealed that 88 per cent of the pupils tested achieved 90 per cent of the objectives of the Competency Measure. Interobserver reliability coefficients utilizing per cent of agreement between each Of two observers were calculated for eight pupils. The mean per cent of agreement recorded was 78. A table of scores for two Observers and interobserver per cent of agreement for scoring pupil com— petency measure(s) Inferring 5, Part D, Science——A Process Approach appears in Appendix J. 74 Experimental Design The study was conducted using a pretest—posttest comparison group design. As such, it is similar to the pretest-posttest control group design described by Campbell and Stanley.1 Opportunities for randomization to treatment groups were present and were utilized in the study. Diagrammatically, the design may be depicted: R 01 XA 02 R 03 XB 04 Thus, the basic Campbell and Stanley design2 becomes a com— parison group design, but including an independent variable, "Initial Process Level" used as a blocking variable. Figure illustrates the design Of the study. The experiment comparing instructional types was replicated in each of the seven schools used in the study in order to effect control. Because data based on pupil scores were collected on only 16 of the teachers, eight from each treatment group, and these in Dalhousie and Ralph Maybank schools, it was necessary to include in the design provision for two separate comparisons. The first of these utilized the entire sample of 40 teachers for purposes of comparison Of the two treatment groups on four Of the criterion measures 1Donald T. Campbell and Julian C. Stanley, Ex eri- mental and Quasi—Experimental Designs for Research (Chicago: Rand McNally and Co., 1966), p. 13. 2 Ibid 0 of interest, omitting specifically the pupil performance variable. The second included only the subset of 16 teachers, and involved only the mean outcOme for each teacher on the pupil performance data gathered from the children taught by a given teacher. Mode of Preparation T T m A B m m 0 8'4 High Q; F*g (Schools (Schools rd 0) 1-7) 1-7) '35-?) .H Low :2 H Legend: Mode TA = Process Skills Method TB = Process Questioning Strategies Method School - Dalhousie l 2 - Ralph Maybank 3 - St. Avila 4 — Aggassis Drive 5 - General Bying 6 - St. Norbert 7 - Montrose Figure 3.——Design of the study. Procedures Of the Investigation Preliminary Arrangements Access to schools and classes of third grade children was arranged informally during December, 1970, through 76 personal or telephone contact with building principals of the seven schools involved in the study. Permission was granted to the writer to meet individually with the class- room teachers with the intent Of arranging suitable teaching and testing schedules for January and February, 1971, subject only to certain limitations of school and teacher timetables and teacher wishes in the matter. A letter explaining the schedule needs of the study, along with a description of some of the lesson materials to be used, was drafted and copies delivered to the various principals and teachers involved, during early January, 1971. (See Appendix K.) Where there were questions about the schedules, materials, and/or procedures these were answered. In the next phase, preparatory to the beginning of the study itself, lesson materials for use with S--A.P.A., "Inferring 4," Part D were prepared. "Inferring 4" was subsequently taught to the selected classes according to schedule. Fourteen students in the Faculty of Education, who had already received train— ing in a science methods course, assisted the writer and participating classroom teachers in this phase. Each class was assessed by the General Appraisal measure after the "Inferring 4" exercise had been taught. Since there was no individual assessment made of pupils at this stage, it would be apprOpriate, from the results of the appraisals, to say only that in general the Objectives of the lesson prerequisite to the one to be taught under experimental conditions had been met for all classes. 77 Collection of the Data All subjects were assembled on January 18, 1971, and completed the Attitude Toward Teaching Science and the Science Process Test for Elementary School Teachers instru— ments. During their next meeting with the writer, the first of a series of regularly scheduled science methods classes, subjects were informed of the following: 1. That their next "class" would consist of each person teaching some five third grade children in a group in a school setting according to a set of objectives, suggested activities, and materials about to be dis- tributed. These materials consisted of "Inferring 5," Part D materials, excluding specifically the Appraisal and Competency Measure for the exercise. 2. They would be allowed during the remainder of that science methods class period to look at the printed and other materials about to be distributed. 3. A11 lessons with pupils would be audiotape recorded, and that portable recording facilities would be provided. It was felt that at this stage some anxiety had been introduced. For that reason, the researcher encouraged questions and attempted to answer fairly those few questions that were raised. Schedules for the teaching of pupils in schools were arranged with the teachers, with the stipula— tion that whether their scheduled time coincided with science 78 methods class or not, they would not meet as an entire class until Wednesday of the following week. A teaching schedule was drawn up, which paired each member of one treatment group with a member of the other. Choices of pairs were made arbitrarily, with the only con- dition being that the teacher's class schedule allowed her to leave the university for a long enough period to travel to and from her school and to complete the approximately one-half hour of teaching once at the school. On January 22, 25, and 26, 1971, the initial in- school phases of teaching were completed according to sched- ule. Audiotapes of approximately 15 minutes duration were made of the teaching episodes in each case, and were col- lected and stored for later analysis. From three to five days, respectively, after teaching, S.--A.P.A. "Inferring 5," Competency Measures were admin- istered to the pupils of a previously described total of 16 teachers in two large schools in the sample, namely Dalhousie and Ralph Maybank. The testers, under the direction and with the assis— tance of the writer, presented the appropriate test stimuli to individual pupils. Scores were recorded for later com- putation of group mean of pupil scores, which would serve as the dependent measure of “pupil performance" for teachers. Interobserver reliability coefficients using per cent agree— ments were calculated as earlier reported (Appendix J). 79 Beginning January 27 and ending February 5, treat- ments were administered to the two groups in accord with the treatment objectives and descriptions presented earlier in this chapter. The two groups worked to meet their objectives in separated classrooms at the Faculty of Educa— tion, University of Manitoba. Since the modular treatments were in self-paced form, each teacher could proceed at her own rate through the work, thereby minimizing the effect of any possible differential instructor bias in favor Of one or the other of the groups. Each teacher received feedback based on task appraisals or rating sheets for her respective treatment condition. These measures were used as formative evaluation, and thus were included in the treatment effect. At the conclusion Of the treatment phase, all sub- jects completed the Attitude Toward Science and Attitude Toward Different Methods Of Teaching Science instruments. These were administered with teachers of the two treatment groups together in a single room. Teachers were informed that they would repeat the teaching procedure of several weeks earlier using identical equipment and materials, but to different groups of third grade children. Schedules were arranged as before, and teachers subsequently returned to the schools they had visited earlier, this on February 8, 9, and 10. Here they taught a new group of pupils in accord with the design and procedures already described in this chapter. Audiotape records were again made for each teacher. The pupil Competency Measure was administered for pupils in 80 the same two schools as before, and using the same methods as already described. All scores were recorded for later analysis. Interobserver reliability estimates were made and the scores, percentage agreement between observers, and mean per cent of agreement were calculated (Appendix J). Analysis of the Data Instruments administered to teachers to measure initial process skill and attitudes toward teaching science Of teachers were first scored. Pupil individual competency scores were gathered from the pupils of the subset of 16 teachers for whom pretest and posttest instruction pupil scores were assessed. Interaction analysis using the I.A.S.T. was next performed. Raw data for the analysis of the two audiotape Observations of each teacher were submitted for computer analysis to determine the per cent of class time devoted to each of the several behaviors assessed by the instrument. Ratios Of combinations of behaviors were also calculated, and these, the I.D. and the S.T., were later used in the testing of hypotheses. A content analysis of the audiotapes was performed to categorize questions accord— ing to the method already described in this chapter. Two attitude measures made after instructional treatment were scored. The data gathered were punched on computer cards for analysis. A correlation matrix was constructed and included all Of the independent and dependent variables used in the 81 study. It also included values for the percentages of each of 14 categories of behavior that teachers used in their initial and final teaching of pupils. The relationship of initial process skill and initial attitudes toward science to initial teaching behaviors, as well as other relation- ships Of interest, were determined from the results of the correlation matrix. One other computer analysis that was not prOposed in the initial design, a separate multivariate analysis of covariance, was also conducted. It made instruc~ tional treatment, high versus low initial attitudes, and interaction effect comparisons. This additional comparison was useful to interpret better a question relative to effect of initial attitude tO subsequent measures of teacher atti— tude and behavior. Hypotheses pertaining to the effect of instructional treatment type, initial process level, and differential effect of treatment on level were tested. Two separate two- way multivariate analyses of covariance were used to test hypotheses associated with attitudes of teachers (two vari- ables), and teaching behaviors (three variables). For the subset of 16 teachers, a single two-way univariate analysis of covariance was used to test hypotheses associated with pupil performance as a result of teaching. In all analysis of covariance tests, scores on preinstructional tests were used as the covariates. The extent Of changes in attitude, behavior, and teaching performance over the instructional period were 82 determined by performing t-tests of differences between the means for measures of activity before and after instructional treatment. Differences were assessed in this way both for the group of teachers as a whole and for each of the two groups which underwent different instructional treatment, and also for the subset Of 16. Hypotheses The following null experimental hypotheses were tested at d = .05: Hypothesis 1: There are no significant differences in the mean vectors of postinstructional scores Of attitudes (ATS, ATDMTS) between the two instructional groups nor between levels of initial process skill nor dif— ferentially between treatment and level. Symbolically: HO: ul ui for each Of treatment, = level, and interaction I u2 u2 effects 0 I H1. ul ul f u2 u' Legend: Instructional Groups 1. Process Skills 2. Process Questioning Strategies Initial Process Levels 1. High Initial Process Skill 2. Low Initial Process Skill u = ATS = Attitude Toward Teaching Science u = ATDMTS = Attitude Toward Different Methods of Teaching Science Hypothesis 2: 83 There are no significant differences in the mean vectors of postinstructional teaching behavior scores (QT, ID, ST) between the two instructional groups nor between levels of initial process skill nor differentially between treatment and level. ' Symbolically: . I I I.) HO. [Ell ul _ . for each of treatment, u2 ‘ uz level, and interaction I un u3 effects )- L J» - . 1 H1: ul [u' I u2 # u2 u u' L :31 l- 3.1 Legend: Instructional Groups 1. Process Skills 2. Process Questioning Strategies Initial Process Levels 1. High Initial Process Skill 2. Low Initial Process Skill u = QT = Question Types ratio u = ID = Indirect to Direct teaching behavior ratio u3 = ST = Student Talk to Teacher Talk ratio Hypothesis 3: There are no significant differences between measures of teacher attitude (ATS) or behavior (QT, ID, ST) collected prior to and after instructional treatment. Symbolically: HO: u1 = ui for each measure I H1. ul # ul 84 For the subset of 16 teachers for whom Pupil Performance scores were available, the following hypotheses were tested: Hypothesis 4: There are no significant differences in the mean postinstructional Pupil Perform— ance measures according to the instruc- tional method used, or according to level of initial process skill held by the teacher or differentially with instruc- tional type according tO level of initial process skill. Symbolically: HO: u = ui for each of treatment, level, and interaction 0 I Hl' u1 I u1 effects Hypothesis 5: There are no significant differences in Pupil Performance score prior to and after instructional treatment. Symbolically: Ho: u1 = u [—4- H1: ul < u H'- Summary This chapter included the method Of selection and the description of teacher and pupil subjects used in the study. The self—paced instructional modules which were used were described, as were the several instruments that were used to make the various measures. The research design, procedures of the investigation, including preliminary arrangements and collection of the data, were described. 85 Finally, the procedures for the analysis of the data and a statement of the hypotheses tested completed the chapter. CHAPTER IV ANALYSIS OF DATA AND FINDINGS Introduction The data that will be used to answer the questions raised in Chapter I will come in part from a descriptive account of pre— and postinstructional teacher characteris— tics, in part from an analysis Of correlations between a number of variables, as well as from a testing of the hypotheses first stated in Chapter III. Presented in this chapter are a description Of the teacher and pupil samples and a description Of the cell com- positions for each cell in the design selected for use in the study. Questions asked or hypotheses that were tested, along with a presentation of data that were analyzed in relation to them, follow. The Sample The 40 teachers and 370 pupils involved in this study are characterized by the data presented in Chapter III and Appendix C. The method Of selection of teachers and pupils for inclusion in the sample was presented in Chapter III. From the entire sample, 16 teachers and 148 pupils were selected, as described in Chapter III, for a Special 86 87 extended study. The extension related to Hypotheses 5 and 6 first stated in Chapter III, and considers the important variable of pupil performance. Cell Compositions Figure 4 is a description of the cell compositions for both 40 and 16 teacher subjects, as described by the two independent variables Of instructional type and initial process skill, each variable having two levels. These com— positions relate tO the testing of the major hypotheses that follows in this chapter. Process Questioning Process Skills Strategies Cell #1 Cell #3 High For 40 Ss (For 1685) Initial 11 (5) 11 (6) Process J Level 1 Cell #2 Cell #4 f Low ‘ 9 <3) 9 <2) ; Iiigure 4.--Cell compositions illustrating total number of teacher subjects per cell of the 2x2 fixed effects design. Entering Characteristics Of Teachers (maestion 1: What were the entering characteristics of teach- ers (as listed and operationalized in Chapter I)? 88 Entering characteristics were those measured before instructional treatment began. These included both paper and pencil measures of Attitude Toward Teaching Science (A.T.S.) and science process Skills as measured by the Science Process TeSt for Elementary School Teachers (S.P.T.). Also included were a variety Of teaching behaviors, namely Question Types ratio (Q.T.), Indirect to Direct Behavior ratio (I.D.), and Student to Teacher Talk ratio (S.T.). The teaching behaviors were measured from audiotapes of teacher performance. Table 1 provides means and standard deviations for the five variables of interest, as well as for the entire Instrument for the Analysis of Science Teaching (I.A.S.T.) categories from which the I.D. and S.T. variables are derived. Special comments regarding the use of category 14 have already been made in Appendix F. Since the use of the category in this study was entirely to mark beginnings and endings of teaching sequences, no data regarding the use of the category have been included. Relationships Between Entering Characteristics and Initial TeachIng Behaviors Question 2: What were the relationships between a) initial attitude toward teaching science (A.T.S.) and b) knowledge of processes of science (S.P.T.) to: the initial teaching behaviors of the preservice teachers during science teaching with pupils 89 Table 1.--Means and standard deviations of entering character- istics Of teachers. Variable Mean Standard Deviation S.P.T. 18.35 5.246 A.T.S. 7.648 0.591 Q.T. 0.944 0.060 I.D. 1.201 0.464 S.T. 0.452 0.123 I.A.S.T. Categories #1 0.048 0.000 #2 0.653 0.744 #3 7.699 2.393 #4 16.101 4.856 #5 5.935 2.304 #6 15.127 6.102 #7 0.357 0.516 #8 10.245 7.607 #9 18.572 4.443 #10 0.994 0.874 #11 0.351 0.304 #12 24.074 11.088 #13 0.009 0.000 .Legend: A.T.S. = Attitude Toward Teaching Science S.P.T. = Science Process Test for Elementary Teachers Q.T. = Question Types ratio I.D. = Indirect to Direct behavior ratio S.T. = Student Talk to Teacher Talk ratio For I.A.S.T. Categories see Appendix F. 90 but before the commencement of science methods course instruction? Table 2 lists the correlations of attitude toward teaching science (A.T.S.) and knowledge of processes of science (S.P.T.) with initial teaching behaviors. Table 2.--Re1ationship between two entering characteristics and initial teaching behaviors. Initial Teaching Entering Characteristic Behaviors A.T.S. S.P.T. Q.T. 0.026 0.264** I.D. -0.078 0.113 S.T. -0.226 0.237 I.A.S.T. Categories #1 0.000 0.000 #2 -0.315* -0.095 #3 -0.163 -0.136 #4 0.163 0.090 #5 -0.208 0.049 #6 0.172 -0.173 #7 —0.024 0.191 #8 0.287** —0.203 #9 -0.172 0.222 #10 -0.141 0.296** #11 0.166 —0.070 #12 -0.204 0.099 #13 0.000 0.000 *Significant at p = .05 **Significant at p = .10 Legend: A.T.S. Attitude Toward Teaching Science S.P.T = Science Process Test for Elementary Teachers Q.T. = Question Types ratio I.D. = Indirect tO Direct behavior ratio S.T. = Student Talk to Teacher Talk ratio For I.A.S.T. Categories see Appendix F. 91 The data reveal that initial positive attitudes toward teaching science are negatively correlated with teacher "praise" (I.A.S.T. category 2) at the p = .05 level, and positively with "teacher—controlled silence" (I.A.S.T. category 8) at p = .10. Other correlations Of initial atti— tude with behavior are small. Initial science process skills appear to be nega- tively correlated, beyond p = .10, with initial attitudes toward teaching science. There is a low correlation, beyond p = .10, of process Skill with question type preference during initial teaching. For correlations of initial science process skill with the individual categories of the Hall instrument (I.A.S.T.), only category 10 ("student questions") reaches the p = .10 level. It is a positive correlation. The remaining correlations of process skill with other char— acteristics and behaviors are small. Introduction to the Testing of Hypotheses The remaining questions asked in Chapter I were answered largely from tests of hypotheses. The mean pretest scores for the several independent variables, divided by instructional type and initial process skill level, and including pooled within standard deviations, appear in Table 3. Similarly, the corresponding posttest mean scores and standard deviations appear in Table 4. The following sections provide data sufficient to answer Question 3 Of Chapter 1, through an analysis of two 92 A.B.mv oflpmm Mame Hosomme ou Dampoum A.O.HV oflumm Hofl>mzmm pomuflo ou uomufich A.B.OV Owumm mmmhe coflumwoo H A.m.e.«v mocoflom maflaomme pum3oe opoufluum m# V# mw at mapeeee> mapeepe> esneepe> manoeum> "pcmmmq maa.o omv.o omo.o mnm.o GOHDMH>OQ pumpcmum cflnuflz Uwaoom m m emm.o eem.H emm.o mem.e son mmamowwmwww o o o o mflm . . mmm o mmm H mmm o mmm h z . mmmooum www.o mam.o mmm.o 0mm.h Boa maaflxm mee.o HmH.H mmm.o emm.n Baez mmeoonm m¢ .um> V# .um> me .Hm> H¢ mabmflum> Hm>oq coflpoouumcH mmoooum mo posses mnofl>w£om genomes mocsuwuud genomes aoHDHcH mmHOUW mHflwflHM> HGQUGOQHCfi 3M0: .momosuommn Mo memmamcm Hmuo>om 039 CH pom: mouoom amouonm on» mo mooHusH>mp puwccmum pom mcmozui.m manna 93 A.B.mv Owumm xame Honomoe OD pampoum I.D.HV oHpmm Hoa>mzmm Domuflo on DOOHHUGH A.B.OV ofiumm mmmme coflumoso “.m.B.E.Q.B.¢V cocoaom mcflnomoe mo moonumz DOOHOMMHQ pum3oa mpsuflpud “.m.e. manmepe> eflpmepe> espeepe> wannaum> "pcmmoq mma.o mme.o Neo.o emm.o ome.o peepee>eo epepemum peeps; eeaooe m mm mmm.o moa.H mam.o mme.aa mew.» zoo mewwoawmmwm mam 0 «Am A mes 0 com an ego m Beam mweoope Hme.o eoo.a mam.o eem.HH mme.e zoo maaexm aee.o aem.a mem.o eee.aa ome.e Beam mmepppe me .pe> es .pe> me .ue> «I .pe> He .pe> He>eo coheosppmee mmmooum mo vogue: mwofl>msom ngomme mopsuflupm Honomoe aneuficH mouoom amouumom one: .cowuoouumcw mo moonuoe OBD map MOM moflumflumuomnmzo Homomou pmmuumom on» NO mcoflnsfl>mp peopcmuw pom mcmmzul.e manna 94 hypotheses first stated in Chapter III. In order to group variables which were conceptually similar, two separate multivariate hypotheses were stated and tested, grouping attitudinal variables and teacher behavior variables, respectively. To facilitate reporting of effects of instruc— tional type, initial process level, and interaction of type and level, however, the hypotheses have been regrouped in this chapter for the clarity and convenience to the reader. Figure 5 describes graphically the manner of stat— ing of hypotheses in Chapter III, along with the regrouped form Of Chapter IV. The Effect Of Instructional Type The effects of instructional treatment type may be considered by analyzing the data pertaining to the follow— ing hypothesis: There are no Significant differences in mean post— instructional scores of A) teacher attitudes (A.T.S., A.D.M.T.S.) nor B) teacher behaviors (Q.T., I.D., S.T.) between the two instructional groups (Process Skills and Process Questioning Strategies). The data presented in Table 5 Show that the F—ratio for the multivariate test of equality of the mean vectors tested in Hypothesis l.(A) was equal to 1.412. This ratio generates a p—value less than 0.258. Since the alpha level had previously been established at .05, the multivariate null hypothesis was not rejected. The two univariate analy- ses of covariance associated with the multivariate test are also listed in Table 5. Their separate contributions to the 95 Method of Grouping and Numbering In Chapter III In Chapter IV Hypothesis 1 (Relating to Attitudes) 1. a) Treatment Effects b) Level Effects c) Interaction Effects Hypothesis 1 Treatment Effects A) Relating to attitudes B) Relating to behaviors ypothesis 2 Hypothesis 2 Level Effects A) Relating to attitudes (Relating to BehaVlors) B) Relating to behaviors 2. a) Treatment Effects Hypothesis 3 b) Level Effects Interaction Effects A) Relating to attitudes 0) Interaction Effects B) Relating to behaviors Figure 5.--Regrouping Of hypotheses. 96 A.B.mv oflumm Mame Honomme ou ucmpsum u m manmflum> A.D.HV oflumm HOH>mzwm powuflo on Doouflch u v manmflum> A.B.ov oflpmm momme coaummso u m mannaum> A.m.B.Z.Q.B.€V cocoflom mcflnomms mo mponuoz DGOHOMMHO pumzoa mpsufluum n N mannaum> A.m.9.¢v mocmflom anemones pum3oe opsufluum u a maomwum> "pammoq .memeepoese . . .ue Hana mama Nwm o mma o m > 4>OUZ¢D IHM>HDHSE may >v>.o moa.o v .um> ¢>0024D powwow no: op . . .Hm no: meow moam> mandoocmuaseflm -e pee eoeem oes.o Hme.o m pee .e .m .pe> muofl>mcmm genomes ¢>ouz¢2 Amva mmn.o moo.o m .um> ¢>ouzas . Ae>oozmoc mmmflflpmmwm mmo.o mmm.m H .um> mocmanm>oo mo mam lum>flpaofi on» Imamcm ODMHHo>HcD powwow Doc op A¢>OUZEZV .mo.um pomoxm mamsoocmuaseflm dogmaum>ou no: meow moam> mm~.o mHv.H m .Hm> pom H .um> mo mammamce um ecu mocflm , mopsufluud Honomoa oumflum>flpasz Adva coflmfiomo can moam>lm owummim pmumoe moansfluo> posuoz amoaumfluoum memosuommm Hm>mq c .muofl>mnon pom mocsufiuum Honomou How Amoflmoumuum Hmcofluosuumcfl mSmHm> maawxm mmoooumv mama Hmcofluoouumcfl mo somwnmmEOOIl.m OHQMB 97 total effect of instructional treatment on teacher attitudes, however, should only be assessed where Significance is found for the multivariate case. The data in Table 5 further reveal that the multi— variate analysis of covariance performed to test Hypothesis l.(B) yielded an F-value of 0.421 and a p—value of 0.740. The multivariate hypothesis was not rejected at the p = .05 level. The F—ratios and p—values of the associated univar— iate hypotheses are listed for reference as before. 1 When both tests Of treatment effect are considered together, the reported data reveal that there were no effects on the several teacher characteristics that may be attrib— uted to differential treatment effect. The Effect of Initial Process Skill Level The effect of initial process skill level on subse— quent teacher behavior may be determined by examining the data pertinent to the following hypothesis: There are no significant differences in mean post— instructional scores of A) teachers' attitudes (A.T.S., A.D.M.T.S) nor B) teacher behaviors (Q.T., I.D., S.T.) between levels of initial process skill (High and Low). The data presented in Table 6 Show that the F—ratio for the multivariate test of equality of the means for both teacher attitude measures considered simultaneously is 1.540. This ratio generates a p—value of less than 0.229, not sig- nificant at the p = .05 level. The decision was not to reject the multivariate null hypothesis. The F—ratios and p-values of the two univariate hypotheses associated with 98 A.9.mv oflumm xame umgomms ou ucmpsum u m manmflum> fi.o.Hv oaumm H0fi>mnmm uomuflo ou uomuHUcH u v manmflnm> A.B.OV oflumm momma cowummso n m wanmflum> “.m.s.2.o.a. A.m.B.¢v moamflom magnomms pamBOB mpsufluud u H manmflum> "Ucmmmq .uxmu ca ---muwmmmm£uommn- . . .um mumwum>flcs van o mom a m > <>ooz <>oozmo uguo a Hand mum . . . nflum>flpasfi map mmo 0 sun m m um> ¢>ouz¢a powwow .mo.um wawsomcmuaseflm mpwmoxm msHm> mvo.o nmm.m m can .v .m .Hm> In on“ mocflm muofl>mnmm umnomme ¢>00242 Amvm vnm.o nmmo.o m .um> <>ouz¢a .mammnuommz was: mnma A¢>oozHuHsE mnu mmo o omo m H um> mmcMflumwooamo mam powwow no: 00 I A c4 um.um>HCD .mo.um cmmoxm A¢>oozazv boa mmop msam> mamsomcmuaseflm mocmfium>oo um may moaflm mmm.o ovm.a m .um> can H .um> no mumsflmca mopsufluud nonomma manaum>fiuasz Amvm :ofimwomn can msam>um oflummum wmumma mmanmflum> wonumz Hmoaumflumum mummnnomsm Hw>mq a .muow>mnmn can mmpnuwuum Horommu u0m A30H paw nmflnv mam>wa HHme mmmooum Amanda“ mo acmflummsoouu.m manna 99 the same test also are listed in Table 6 for convenient reference. The data in Table 6 further reveal that the multi- variate hypothesis performed to test Hypothesis 2.(B) yielded an F-value of 2.94 and a p-value of 0.049. The multivariate hypothesis of no difference of mean vectors was rejected at the p = .05 level. The multivariate statistical model used allows for the examination of the univariate hypotheses associated with the rejected multivariate hypothesis in order to determine possible sources for the overall differ- ence in teacher behaviors attributed to the effect of instructional treatment on initial process skill level. The univariate test performed to analyze the difference between teacher behaviors associated with question type ratios results in an F-ratio of 5.774 and a p—value of 0.022 (Table 6). The direction of the difference reveals that the ratio of high to low level question types (Variable 3) is higher for teachers of high initial process skill level. Further examination of the two remaining associated univar— iate hypothesis shows no differences at the p = .05 level. However, the p-value of 0.07 associated with Variable 4 (student talk to teacher talk ratio) would suggest that part of the overall significance of the multivariate hypothesis may be due to slightly higher indirect to direct behavior ratios for teachers of high initial process skill level. The remaining univariate hypothesis associated with teacher behavior had a p—value of 0.214 (Table 6). While little 100 importance may be attached to the contribution of this dif- ference to the overall effect on teacher behavior, the direction again is such that higher initial process skill levels may result in higher student talk to teacher talk ratios. Figure 6 shows a graph to illustrate teacher behav- iors according to level of initial process skill both before and after instructional treatment. It demonstrates how, for each of the three variables considered, slight initial differences, not significantly so at the p = .05 level of significance, increase between high and low initial process level groups to significant differences after instruction has occurred. The differences between means of the high and low initial process skill level groups for the several post— instructional teacher behavior variables should be examined in relation to the standard deviations for each variable. Table 4 provided a list of variables, accompanied by pooled standard deviations for each. These standard deviations can be considered in relation to differences between means of the postinstructional means for the several teacher behavior variables at each of the high and low initial process levels. Considering the variables in the order of Figure 6, these differences then amount to approximately 1.0, 0.59, and 0.75 standard deviations for the Q.T., I.D., and S.T. variables, respectively. When considered together in a multivariate test of the null hypothesis and given the number of subjects lOl Means YEEEEElEE Preinstruction Postinstruction i fizz—’7“... .d (0.954) (O'iil) Legend: ‘ \ High Initial \\ Process. Q-T _ \ \ ------ Low Initial .\ Process _ \ Q.T. = Question Types \ Ratio \. ._ 40.896) I.D. = IndiIECt to 4 Direct Behavior Ratio ~ S.T. = Student to i Teacher Talk (1.441) Ratio I.D. '- c (1.259) C\ ‘ d (1.130) ‘ ‘ ~ \ ‘--o (1.055) _) x (0.502) _ (0.489) SOT. . (0.410) .1 (0.407) ’ __ __x Figure 6.--Pre- and postinstruction means for measures of teacher behavior for three variables measured from teachers of high and low initial process levels. 102 in the study, such differences were sufficiently large to, collectively, give reason to reject the null hypothesis. When both tests of effect of level of initial process skill are considered together, the data reveal that only in those teacher characteristics associated with teacher ver— bal behavior are there statistically significant differences. Specifically, the differences appear to lie in the level of questions asked, with teachers of high initial process levels having higher question type ratios than their low counterparts. The Differential Effect of Instructional Type on Level of Initial Process Skill (Interaction Effect) The differential effects of instructional type on level of initial process skill may be considered by analyz- ing the following hypothesis: There are no significant differences in mean post- instructional scores of A) teacher attitudes (A.T.S., A.D.M.T.S.) nor B) teacher behaviors (Q.T., I.D., S.T.) differentially between treatment and level of initial process skill. The data presented in Table 7 show that the F—ratio for the multivariate test of equality of the mean vectors tested in Hypothesis 3.(A) was equal to 0.207. This ratio generates a p-value less than 0.814. The multivariate tlii’pothesis was not rejected. The associated univariate F-ratios and p-values are also listed in Table 7 for ref— erence. 103 A.e.mv A.D.HV oHpmm uoH>mnmm pomHHo ou uomqucH u w mHQMHum> oflnmm mea umgomme on ucwwzum u m memHnm> A.B.Ov oHumm momma coHummso u m mHQmHHm> A.m.B.E.Q.B. A.m.9.dv mocmHom mcHnommB pumSoe mpsuHuud u H mHQMHHm> "pammmq .mHmmzuommn mmm.o chH.o m .um> m>ouz¢b HH2H mpMH mHm.o NHm.H v .Hm> ¢>OUZ¢D lum>HuHse map . . . powwow uoc op mmm o ham 0 m um> ¢>OUZ¢D .mo.nm Ummoxm mHmsomsmeDEHm nos mmow msHm> anm.o oso.o m can .4 .m .nm> IQ on» moch mu0H>mzmm umcomme <>Ooz¢z Amvm nmm.o mmmH.o m .um> ¢>OUZ¢D m..mm.mmmm 14>ooz.pv HH . moo.o onm.o H .um> mocmflum>oo mo mam Inm>HquE map > I Hmcd muwaum>asb powwow nos op . . .mo.um ammoxm la>oozazv no: mmop msHm> mHmdomcmuHSEHm mocmHHm>ou um mcu moch «Hm.o nom.o m .nm> paw H .Hm> mo mHmmHmcd mopsqupd umgomme mumHnm>HuHsz Amvm conHomo 6am msHm>Im oflummsm wmumma mmHanHm> wonumz HmoHumHnmpm mflmmnuoasm Hm>mH d .A30H paw annv Hm>mH HHme mmmooum HMHquH paw HmmHmmumnum mchoHummnq mmmooum mdmum> wHHme mmmooumv mmwu HmcoHuosuumcH cmmzumn pommmm coHuomumucH mo acmHummEoolu.h anme 104 The data in Table 7 further reveal that the multivar- iate analysis of covariance performed to test Hypothesis 3.(B) yielded an F-ratio of 0.670 and p—value of 0.577. The multivariate hypothesis was not rejected at the p = .05 level. F-ratios and p-values of associated univariate hypotheses are listed. When the several tests of interaction effect are considered together, the analysis of the data reveals that there were no effects on the several teacher characteristics that may be attributed to differential effect of instruc— tional treatment according to level of initial process skill. Effect of Initial Attitude Levels on Selected Postinstructional Characteristics An additional multivariate hypothesis, not included in the original design, was tested and is reported in this section. For this section, the sample of 40 teachers was divided about the median into High and Low Initial Attitudes Toward Teaching Science. The data and analyses used to examine the question of associated teaching behavior came from two sources. First, a multivariate and univariate analysis of covariance was used to determine instructional treatment effects based on the five variables of teacher attitude and behavior that were considered throughout the study for the sample of 40 teachers. The effects of instruc- tional treatment according to level of initial attitude toward teaching science were also calculated, as were inter- acting effects on attitude and behavior of treatment type 105 and initial attitude level. Second, data resulted from an intercorrelation matrix, for which correlations and p—values were computed for all dependent, independent, and covari- ables, as well as for the measures for individual categories of teaching behavior as determined by the use of the I.A.S.T. (Appendix F). Table 8 illustrates the abbreviated results of the multivariate and univariate analysis of covariance. The analysis suggests that there are no overall significant effects on any of the group of five variables that are associated with instructional treatment, level, or interaction. However, since this portion of the study was included after the original design was established, and no hypotheses were actually being tested, it was feasible to inspect the univariate tests for additional insight. Accordingly, the analysis suggests that attitude toward teaching science (A.T.S.), not surprisingly, still differs between levels of high and low initial attitude toward teaching science even after instruction. Finally, for the student to teacher talk ratio (S.T.), an interaction effect is suggested. Further inSpection of the data suggested that the effect might be caused by the Process Questioning Strategies module being most effective for teachers of low initial attitude toward teaching science. Based on inspection of the correlation data, the following additional observations were made. Initial atti- tudes toward the teaching of science, surprisingly, show a negative correlation at the p = .05 level with 106 mOflmflOm l.a.mv oHumm mea umaomme on ucmwsum u m A.D.Hv oHumm HOH>mnmm HomuHo ou uomqucH u v A.a.ov oHumm mmmse aoHummso u m A.m.e.2.o.e.av maHnommB wo moonumz pcmHmHMHQ pum309 mpsuHuud u N l.m.e. mHanum> mHQMHHm> oHQMHum> mHnMHHm> "Ucmmmq .mmmm mchwomum may :0 coHumcmmem wuozm Amo.o u m «.mmmmanoas: Hana ..a.mv HFH.o u a mmm.H mcofluomumucH mvaum>HpHDE Hmnm>mm mcu pommmu uoc Ammo.o n m on 6n sHsoz con ..m.e.mq -Homs was .mo. u a pmmoxm uos 0p ANH.o u m mmsHm>um map macaw ..m.e.av mmm.o u a HN$.H muommmm usmEummua COHmHomQ mam mmsHm>lm mmsHm>Im mmsHm>um Hm>mH a muMHHm>HcD muMHHm>HuHDS mHMHHm>Hquz UmuomHmm .muoH>mnmn paw mopsuHuHm umaommu How ABOH paw annv mHm>mH mocmHom mcHnommu UHMBO» mpsuwuum HMHHHQH mo muommmm qu3O£m mUGMHum>oo mo mHmemcm mumHum>Hcs paw mHMHum>HuHUEII.m mHnme 107 postinstructional attitude toward different methods of teach- ing science. This result reveals that those with favorable initial attitudes toward teaching science tend to be more teacher-centered and less pupil-centered in their approach as they get more positive in their attitudes toward teaching science. The data also reveal a small correlation beyond p = .10 of age with initial attitude toward teaching science, but that age by attitude correlation weakens when the post- test attitude is considered with age. Additional Data Related to Treatment Effects This study was primarily concerned with the relative effects of the two instructional treatment types. Since the data revealed no significant differences between treatment types, an examination of means of dependent variables of interest measured both prior to and after instruction was conducted. The following hypothesis was tested: There are no significant differences between measures of teacher attitude (A.T.S.) or behavior (Q.T., I.D., S.T.) collected prior to and after instructional treatment. Table 9 lists the means of those dependent variables for the entire sample of 40 teachers for whom pretests and posttests were available. The values of t-tests performed to help interpret the extent of differences between the means are also listed. Finally, Table 10 lists the mean percentage of each category of behavior in the 14ucategory Hall Instrument for the Analysis of Science Teaching (I.A.S.T.), both prior to and after treatment. Portions 108 1.9.mv oHnmm mee umaomme on ucmvsum n v mHQMHnm> H.Q.Hv 0Humm HOH>msmm uomuHo ou HomuHUGH u m mHQwHHm> A.B.Ov oHumm momma coHummso n N mHQMHHm> H.m.9.¢v mocmwom mcHnommB UHMBOB mpsuHup< u H wHQMHHm> “pcmmmH .mHmmnpommn A+va.o Hmv.o va.o aw wwwwmflwmwwwwwmmmmmw l+vmmflo nmmfla HONHH ms nozuwswwwmw s mmsHm>|u wnu moch Alvmo H mNm o vvm o N# mocmwwwwwm No.Nnu A+va.H mNm.n mvm.h H¢ mo ummplu mconHomo paw mmSHm>1u umom mum ponwmz mHmmnuomwm HGmHHMHIOSHy pmudeonu HMUHumHumam mo. u a pm msam>uu pmumma mmHanHm> .mmHanHm> ucmpcmmmp HSOM How msOmHummEoo HmsoHaosupmcH lumom paw imam mo mdem>lu UmumHUOmmm paw mmuoom ummuumom Ucm ammumnm cmmzll.m mHnma 109 .chumc pmumHH H0H>msmn mo wnommumo sumo meHHOmmU m xHUcmmmfim pmumHsono Doc ooo.o ooo.o MH Alvom.H mnm.mH omH.mN NH Anvmm.H mNo.o 00H.o HH A+Vmoo.o mnm.o mhm.o 0H «H+va.N ooo.HN omw.mH m afllvmm.N ooo.m mnm.m m OHch I O 0 may powwow on on h+vmm o th o com o n Apmscchoov case; mflmmauoasa l+v00.a 000.0H mms.0a 0 HHsc m Hops: I . . . conHomp 03p .No.N «A VHN N th v omm m m AUmHamu mo msHm>lu Hmo «A+va.N mhv.mH omn.mH v Iosuv -HuHHo may ammoxm 1-000.0 000.0 000.0 m mamma Agv mwde>nu pout: cmmzpmn -mfimmw may moaflm luvmm.H mmm.0 000.0 m moamumuuae . I meMHdono uo: ooo.o ooo.o H m0 ummulu No NIH mconHowQ paw mmSHm>lu umom mum mmuommumo ponumz mHmmnuomwm HUmMHmnnozpv pmumHsonu H0a>mnmm .B.m.<.H HMUHumHumum mo u e um . ... . o wsHm>|u B m d H m ammo umm cmmz .B.m.<.H can no mmHuommumo cmmunwnu MOM mGOmHummEoo mo mmsHm>np pmumHoommm can mHoH>mnmn mo unmoumm pmmpumom dam ummumum cmmzll.0H mHQma 110 of the I.A.S.T. data were used to determine the I.D. and S.T. ratios already reported in Table 9, but reporting the several categories which made up the entire instrument had merit, as will be explained later in this section. The data in Table 9 reveal that some differences favoring higher attitudes toward teaching, I.D. ratios, and S.T. ratios were measured after instructional treatment. One other difference showed lower question type ratios were measured after treatment than before. None of these dif— ferences reached the p = .05 (two—tailed) level of signifi— cance. The decision was to not reject the null nypothesis. While this decision was clear, additional examinations of t-values computed for changes in the several categories of the I.A.S.T. from pre— to postinstructional treatment were made. Since the reliability of the I.A.S.T. was established on the entire instrument, but not the separate categories, the following results should best be considered as "inspec— tion." 1 Examination of the results for the various categories of behavior measured by the I.A.S.T. (Table 10) reveal that differences at the p = .05 level (two-tailed) occur in cate- gories which represent some 50 per cent of all the behaviors measured by the instrument. The t-test of differences indi— cated increased percentages at the p = .05 level for Cate— gories 4 and 9, (teacher) "question" and "student statements," respectively. (Appendix F has a more complete description of these and following categories.) Decreased percentages 111 of Categories 5 and 8, (teacher) "direction" and "teacher- controlled silence," are revealed by the t—test at the p = .05 level. Other trends that do not reach the p = .05 level are suggested by the increase in Category 6, (teacher) "initiating substantive information," and decrease in Cate— gory 12, "pupil laboratory activity." Remaining categories together represent only 7 per cent of all activity categorized by the instrument. No appreciable differences resulted in those categories. A summary of a series of univariate analyses of variance is presented in Table 11. Thus when the two instruc- tional types are considered separately, the “process skills" treatment group appeared to use more Category 4 "teacher questions," less Category 5 "teacher controlled silence," and more Category 9 "student statement" behaviors than the "process questioning strategies" group, all at the p = .05 level of significance. Table 11 lists the percentages of each category of behavior for each treatment group both prior to and after instruction. The "process questioning strategies" group revealed a decline at the p = .05 level in Category 8, "teacher-controlled silence." The importance of recalling the threats to internal validity for the results of this section cannot be over- emphasized. History, maturation, and especially test inter— action may be among the factors affecting the results. In addition, reliabilities earlier reported for the I.A.S.T. were calculated using the entire instrument. The separate 112 .HHsa may uomnmu ou ma pHsoz mHmmauomma HHsa m Hmpas :onHomp map .mo. u m pmmoxm mmsHm>Im pmumamHmmp map mocha .gHmuma UmumHH u0H>mama mo muommumo aomm mmaHuommp m xHUammmam .OHmo poa ooo.o ooo.o .OHmo #0: 000.0 NHo.o MH mum.o HHm.ON Nnm.HN mHH.o wa.mH th.mN NH hmm.o nbN.o mmm.o HmH.o Hem.o mom.o HH mmm.o mVN.H Nmo.H mmm.o mNo.H mNm.o 0H HNm.o th.HN mmv.mH ammo.o ov¢.HN www.5H m aNmo.o mmh.m VbH.HH vOH.o mNN.m mHm.m m vmn.o Hmv.o mHv.o mNm.o mhv.c th.o n mNH.o HHm.hH >mm.mH «HH.o oom.mH va.mH m NmN.o NHH.m nmm.m amNo.o mom.v NHm.m m mom.o omm.mH mNo.wH ammo.o mvn.mH th.mH v mHm.o owN.h mnn.n ooo.H va.m wNm.m m mHN.o va.o nnm.o MNw.o mom.o mNm.o N .OHmo uoa mmo.o ovo.o .OHmo uoa moo.o omo.o H msHm>|m umom mum dem>lm umom mum mmuommumo .B.m.¢.H HOH>mamm .B.m.<.H mo usmu Hmm ammz H0H>mamm .B.m.<.H mo ammo Hmm ammz mmHmmumuum mchoHummso mmmooum mHHme mmmooum mama HmGOHuosuamaH .B.m.d.H map mo mmHuom Imumo cmmuuHap How mGOmHummEoo tumom on [mum mo mmsHm>|m pmHMHUOmmm paw mmmu ucmE lummuu HmaoHuosHumaH aomm How mu0H>mama mo pamo umm tumom paw Imum cmszI.HH mHama 113 categories reported here each represent only a part of or contribution to that entire instrument. Correlational Data Regarding Teacher Variables A few correlations have already been considered in previous sections in order to preserve continuity of those sections. Those of major interest that remain will be con- sidered here. The remainder are found in Appendix L. Weak correlations, negative in each case, exist for both pre and post measures of I.D. and S.T. with age. While these correlations are low, reaching p = .10 in only a few cases, the trend remains teacher-centered when age is correlated with several categories of the I.A.S.T. The only two correlations showing significance beyond the p = .05 level, however, should be interpreted cautiously in light of the small proportions of total behavior which they rep— resent. High scores on attitude toward different methods of teaching science generally reflect a pupil-centered approach. Teachers with high scores on the variable do tend to be pupil-centered, as reflected by several correlations at p = .02 and several more at p = .10 with pupil—centered categories of the I.A.S.T. Positive correlations occur at p = .05 when the pretest of question types ratio is compared with pupil ques— tions. This result indicates that more complex questions by teachers tend to result in more pupil questions. Also, 114 that teachers who use more complex questions in the pretest lecture somewhat less is revealed again at the p = .05 level, especially in the posttest. I.D. and S.T. ratios tend to correlate largely with I.A.S.T. categories, which were themselves elements in constructing the ratios. Posttests of I.D. and S.T., however, correlate at p = .05, a result generally consistent with the review of the literature. A few correlations of interest within the I.A.S.T. categories may be best described in general terms. Some evidence at the p = .05 level and beyond suggests that greater use of teacher verbal acceptance or mere restatement of pupil answer correlates with less pupil manipulation of materials and less student—initiated response generally, including fewer student questions. Further correlations indicate that increased verbal and/or other teacher— controlled activity generally results in decreased pupil activity and pupil-initiated response. Finally, of considerable importance is the strong positive correlation of “teacher direction" activity in the posttest setting with pupil manipulative activity. While teacher direction is normally considered a form of direct behavior, this result reveals that for the lesson materials used, teacher instructions were directed at the use of mate— rials, activity that is generally considered to be very much pupil-centered or indirect behavior. 115 Analysis Pertaining to Pupil Performance Tests of effects on Pupil Performance were carried out on a subset of 16 teachers and the pupils taught by those teachers. Those teachers and their pupils have been described elsewhere in the thesis. Tables of preinstruction pupil individual competency measures and Pupil Performance scores associated with each teacher are presented in Table 12, along with data pertaining to cell means and composi— tions. The postinstructional equivalent of Table 12 is presented in Table 13. The Effect of Instructional Type, Initial Process Level, and Differential Effect of Instruction on Level The following null hypothesis was tested: There are no significant differences in mean post— instructional Pupil Performance measures according to A) the instructional method used nor B) according to initial process skill level held by the teacher, nor C) differentially with instructional type according to level of initial process skill. A univariate analysis of covariance using preinstruc— tional Pupil Performance as a covariate for each teacher resulted in the F-ratios and p-values of Table 14. The analysis reveals that the F-ratios for instruc- tional type, initial process level, and instructional type by level interaction are 0.263, 0.002, and 0.326, respec- tively. Associated p-values reflect the low F-ratios and are p = 0.61, p = 0.964, and p = 0.547, respectively. The decision is not to reject the null hypothesis for treatment, nor for level effect, nor for interaction effect. 116 Table 12.--Tab1e of individual pretreatment pupil competency measure scores and mean pupil performance scores for each teacher with cell means and compositions. Initial Pupil Mean Pupil Cell Mean Subject Cell Process Competency Performance Pupil Number No. Level Scores Per Teacher Performance #1 P 1 High 2,1,3,2 2.00 2.944 #5 5,3,4,3,2 3.40 #7 4,4,2,3,4 3.40 #13 1,4,3 2.67 #20 2,4,3,4 3.25 #9 P 2 Low 2,3,4,3,l 2.60 2.323 #10 2,1,4,2,2 2.20 #18 2,2,l,l,5,2 2.17 #24 S 3 High 4,4,3,2,3 3.20 2.800 #25 5,3,4,1,2 3.00 #27 3,3,2,3,2 2.60 #28 3,2,3,5,2 3.00 #31 2,4,l,4 2.75 #36 3,1,2,3 2.25 #21 S 4 Low 3,4,l,3 2.75 3.075 #22 3,3,4,5,2 3.40 Pooled Within Standard Deviation 0.446 Legend: P = Process Skill Treatment Group S Process Questioning Strategies Treatment Group 117 Table 13.--Table of individual posttreatment pupil competency measure scores and mean pupil performance scores for each teacher with cell means and compositions. Initial Pupil Mean Pupil Cell Mean Subject Cell Process Competency Performance Pupil Number No. Level Scores Per Teacher Performance #1 P 1 High 2,3,2,2 2.25 3.034 #5 3,3,4,2,3 3.00 #7 4,5,2 3.67 #13 2,5,4,2 3.25 #20 3,3,2,3,4 3.00 #9 P 2 Low 4,4,3,l,3 3.00 2.693 #10 5,2,3,l 2.75 #18 1,3,2,3,2,3 2.33 #24 S 3 High 3,1,4,3 2.75 3.000 #25 4,1,3,4,5 3.40 #27 3,3,l,4,5 3.20 #28 l,3,2,2,4 2.40 #31 3,3,3,4 3.25 #36 4,1,4,3 3.00 #21 S 4 Low 4,3,2,4 3.50 3.250 #22 5,1,3,2,2,5,4 3.00 Pooled Within Standard Deviation 0.419 Legend: P - Process Skill Treatment Group S Process Questioning Strategies Treatment Group 118 .mHmmayomma nvm.o mmm.o a>oozab onm HHSa may pomflmu yon 000.0 000.0 <>oozas 1000 cm .mo.um Ummoxm you aa>ouz¢DV ow mmnHm>lm mOCMHHm>ou myMHHm>Has mHm.o mmN.o moamEHOMHmm mo mHmmHmad may moaHm HHmsm myMHym>HaD aavm conHomo paw msHm>Im oHymmtm UmymmH mHamHum> poaymz HMUHymHymym mHmmayommm Hm>mH a .moamEHOMHmQ HHmsm so Hm>mH ha yamEymmuy mo yomwmm COHyomumyaH paw .HHme mmmooym HMHyHaH mo Hm>mH .mmwy HmaoHyOdHymaH wo yommmm mo COmHymmEounn.vH mHame 119 An additional analysis, not part of the original study design, was performed to determine the effect of instructional type on Pupil Performance, as well as on measures of attitude and behavior when teachers were first divided into levels about the median on initial attitude toward teaching science. A multivariate and univariate analysis of covariance testing the effects of treatment, level, and interaction on Pupil Performance and five other variables, as listed in Table 4, was performed. Table 15 illustrates the abbreviated results of the analysis. Table lS.--Multivariate analysis of covariance showing effects of initial attitude toward teaching science on six dependent variables, including Pupil Performance. Multivariate Multivariate a Level F-Ratios P-Values and Decision The decision would Treatment be t0: Effects 0.709 0.672 — not reject Levels 11.794 0.034 - rejecta Interactions 3.505 0.165 — not reject the several multivariate null hypotheses at the p=.05 level. aNote explanation in the following text. The analysis reveals that were such an hypothesis being tested, an F-ratio of 0.709 and associated p-value of 0.672 would result for treatment effects. The decision 120 would be not to reject the null hypothesis. An F-ratio of 11.749 would result for the effect of initial attitude level on performance. The associated p-value would be 0.034. Such a value would normally result in rejection of the null hypothesis. This result, however, might well be attributed to small sample size, since an earlier test of initial atti— tude toward teaching of science but using the entire sample of 40 teachers revealed no differences attributable to effect of treatment on initial level of attitude. Inspec— tion of the Pupil Performance variable alone revealed a univariate F-ratio of 0.125 and associated p—value of only 0.733. Finally, Table 15 reveals an F-ratio of 3.505 and associated p-value of 0.165, results that would not warrant rejecting the null hypothesis for interaction effects; that is, effects of six variables including Pupil Perfor- mance differentially by treatment according to level. Descriptive Data Relative to Treatment Effects on Pupil Performance An important question in this study related to measuring changes in Pupil Performance. Since the data revealed no significant differences in Pupil Performance between instructional treatment types, an examination of the difference between Pupil Performance variables measured both before and after instruction was conducted. The fol- lowing hypothesis was tested: 121 There are no significant differences in Pupil Per— formance scores prior to and after instructional treatment. Table 16 lists the means of Pupil Performance for pre- and postinstruction for the subset sample of 16 teach— ers and their pupils, which has been defined in Chapters III and IV. V A t-test of differences performed on the means of Table 16 results in a t-value of 0.67. The decision is not to reject the null hypothesis with a = .05 (one-tailed). Examination of correlational data regarding the Pupil Performance variable revealed only several correlations that reached the p = .10 level. Thus, the pre— and post— instructional treatment Pupil Performance variables corre— lated to that extent, as did the premeasure of Category 7 of the I.A.S.T. with pre- and postinstructional measures of Pupil Performance. This result would suggest that those teachers who "justified their own authority,“ disciplined, or criticized pupils achieved higher Pupil Performance scores than those who did not. Both the low correlation (at the p = .10 level) and the very small percentage of Category 7 behavior (Table 11) suggest that these results be interpreted carefully. While the remaining correlations with Pupil Performance do not reach 0.10, they are included in Appendix M. 122 uomflmy you 00 0H0.0 H00.0 cofiymfl>ma pumpamym mymp pmymHmuuoo m mm.H no.0 mm.N mn.N mOCMEHOHMmm How ymmyty aonHomQ paw mmsHm>Iy .ymaHymom .ymaHmHm Umymme poaymz mHmmayomwm AUmHHmytmaov UmymHsonu mHQMHym> HMOHymHymym mo.ud ym msHm>uy . .maHaommy HmaoHyosyymcHymom paw Imum How moamEHOMMmm HHmsm mo mmyoom ammzun.oH mHamB 123 Summary Following is a summary of the hypotheses statement of whether to reject or not reject the a Level There are no significant differ- ences in mean postinstructional scores of A) teacher attitudes .05 (A.T.S., A.T.D.M.T.S.) nor B) teacher behaviors (Q.T., .05 I.D., S.T.) between the two instructional groups (Process Skills and Process Question- ing Strategies). There are no significant differ- ences in mean postinstructional scores of A) teachers' attitudes .05 (A.T.S., A.T.D.M.T.S.) nor B) teacher behaviors (Q.T., .05 I.D., S.T.) between levels of initial process skill (High and Low). and the nulls. Decision not reject not reject not reject reject Further analysis of associated univariate hypotheses showed significant differences to be in question type preference. 124 a Level There are no significant differ- ences in mean postinstructional scores on A) teacher attitude .05 (A.T.S., A.T.D.M.T.S.) nor B) teacher behaviors (Q.T., .05 I.D., S.T.) differentially between treatment and level of initial process skill. There are no significant differ— ences between measures of teacher attitude (A.T.S.) or .05 (two- behavior (Q.T., I.D., S.T.) tailed) collected prior to and after instructional treatment. Decision not reject not reject not reject For the following portion of the summary, results pertain only to the subset of 16 teachers and their pupils. 5. There are no significant differ- ences in mean postinstructional Pupil Performance measures according to A) the instructional .05 method used, nor B) according to initial process .05 skill level held by the teacher, nor C) differentially with .05 instructional type according to level of initial process skill. not reject not reject not reject 125 2121721 There are no significant differ- ences in Pupil Performance scores prior to and after .05 instructional treatment. (one— tailed) Decision not reject CHAPTER V SUMMARY AND CONCLUSIONS Summary The purpose of this study was to compare the effective- ness of two instructional methods of preparing preservice elementary teachers to teach selected processes of science to children. Another purpose was to compare the relation- ships of initial attitudes toward teaching science and science process skill competence to initial teaching behaviors. Each of the two instructional methods compared con— sisted of a self-paced module designed to improve elementary science teachers' ability to teach process skills to children. One module was designed to improve the skills of observing, classifying, and inferring in the teachers. The other was designed to improve directly the teachers' questioning abil- ity, specifically the ability to elicit observing, classify- ing, and inferring behavior in children. The two measures of teacher attitude assessed were attitude toward teaching science and attitude toward different methods of teaching science. Three measures of teacher behavior assessed were teacher question complexity level, indirect to direct beha- vior ratio, and student to teacher talk ratio. Measures of pupil performance made for each teacher consisted of the 126 127 means of pupil scores based on the extent to which lesson objectives were achieved by the pupils taught by a given teacher. A review of the literature revealed that process skill development objectives were among the most important objectives for children studying science in the schools. In the literature, teachers were found to lack a sufficient background in science process skills and also in the complex behaviors associated with eliciting the appropriate process skill behavior in children. Instructional modules designed to develop either science process skills or apprOpriate teacher behaviors were reviewed. Attitudes and teacher verbal behaviors, including especially questioning behaviors, were found to be of major importance to modern teacher preparatory programs. Finally, the review underlined the importance of measuring pupil outcomes in relation to preparatory programs, but it also suggested that little such activity has been conducted. Forty lower elementary preservice teachers enrolled in a science methods course at the University of Manitoba during winter term of 1971 were randomly selected from a larger group. Each group was subsequently randomly assigned to one or the other of the two instructional treatment types. Further division of the entire group into high and low ini- tial process skill levels led to the 2x2 design used in the study. 128 Prior to the instructional treatment, teachers com— pleted tests to assess attitudes toward teaching science, as well as to assess their science process skill level. Prior to instructional treatment, teachers also taught a science exercise to a small group of children, during which time three initial teaching behaviors were assessed. The two measures of postinstructional attitude and the three measures of behavior during science teaching were made for all teach— ers. For a subset of sixteen teachers, postinstructional performance of pupils was also assessed. The results indicated that even prior to instructional treatment, teachers using the lesson objectives and materials provided in the study performed a range of desirable beha- viors including a high question complexity level. The results indicated, too, that a teacher's knowledge of the processes of science has precedence over her attitude toward the teaching of science when relationships to desirable initial teaching behaviors are considered. The results also indicated that there were no signif— icant differences in the effects of the two instructional treatments as measured in the study. It was indicated, how- ever, that preservice teachers of high initial science pro- cess skill who had undergone one or the other of the instruc- tional treatment types demonstrated teaching behaviors significantly different from those of low initial science process skill. The differences were due in large part to question complexity level, with higher initial science 129 process skill levels associated with a higher final propor- tion of observing, classifying, and inferring questions asked. No significant interactions were found. Finally, the Process Questioning Strategies instructional method by itself was effective in reducing the amount of teacher—controlled silence including demonstrating to pupils. The Process Skill develOpment instructional method by itself was effective in increasing the prOportion of time teachers devote to ques— tioning and to allowing pupils to respond, and in reducing the prOportion of time devoted to direction giving by the teacher. Conclusions In View of the data collected, the testing of hypoth— eses, and the analysis of the findings of this study, the following conclusions were drawn: 1. Given lesson objectives and materials based on an exercise from a recently developed elementary science cur- riculum, Science—-A Process Approach, preservice teachers who have not had formal instruction in the methods of teaching science nevertheless perform a range of behaviors thought to be important to the teaching of elementary school science. Specifically, for example, their questioning behavior includes a very high prOportion of high complexity level questions which appear to be designed to elicit science process skill behavior from children. 130 2. Teachers of high initial attitudes toward teach- ing science use less praise during their initial teaching. They are more teacher-directive in their teaching behaviors, including, for example, a high proportion of teacher-controlled silence during which they instruct pupils by demonstrating to them. 3. Teachers of higher initial science process skill encounter more questions from their pupils during initial teaching. They tend to be more pupil-centered in their teach— ing behaviors. They also have lower attitudes toward teach— ing science, and are younger. 4. The two instructional types of teacher prepara- tion, namely the Process Skills and the Process Questioning Strategies modules, do not differ significantly in their effect on teachers where the criteria are postinstructional scores on: a) attitudes (attitude toward teaching science, attitude toward different methods of teaching science), b) teaching behaviors (question type preference, ratio of indirect to direct behavior, and ratio of pupil to teacher talk), and c) pupil performance based on lesson objectives. 5. The two instructional treatment types considered together do not affect teachers such that those who differ on initial process skill level differ on postinstruction scores of: 131 a) attitudes (attitude toward teaching science, atti— tude toward different methods of teaching science). b) pupil performance based on lesson objectives. 6. The two instructional treatment types considered together affect teachers such that those who have a high level of initial science process skill demonstrate behaviors dif- ferent from those of low initial science process skill. The differences are due in part to level or complexity of ques— tioning, with higher final proportion of observing, classify- ing, and inferring questions asked. To a lesser extent, high initial process level teachers have a higher indirect to direct behavior ratio (I.D.) than their lower level counter— parts. 7. There is no evidence of a differential effect such that either one instructional treatment type affects the attitudes, behaviors, and pupil performance of teachers of one level of initial science process skill more than another. Instruction in one or the other of the instruc- tional types used in this study seems to be effective in increasing the percentage of time in a lesson which is devoted to teacher questions and pupil verbal responses. Furthermore, such instruction seems to lead to less teacher direction-giving and more teacher—controlled silence includ— ing demonstrating to pupils. 9. The Process Skill development instructional type by itself seems to be effective in increasing the proportion of time teachers devote to questioning and to allowing pupils 132 to respond. Conversely, instruction in the module seems to reduce the use of teacher directions. 10. The Process Questioning Strategies instructional type by itself seems to be effective in reducing the use of teacher-controlled silence including demonstrating to pupils. 11. No differences in pre and post measures of pupil performance can be attributed to the effects of instruction on teachers who have undergone training in one or the other of the instructional types. Discussion The methodological decision to use a particular set of objectives and lesson materials chosen from a recently develOped curriculum, Science--A Process Approach, itself probably contributed to the use, during initial teaching, of a much higher proportion of high level questions by teachers than is reported in any of the literature reviewed. Extensive provision of Opportunity for involvement of pupils in the manipulation of science materials and apparatus was among other behaviors used by all teachers. Factors such as the novelty and challenge of beginning a science methods class by teaching to a group of children and the tape- recorded observations may have contributed to a sensitizing effect which resulted in the unusually high levels of per— formance displayed by teachers during initial teaching prior to the onset of instructional treatment. Initial performance also resulted in higher levels of questioning in research by 133 Tucker and Moon when that performance was compared to that using either traditional materials or to that during later performance using new materials. Whether or not pupil group size also contributed to the desirable initial teaching behaviors was not investigated, but Rose found that teachers show higher level inquiry behavior patterns during micro— teaching to small groups than during single tutorial exper— iences. Nevertheless, certain of the behaviors that were displayed in this study might be considered particularly desirable in the context of a model of teaching based on logical Operations involving verbal communication between teacher and pupils. Others would be less important in the context of a model that views teaching to be largely asso- ciated with managing socioemotional climate or one which relates much of the important learning of young children to concrete experiences children have as they manipulate objects in their environment. Interrelationships found between initial attitude and process skill characteristics and initial teaching beha— viors are consistent with those of Bruce, who found strong correlations between science process skill and degree of pupil-centeredness of teachers, and also negative correla- tions between change on science process skill and age. Furthermore, the conclusions are consistent with those of Rose, in that they support the generalization that a pre- service elementary teacher's knowledge of the processes of science has precedence over her attitude toward the teaching 134 of science when relationships to desirable initial teaching behaviors are considered. The overall test of comparison Of the effects of the two types of preservice preparation was inconclusive, based on the three major criteria of teacher attitude, behavior, and pupil performance. Research such as that done by Koran would suggest that the logical Operations component of the Process Questioning Strategies module might have been strengthened by the use of video-taped film—mediated models along with, or as a substitution for, the written models of teaching behavior that were used in the treatment. Little if any additional teaching time would have been needed to incorporate such a change in the treatment. Another methode ological issue relates to the fact that the teachers were asked to teach the same lesson after instructional treat— ment as they did before. While this had advantages with respect to controlling variables, planning Of new teaching strategies beyond their initial preparation did not appear to be undertaken by all teachers once they found they were to reteach a lesson previously taught. Had more new strate- gies been planned, teachers might have been prone to incor- porate more of the experiences gained from the treatments, with the result that greater differences might have occurred between the two instructional types. Finally, the instru- ments used to measure the several variables might not have been valid or reliable enough to make the necessary fine distinctions based on a short training period using modules 135 which had considerable conceptual similarities along with their differences. Much of the research cited was incon- clusive as to effects on variables, even when treatments conceptually more different from one another were being tested. Considering gain scores rather than comparisons, the overall gains made in the prOportion of time devoted to teacher questioning behavior, pupil verbal response, and teacher-controlled silence after instructional treatment seem to be at the expense of decreased percentages of time devoted to direction—giving, followed by somewhat reduced evidence of pupil manipulative activity. Recently developed elemen— tary science curricula were designed to include generous Opportunity for pupil manipulation, in view of the need for concrete experiences at early stages of intellectual develop— ment suggested by theorists such as Jean Piaget. NO research was reviewed which suggested Optimum numbers of questions and their complexity levels, nor the Optimum prOportion of time to be devoted to pupil manipulative activity. Thus while it can be concluded that there were changes as des— cribed, it cannot be concluded that in the end these are more beneficial for the child. Examination of findings pertaining to differences in postinstructional teaching behaviors depending on level Of initial process skill revealed that after treatment the teachers who demonstrated low initial process levels asked more Of what were essentially lower level review questions 136 in an attempt, apparently, to establish a better base for the process develOpment activities to follow. Those teachers who used the review technique may have accomplished more by doing so than their counterparts who did not do so as Often or as effectively, but rather tended to limit themselves to a higher prOportion of higher level process skill questions. While research by Yost demonstrated that asking more complex questions results in more pupil learning, there was no evi— dence to support that conclusion based on the performance of pupils in this study. The higher postinstructional I.D. and S.T. ratios for high initial process teachers suggest that these teachers also establish a more pupil-centered or integrative socioemotional climate than their low-level counterparts. Positive relationships between science process skill and both question type preference and degree of pupil- centeredness found for inservice teachers by Bruce would support these conclusions. Finally, high initial process level teachers began with low attitudes toward teaching science as already noted earlier in this discussion, but gains by the high process skill group throughout the study were such that after instruction their attitudes toward teaching science were higher than their low-level counter— parts, if not significantly so. The one most likely explanation for the lack of pupil performance differences is that several of the teacher variables discussed, such as I.D. ratio and attitude toward teaching science, have been shown by other researchers to 137 have an effect on pupils after longer periods of time than the single encounter which teachers had with each group of pupils. While this explanation does not hold as readily for question complexity level, the methodological issue of small numbers Of teachers in both of the “teacher low-initial process level" cells of the pupil performance design helps to account for the fact that the small gains in pupil per— formance did not reflect the differences in teacher behavior and attitude which were Observed. Implications for Educational Practice 1. Since preservice teachers, given adequate Objectives and materials, perform a range of desirable behaviors even prior to instruction in the methods of teach— ing science, and since the manipulation Of materials is an integral part of the learning experience of a child, empha— sis should be given in their preparatory programs to the methods of selection, acquisition, and preparation of such aids to instruction. Furthermore, where school science instruction is weak, school boards should assess the science materials easily accessible to teachers to ensure that these are available in adequate supply. 2. Selection of prospective teachers should be based in part on characteristics such as attitude related to teach- ing science and science process skill ability. The initial characteristics should be used as the basis for planning more specific and individualized programs for prospective teachers. 138 3. Since low attitudes toward teaching science improve rapidly given apprOpriate experiences such as either of the instructional modules used in this study and since a preservice teacher's science process skill ability bears a higher relationship to desirable teaching behaviors than does attitude toward teaching science, initial science process skill level should take precedence over initial attitude toward teaching science when choosing candidates for entry into the teaching profession. 4. Preparatory programs for teachers of science may be effectively assessed from measures including those of pupil performance when the objectives Of the preparatory program bear a close relationship to the objectives used in teaching children. 5. Self—paced modular instructional methods of the type used in this study may be used effectively by those charged with preparing teachers for service where the objec- tives for teachers include: a) increasing the prOportion of teaching time devoted to teacher question and pupil response, and in reducing the use of teacher direction-giving (Process Skill development module). b) reducing the use of teacher-controlled silence including demonstrating to pupils (Process Ques- tioning strategies module). 6. Videotaped models of teaching behavior which exemplify desirable teaching practice should be made. The 139 interaction of teachers demonstrating such behavior with their pupils should be examined using a number of techniques of content analysis including verbal and nonverbal inter- action analysis. The norms which result from coding such teaching should be used as standards toward which preservice teachers should work. Recommendations for Future Research l. The concept of attitude as it relates to teach- ers of science needs further clarification. Confidence in teaching science, perceived ability, and the wish to be able to teach science, along with attitude toward the teacher— pupil interaction, are among the examples of distinctions which may be made using techniques such as the semantic differential first develOped by Osgood. An attitude instru- ment which assesses those attitudes that are important to the teaching of science in the elementary school should then be developed and tested with preservice elementary school teachers. 2. Data available from the present study and which (include the sequence of teaching behaviors as they occurred during the several teaching episodes should be further analyzed. Hall, the develOper of the I.A.S.T., recommended that patterns of influence or strategies may be thus docu- mented. Readily available techniques of interaction analy- sis as develOped by research such as that of Flanders and Amidon should be used to interpret the data. Research by 140 Hall would suggest that such data used as feedback for teachers are an effective teaching tool. Whether or not they are could be determined from a comparative study. 3. Rose noted the use by teachers of higher level inquiry behavior patterns in science teaching situations where teachers are involved with pupils in small group as Opposed to single tutorial situations. Interaction should be analyzed in terms of the communication networks which exist in an intact classroom. Variables such as heterophily in dyadic and group communication should be examined. Tech— niques of content analysis, including episodic and verbal and nonverbal interaction analysis as develOped by Flanders and Amidon, should be used. 4. Studies by Hall and Moon indicated that increased direction-giving on the part of inservice teachers occurs when these teachers are introduced to and subsequently teach the curricula Science-~A Process Approach and Science Cur- riculum Improvement Study. Whether or not such increased direct behavior is perceived as more restrictive than in traditional settings could be determined by a comparative study of both teacher and pupil attitudes for each of the new curricula and cases. The semantic differential develOped by Osgood could be used for assessment of the attitudes. 5. Replication of the basic comparative design and field-testing components of the present study should be undertaken. Teacher subjects of both sexes and both upper and lower elementary preference should be involved, since 141 studies by Butts and Raun and others have suggested some differences in such different samples. New modules which develop desirable teacher characteristics should be tested. Teachers should be allowed to diSplay the changes they have undergone as a result of teaching. Science exercises, group size, amount Of direction, and materials given to teachers are among the variables which should be manipulated. 6. Teacher attitudes toward a set of stated posi- tions regarding aspects of science teaching should be measured using a Likert-type scale. Each position should be accompanied by another scale, on which teachers could indi- cate their degree of knowledge and understanding of the use of the particular aspect of teaching. Research by Festinger, Heider, and others would suggest that where there is per- ceived cognitive imbalance the subject will be motivated to restore the balance. Groups which have assessed their atti- tudes and understandings could be provided with access to individualized modules including written, audiotaped, and videotaped models of behavior. 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Staley, Frederick. "A Comparison Study in the Effects of Pre-Service Teachers Presenting One or Two Micro- Teaching Lessons to Different Sized Groups of Peers on Selected Teaching Behaviors and Attitudes in an Elementary Science Methods Course." Unpublished Doctoral dissertation, Michigan State University, 1970. Sweetser, Evan A. Science Process Test for Elementary School Teachers. 3rd ed. East Lansing, Michigan: Michigan State University, 1968. Sweetser, Evan A., and Taylor, Wayne. "The Development of an Objective Science Process Test for Elementary Teachers." Paper presented at the National Associa— tion for Research in Science Teaching meeting in Chicago, April, 1972. 150 TorOp, William. "Pupil Achievement in Science«—A Process Approach—~Part E." Paper presented at the National Association for Research in Science Teaching meeting in Chicago, April, 1972. Tucker, Jerry L. "The Effect of Televised Science Instruc- tion on Verbal and Nonverbal Process Behaviors of Teachers and Students in Grades 1—4.“ Paper pre— sented at the National Association for Research in Science Teaching meeting in Chicago, April, 1972. Walbesser, Henry H., Jr. "An Evaluation Model and Its Application." AAAS'Miscellaneous Publication 68-4 (1968). Walbesser, Henry H., Jr., and Carter, Heather L. "The Effect on Test Results of Changes in Task and Response Format Required by Altering the Test Admin- istration From an Individual to a Group Form," Journal of Research in Science Teaching, VII (1970), 1-8. Watson, Fletcher. "Novak's Research." National Association for Research in Science Teaching, I (1963), 133. Wick, J. W., and Yager, R. E. "Some Aspects of the Student's Attitude in Science Courses." School Science and Mathematics, LXVI (March, 1966), 269—273. Wideen, Marvin. "Comparison of Student Outcomes for Science-- A Process Approach and Traditional Science Teaching for Third, Fourth, Fifth and Sixth Grade Classes: A Product Evaluation." Paper presented at the National Association for Research in Science Teaching meeting in Chicago, April, 1972. Wilson, John H. "The 'New' Science Teachers Are Asking More and Better Questions." Journal of Research in Science Teaching, VI, 1 (1969), 49—53. Wilson, John H., and Renner, John W. "The 'New' Science and the Rational Powers: A Research Study." Journal of Research in Science Teaching, VI (1969), 303-308. Yost, Michale, Jr. "The Effect on Learning of Post Instruc- tional Verbal Responses to Questions of Different Degrees Of Complexity." Paper presented to the National Association for Research in Science Teaching, Minneapolis, March 5-8, 1970. APPENDICES 151 APPENDIX A SCIENCE PROCESS TEST FOR ELEMENTARY SCHOOL TEACHERS (3rd Revised Edition) 152 DIRECTIONS: SCIENCE PROCESS TEST for ELEMENTARY SCHOOL TEACHERS (3rd Revised Edition) Choose the response that is most correct and mark its corresponding number on the IBM Scoring Sheet. Be sure your name, student number, and course number are completed on the Answer Sheet. DO NOT MARK IN THE TEST BOOKLET 153 Items 1- 154 11 are concerned with an experiment on behavior in mealworms. In this experiment a Q-tip was used. This is a small stick with a bit of cotton firmly attached to the end. A Q—tip saturated with water was thrust near the mealworm. The mealworm backed up. 1. The hypothesis which was best tested in the above experi— ment is: (l) (2) (3) (4) Mealworms are sensitive to water. Mealworms can see objects moving toward them. Mealworms are sensitive to (or will react to) a Q-tip saturated with water. None of the above hypotheses were tested. 2. At this stage there is most justification for saying that (l) (2) (3) (4) (5) 3. The (l) (2) (3) (4) (5) 4. How (1) (2) (3) (4) (5) the mealworm responded negatively to water. the mealworm could see an object moving towards it. the mealworm responded to moist approaching cotton. mealworms do not like to be disturbed. mealworms will respond negatively to anything foreign to their environment. experimental variable in this experiment was the mealworm. the Q-tip. the water. the habitat of the mealworm. none of the above. could the initial aspect of this experiment be improved? Use a larger piece of cotton and more water. Use 15-30 mealworms, one at a time. Run 15-30 trials on successive days using a single mealworm. Do both (1) and (2) above. Do both (2) and (3) above. The experiment described above was extended by testing the single mealworm with 30 trials with the following results: The mealworm (a) (b) (C) (d) backed up 10 times. went sideways 2 times. advanced 10 times. gave no observable reaction 10 times. 155 5. In this series of experiments the control (constant factor) was (1) the water. (2) the Q-tip. (3) the temperature. (4) the habitat Of the mealworm. (5) none of the above. 6. Based upon this and the preceding data, the best inter- pretation of these results would be that (1) this mealworm was getting tired. (2) this mealworm will move away from a Q-tip. (3) this mealworm is usually sensitive to (reacts to) the moving Q-tip. (4) this mealworm is usually sensitive to (reacts to) the water on the moving Q-tip. (5) both (2) and (4) above are correct. 7. In this series of experiments there was an experimental variable. The experimental variable was (1) the water. (2) the Q-tip. (3) the mealworm. (4) the habitat of the mealworm. (5) none of the above. The following graph shows the reaction of several mealworms, each used separately, over a large number of trials using alternately a dry Q-tip and a Q-tip saturated with water. 100- .rH / Number . F‘ j?” of 75— g Mealworm 50_ é; r1 Trials .¢; 25—1 % f / NO Backed Went Advanced Reaction 'Up Sideways Key: [3 Dry Q-tip @ Q-tip with water 156 8. If you approached a mealworm with a dry Q-tip, the best prediction that you could make based upon the above data would be: (l) the mealworm would not react to the stimulus. (2) the mealworm would go sideway from the stimulus. (3) the mealworm would advance toward the stimulus. (4) the mealworm would back away from the stimulus. (5) either (2) or (4). 9. The best interpretation that can be made based upon the data in the chart is that (1) mealworms see Q—tips. (2) mealworms are sensitive to water on Q-tips. (3) mealworms are sensitive to Q-tips thrust at them. (4) mealworms are not sensitive to wet Q—tips. (5) none of the above interpretations can be accurately made. 10. Refer to the chart. What is the average of the combined number of trials in which a mealworm reacted negatively, that is, backed up or went sideways? (l) greater than 150. (2) less than 60. (3) between 40 and 50. (4) between 75 and 100. (5) between 100 and 150. 11. Which of the following hypotheses was best checked by the experiment shown in the chart? (1) mealworms will react to Q-tips. (2) mealworms will react to water on a Q-tip. (3) mealworms will respond negatively to anything foreign to their environment. (4) mealworms will respond to any moving object. (5) none of the above hypotheses were checked in this series of experiments. 12. The following type Of shadow was observed cast by an object in bright sun light in the approximate position shown in the diagram. Close-up of shadow--actual Object shape of shadow Shape? Shadow 157 Which of the following objects could have cast a shadow in that given situation? NOTE: The view of the object is that side (or front) view toward the sun. (1) .m‘, (3)! ),(4)[1,<5)U Items 13-17 are concerned with the classification of buttons. 0 The following button shapes are to be classified using the chart below. The dots represent holes. AQGQQtt- A B H I 1. All Buttons Level 1 2. 3. Level II 4, 5. 6. 7. Classification Chart 13. Which of the following would be the best observable characteristic to use to classify the buttons at Level 1? (l) (2) (3) (4) (5) foundness vs. number of holes. squareness vs. number of holes. one hole vs. two holes. ‘ one-holed vs. not one hole. roundness vs. squareness. 158 14. If only buttons H, I & B are to be classified into box 3, what are the characteristics of the buttons in box 2? (1) round, triangular. (2) round, non—square. (3) round, non-round. (4) all buttons with less than four holes. (5) round. 15. If only buttons H, I, & B are in box 3, and if some round buttons are found in box number 4 of Level II, what is (are) the characteristic(s) of all buttons found in box number 2 of this key? (1) round and one hole. (2) round and more than one hole. (3) not square. (4) square less than four holes. (5) both round and square. 16. Based upon the information in the preceding question number 15, what is the characteristic to be found in Level II box number 5 of the classification key? (1) not round and more than one hole. (2) round and more than one hole. (3) square. (4) round and one hole. (5) not round and one hole. 17. Based upon the information in the preceding question number 16, what buttons would be classified in box number 5 of Level II of the key? (1) A (2) B, C: G: H (3) D, E: F (4) C: G (5) B; H: I 159 18. Which of the following diagrams would represent a circuit in which the light and/or the motor would operate? The battery is of a high enough voltage that it will Operate the above-mentioned items. 11 ht bulb switch motor switch /' it 4: A- battery C battery light bulb motor switch ‘6 ///’sw1tct / %: )4 .Q . B. battery D. battery light bulb (1) Diagram A (2) Diagram B (3) Diagram C (4) Diagram D 19. The following graph was plotted on the amount of evap- oration from a wet paper towel over a period of time. The relative humidity was 40%. 40- , 35- Number 30- 25- of 20_ Washers 15 Weight _ 10- 5.. 0 0 5 10 15 20 25 30 35 40 45 50 55 Time in Minutes Of washers NO. of washers NO. 4:. O N O 0 , 40 20 0 160 Based upon the data in the graph, one could best conclude that more water evaporated: (l) (2) (3) (4) (5) between 0 and 10 minutes. between 10 and 20 minutes. between 20 and 30 minutes. between 30 and 40 minutes. after 40 minutes. Items 20-21 and concerned with the following information. In the preceding experiment in question 19, if certain conditions were varied the plot of the data might look like some of the following. q .1 .1 fl '1 d d m H40, m J 'C: 4 U) (U . 3 20. ‘H . O O 0‘ 7 go Z T r1 1 I I I I I SO A. Time in minutes B. Time in minutes )4 (D 0) " .C.‘ 4 I: . U) U) (U 7 g . 3 J 20.) “201 ”H .. o 4 O O 0 d O T O “ z j I r r T I I I I I I z O I I I I ffi I T r O l 1 I II I 7 I I 1 50 {o 50 C. Time in minutes D. Time in minutes E. Time in minutes 161 20. On a dry day the results might best be represented by (l) chart A. (2) chart B. (3) chart C. (4) chart D. (5) chart E. 21. If a larger paper towel was used and the day was humid, the data could best be represented by (l) chart A. (2) chart B. (3) chart C. (4) chart D. (5) chart E. ------—----—---—---_—-------_-----—----—-—_——-—--—--—-—-—-—— Items 22-26 are concerned with the following chemical test. Certain chemical tests were conducted as follows. A series of powders (solids) were checked with a series of liquids with the following results: POWDERS A B C LIQUIDS Rx Rx NR KEY: RX = Bubbled 1 RY = Turned green RX RX Ry NR = No reaction 2 RY 3 N R RY RY 22. In an experiment in which one wishes to determine what an unknown chemical substance consists of, what is the purpose of running a series of tests on known substances which may be the unknown substances? (1) to establish an experimental variable. (2) to establish an unknown variable. (3) to check on known variables. (4) both (2) and (3) above. (5) both (1) and (3) above. 23. From the results indicated in the chart, one can conclude that: (l) substance (2) substance (3) substance (4) substance (5) substance and B are the same chemical substance. contains some of substance A. contains some of substance B. contains some of substance C. contains some of substance C. CDS’ZP'UICD' 162 24. One can conclude from these chemical tests that: (l) Liquids l, 2, and 3 are unique. (2) Liquids l and 2 are unique. (3) Liquids l and 2 are the same. (4) Liquid 2 contains some of liquid 1 and 3. (5) Liquid 3 contains some of liquid 1. 25. If one was given an unknown which was tested with a mixture of liquid No. l, and No. 3 and the only observed reaction was RY, what could you conclude about the composition of the unknown substance: (1) that it was the same as substance A. (2) that it was the same as substance B. (3) that it may have contained some of substance B. (4) that it may have contained some of substance C. t (5) that it may have contained some of substance A. 26. In using the chemical test of question 23 as a basis of conclusions for question 25, we have used the chemical tests in question 23 as: (l) Unknowns. (2) Controls. (3) Uncontrolled variables. (4) None of the above. Items 27-28 are concerned with the following experiment on the growth of bean seeds. An experiment was conducted in fourth grade on the growth of bean seeds. The pupils measured the plants three days to determine the amount of growth. The rate of growth was defined as the average of all plants growth every three days. The class wanted to place a graph of this on their bulletin board. 27. What type of measuring factor were they using when they translated rate of growth measure to a graph? (1) Scalar. (2) Predictive measurement. (3) Vector measurement. (4) both (2) and (3) above. (5) None of the above. 163 28. The average of the measured growth for four measuring periods was: 1/2", 3/4", 1", 1-1/4". What is the ratio they would use if the first measurement is to be trans- lated into 1" on the graph? (1) 1-1/2 to l. (2) 1 to 2. (3) Not applicable. (4) 1/2 to 2. (5) 4 to 2. ---————--------—-_——_---—----------—-~-—--—-—-_——--_————"'—-— 29. Which Of the following diagrams are symmetrical? O XX XXX X XXX A B C D X (l) (2) (3) (4) (5) & & and C. and D. \ 3’3’3’3’3’ B C I B: IE! 30. An elementary science class is studying the phenomena of a swinging pendulum. They set up a pendulum 3 ft. long. If it took time x to swing through arc (distance) A to B, see drawing below, what would be the rate of time needed to cover the same arc if the pendulum was shortened? (1) increased. (2) decreased. (3) remain the same. (4) insufficient evidence. 3 ft. Pendulum Shorten Pendulum 31. 32. 33. 164 The following is a diagram of an experiment conducted by John Brown. He was to find out whether the top stick in the diagram would cast a shadow and if so where would the shadow fall. The bottom stick is set up such that the shadow is at a minimum at its base. Both rods are perpendicular to the sphere and on the same longitude line. Examine the diagram and then predict in which of the three positions labeled A, B, C the top stick would cast its shadow. 4. .0 w a!” I .1.) 0 S 9 Q .3‘ _‘> r; __'> Stlck : 53) ——> > (1) Shadow A. (2) Shadow B. (3) Shadow C. (4) It would cast a shadow in a position not labeled A, B, or C. The best operational definition of the area of this paper is: (1) how many one-inch blocks will fill it. (2) how large it is. (3) how many one—inch squares will cover its surface. (4) both (1) and (2) above. (5) both (1) and (3) above. Mrs. Smith's class was studying science when the word porosity appeared. Mrs. Smith had prepared illustrations to aid the students' understanding of the word. The illustrations were as follows: A. Took a box Of marbles and poured one cup of sand over the marbles before the box was entirely full. B. Took a jar of sand and added one pint of water before the water was ready to spill over the edge of the jar. Probably the best operational definition of the word porosity would be: (1) The amount of solid you can add to a loosely packed solid without changing the volume. (2) The amount of liquid or solid that can occupy the spaces between liquid or solid particles without changing the volume. (3) The amount of liquid that can be added to a solid without changing the volume. (4) The amount of liquid or solid that can be added to a loosely packed solid without changing the volume. 165 34. Select one of the following as the best Operational definition of density: (1) (2) (3) (4) The amount of matter in 1 gram of lead. 10 cubic centimeters of substance weighing 5 grams. The volume of water displaced by an immersed body, as compared to its mass. The mass of an Object compared to its weight. 35. The selection of the answer in question 34 is based upon (1) (2) (3) (4) Numerical factors of a specific density. What to do and what to Observe in determining density. How much something weighs. None of the above. 36. When a student uses a series of small washers in one pan to counter balance a penny in a 2-pan level arm balance, he is: (1) (2) (3) (4) (5) deriving his own measurement scale. substituting washers for gram weight. using the gram as a unit of weight. doing (1) and (2). doing (1) and (3). 37. A candle goes out when a closed glass jar is inserted over it. Which of the following can we conclude from the (l) (2) (3) (4) (5) information given. Oxygen is required for burning. The air was all used up. The candle no longer has enough of something to continue burning. Candles burn oxygen. Both (1) and (4). 38. A classification system can be based upon: (1) (2) (3) (4) (5) Structural similarities. Structural differences. Functional similarities. Both (1) and (2) above. (1). (2), and (3). 39. 40. 166 Prediction is used in science learning activities because it allows us to (l) (2) (3) (4) The (1) (2) (3) (4) (5) go from the unknown to known. go from the known to unknown. make judgment on very little evidence. Both (1) and (3). concept of measurement is limited to area and volume. may involve arbitrarily chosen units. is limited to length and weight. does not involve time. Both (1) and (3). APPENDIX B "SCIENCE PROCESS TEST FOR ELEMENTARY SCHOOL TEACHERS" DATA FOR TWO GROUPS OF MANITOBA TEACHERS 167 "SCIENCE PROCESS TEST FOR ELEMENTARY SCHOOL TEACHERS" DATA FOR TWO GROUPS OF MANITOBA TEACHERS I: a Number in group 55 40 Mean 18.47 18.35 Standard Deviation 5.17 5.25 Variance 26.73 27.56 Legend: Group A: Education majors enrolled in science methods course (K-3) during Fall, 1970. Group B: Education majors enrolled in science methods course (K-3) during Winter, 1971, and par— ticipating in this study. 168 APPENDIX C LIST OF SCHOOLS USED IN THE STUDY WITH SOME CHARACTERISTICS 169 LIST OF SCHOOLS USED IN THE STUDY WITH SOME CHARACTERISTICS NO. of Classes Pupil School School Involved Performance Number School Name Size (3rd grade) Data 1 Dalhousie 647 (3) open area classroom* X 2 Ralph Maybank 549 (3) X 3 General Byng 609 (2) — 4 Agassiz Drive 199 (1) - 5 St. Avila 530 (3) - 6 Montrose 370 (2) - 7 St. Norbert 736 (3) Open area classroom* - *Single large, open area classroom. 170 APPENDIX D ATTITUDE TOWARD TEACHING SCIENCE INSTRUMENTS (FORMS A AND B) WITH SCALE VALUES FOR SCORING 171 ATTITUDE TOWARD TEACHING SCIENCE-—FORM A Please read each of the following statements carefully. Put a check mark (/) if you agree with the statement. Put a cross (X) if you disagree with the statement. If you simply cannot decide about a statement, you may place a question mark beside it. WI (Scale Values) (10.4) 1. I would rather teach science than eat. (10.3) 2. I will love teaching science. (10.1) 3. The most lasting satisfactions in life will come from teaching science. (9.8) 4. Teaching science will fascinate me. (9.7) 5. I won't mind teaching science seven days a week. (9.5) 6. Teaching science will be more enjoyable than most play. (9.4) 7. I will like teaching science too well to give it up. (9.3) 8. Teaching science will be one of my favorite pastimes. (9.2) 9. Teaching science will give me a great deal of pleasure. (9.1) 10. I will feel as though I am being of benefit to mankind when I teach science. (9.0) 11. Teaching science will Offer me a chance to put my own ideas into operation. (8.9) 12. Teaching science will mean a great deal to me when I am old. (8.6) 13. Teaching science will be a good job. (8.4) 14. Teaching science will bring benefits to everyone who does it. (8.3) 15. Teaching science will have several very decided advantages over most other jobs. 172 173 (Scale Values) (8.1) 16. Teaching science will undoubtedly be a job worth having. (7.9) 17. Many things about teaching science will be advantageous. (7.6) 18. Teaching science will be a good pastime. (7.5) 19. Teaching science will have its merits. (6.8) 20. Teaching science will be good enough for me. (6.7) 21. Teaching science will be satisfactory. (6.5) 22. Teaching science will be a pleasure some of the time. (6.1) 23. I don't think teaching science will harm anyone. (5.5) 24. The advantages and disadvantages of teaching science will about balance each other. (4.7) 25. Teaching science will be all right when there is nothing else to do. (4.6) 26. Teaching science could be much more interesting. (4.2) 27. Teaching science is all right, but I won't want to do it. (4.0) 28. Some peOple will like to teach science, but more of them will dislike it. (3.9) 29. Part of the time I will enjoy teaching science; most of the time I won't. (3.7) 30. To me teaching science will be more or less boring. (3.6) 31. Many peOple will not like teaching science. (3.4) 32. Why should one teach science when so many other jobs will be better? (3.3) 33. An intelligent person will not be satisfied to teach science very long. (3.1) 34. The advantages of teaching science will never outweigh the disadvantages. (Scale Values) (2.8) (2.7) (2.4) (2.1) (1.8) (1.7) (1.3) (1.1) (1.0) (0.7) (0.6) 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 174 There will be many more disadvantages than advantages in teaching science. I will have no desire to teach science. One won‘t be able to keep up a decent standard living by teaching science. I will be better off without teaching science. The less I see of science teaching, the better I will like it. Only a very stupid person will be satisfied with teaching science. Teaching science could be buried for all I care. The best one can hOpe for from teaching science is a long life which will end up in the poorhouse. I will have a feeling of hatred for teaching science. Under no conditions will I like teaching science. Teaching science will be the worst occupation in the country. 175 ATTITUDE TOWARD TEACHING SCIENCE--FORM B Please read each of the following statements carefully. Put a check mark (/) if you agree with the statement. Put a cross (X) if you disagree with the statement. If you simply cannot decide about a statement, you may place a question mark beside it. (Scale Values) (10.4) 1. Teaching science will be the ideal vocation for a life work. (10.2) 2. No matter what happens, teaching science will always come first. (10.0) 3. I will like teaching science better than any other thing I can think of. (9.8) 4. Self-respect, social approval, reasonable pay and hours, and steady employment—~these will be the advantages of teaching science. (9.7) 5. Teaching science will be my hobby. (9.5) 6. I will really enjoy teaching science. (9.4) 7. I have always wanted to teach science. (9.3) 8. I will enjoy teaching science even when I am independent. (9.2) 9. I can think of few jobs I would rather have than teaching science. (9.1) 10. There are only a few vocations I would rather have than teaching science. (9.0) 11. Anyone who dislikes teaching science is a fool. (8.9) 12. Teaching science will bring one greater respect from both oneself and others than most jobs. (8.6) 13. Teaching science will develOp a good character in me. (8.4) 14. Everyone should like teaching science. 176 (Scale Values) (8.3) 15. Teaching science will be interesting. (8.2) 16. Most people will like teaching science. (7.9) 17. Teaching science will develOp a favorable attitude toward work in general. (7.6) 18. I can think of a lot more advantages than dis— advantages tO teaching science. (7.4) 19. At least I won't be worn out at night when I come home from teaching science. (6.8) 20. I will like teaching science only fairly well. (6.7) 21. Teaching science could be made beneficial to one. (6.5) 22. The advantages of teaching science will slightly outweigh the disadvantages. (6.0) 23. I will enjoy only parts of teaching science. (5.5) 24. My likes and dislikes for teaching science will about balance one another. (4.7) 25. There will be a few unpleasant things connected with teaching science. (4.6) 26. Teaching science would be all right if it weren't for a few disagreeable things. (4.3) 27. There will be a few more disadvantages to teaching science than there will be advantages. (4.0) 28. I will be able to get along without teaching science. (3.9) 29. There are many occupations I will like better than teaching science. (3.7) 30. Teaching science used to be a good job, but not any more. (3.5) 31. Why should I teach science when there will be so many more pleasant things to do? (3.4) 32. Quite a number Of things about teaching science will annoy me. 177 (Scale Values) (3.3) 33. Anyone who teaches science must be unambitious. (3.2) 34. I won‘t care about teaching science. (2.9) 35. After the age of 45 one will be useless in teaching science. (2.7) 36. There will be too many undesirable qualities about teaching science. (2.4) 37. Teaching science will do one more harm than good. (2.1) 38. I will hate to think of Monday morning coming and having to go back to teaching science. (1.8) 39. Teaching science will be a waste of time. (1.7) 40. Teaching science will have no place in the modern world. (1.3) 41. More people will hate teaching science than any other work. (1.2) 42. Teaching science will be all bunk. (1.0) 43. Teaching science will be disliked by everyone. (0.7) 44. I wouldn't take a job teaching science under any circumstances. ‘ (0.6) 45. I will refuse to teach science even if I am starving. APPENDIX E ATTITUDE TOWARD DIFFERENT METHODS OF TEACHING SCIENCE INSTRUMENT SCORING PROCEDURE FOR ATTITUDE TOWARD DIFFERENT METHODS OF TEACHING SCIENCE INSTRUMENT 178 ATTITUDE TOWARD DIFFERENT METHODS OF TEACHING SCIENCE Your responses to the following items will permit us to determine what prospective teachers of elementary science think of various classroom techniques. There are no right or wrong responses to the items in the booklet. Our interest is teacher Opinion on the issues presented in this booklet. Please indicate the degree to which you agree or disagree with each of the statements on the following pages, by responding on the separate answer sheet. Mark your response to each item in the following way: A - Strongly Agree B - Agree in General C - Undecided D - Disagree in General E Strongly Disagree Thus, if you "Strongly Agree" with the item circle the letter "A.“ If you "Strongly Disagree," circle the letter "E." Please reSpond to all the items. Responses made to any items in this booklet will have n9 bearing on the grade you will receive in any course or courses for which you are enrolled so--BE HONEST. 179 10. 11. 12. 180 Laboratory activities, which encourage all pupils to arrive at the same answer, are probably of little value in developing real scientific understandings. If all teachers of elementary science were to subscribe to the notion that children should "find out things for themselves," we would have some poorly informed elemen- tary pupils. The teacher demonstration frequently accomplishes little more than to provide entertainment for the elementary science pupils. The teacher of elementary science should consistently provide Opportunities for children to apply their new ideas, and he should encourage divergent paths of think— ing, followed by independent study or investigation. Since children in the elementary school lack many of the skills necessary for laboratory work, the laboratory exercise is most effective when it provides specific directions for conducting experiments and Obtaining apprOpriate results. Teachers of elementary science should spend considerable time explaining scientific principles, which the pupils have difficulty in understanding. The effectiveness of an elementary science program, which promotes the sequential develOpment of simple to complex skills, is highly questionable. In order to be meaningful, the elementary science cur- riculum should not be established by the pupils, but it should be structured by the teachers according to their own preconceived goals. The value of the textbook in providing the elementary pupil with basic scientific understandings is, at best, highly questionable. Pupil response to teacher questioning seldom reveals whether the children have develOped understandings of the scientific principles presented through teacher demonstration. A good elementary science program should not downgrade the role of the teacher, thus encouraging the child to learn through trial and error. Elementary science programs should de-emphasize the importance of scientific content and concentrate on the teacher-guided develOpment of the skills of investigation. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 181 One of the most important functions of elementary science teachers is prOViding children with the "right answers" to their questions. A science program based on teacher-guided activities, which are aimed at developing specific observable behav- iors in the pupils, is most apprOpriate for the elemen— tary school. One of the biggest wastes of time, which can best be described as "busy work," is the practice Of answering questions in the textbook. It is doubtful whether teacher questioning, designed to lead children to their own conclusions during a demon- stration, would be an effective means of develOping a good understanding of scientific principles on the elementary level. Elementary teachers should base their science teaching on the philoSOphy that every time we tell a child something, we deprive him of the Opportunity of learning it for himself. Teacher demonstrations are very effective in developing scientific understanding when members of the class are allowed to plan and assist with the presentations. Teacher demonstration is one of the most effective means of develOping a good understanding of basic scientific principles. It is questionable whether the elementary science prO* gram should provide class time for pupils to pursue areas of their own choosing, even when some guidance is provided by the teacher. It is better to provide elementary pupils with situations where they can discover scientific principles for them— selves, without interference from the teacher, than to systematically teach them the same principles. TOO frequently, teachers of elementary science waste valuable time explaining basic scientific principles, which could be learned more effectively through some other type of activity. Elementary science teachers who generally encourage pupils to study and investigate their own ideas inde- pendently can usually look forward to classroom disorder where development of the more basic scientific under- standings is often lacking. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 182 Teacher assignment of science projects and reports is a valuable means of expanding pupil interest and under— standing Of basic scientific principles. Development of scientific understandings is not promoted through laboratory activities which include specific directions for setting up the apparatus, experimental procedures to use, and questions to answer. Good elementary science teachers seldom provide ready answers to pupils' questions. The learning situation in the elementary science class— room should be determined by the purposes or goals set by the learner as a result of his prior investigations. Teacher questioning with student response, following a teacher demonstration, is an excellent means of deter— mining whether the children have developed a good understanding of the scientific principles being dealt with. The technique Of assigned readings, in the elementary science text, is an indispensable means of providing a good understanding of basic science principles. The teacher Of elementary science should be advised to "leave the child alone. Let him make his own mistakes. Don't give him any answers right away. It is better to have him make mistakes than to be given the correct answers." One of the most effective elementary science teaching techniques is the use of demonstrations, accompanied by teacher-guided student interactions which have been designed to lead pupils to their own solutions. Answering the questions at the end of a reading assign- ment is still a good practice even though some of the "ivory tower" educators disapprove. The involvement Of pupils, through planning and assist- ing with teacher demonstrations, really adds very little to the total develOpment of scientific understandings. Placing children in positions where they can discover certain scientific principles, without any teacher guidance, is a rather idealistic method to use in the elementary science classroom. 35. 36. 37. 38. 39. 40. 183 Teachers of elementary science would do well to promote a program of guided project work in which the child explores his own areas of interest with minimal direction from the teacher. Science projects or reports, when teacher assigned, are generally a waste Of time in develOping better under— standings of the scientific principles being taught. Science programs which emphasize the develOpment of Specific pupil behaviors through teacher—guided activi— ties should not be stressed at the elementary level. Well-structured laboratory exercises, designed to find answers to specific questions, are more effective and meaningful than those that encourage pupils to go in many different directions. A good elementary science program will provide a step- by-step develOpment of scientific skills, beginning with the very basic and leading to the more complex. Teachers of elementary science who Spend most of their time systematically developing the child's problem- solving skills frequently fail to provide pupils with adequate science content. 184 SCORING PROCEDURE FOR ATTITUDE TOWARD DIFFERENT METHODS OF TEACHING SCIENCE INSTRUMENT 1. Average responses to the ten items within each of the four categories were computed. These scores were then recorded for each of the respondents. One such example might be: teacher—centered 3.5, teacher—oriented 4.0, pupil-oriented 3.0, pupil—centered 2.5. 2. Next, a single score, representing a point on a con- tinuum, ranging from teacher—centered to pupil—centered, was Obtained. This was accomplished by adding first the teacher-centered, teacher-oriented mean scores, and then the pupil-oriented mean scores. The difference between the two resulting scores was then calculated. Using the data previously cited, this procedure can be illus— trated as follows: teacher-centered (3.5) + teacher— oriented (4.0) + pupil-centered (2.5) + pupil—oriented (3.0) = 5.5. The difference being 2.0. 3. The final step in converting the scores to a single point on a continuum was based on the following rationale. Since the greatest difference that could occur between the two scores would be eight, the nondecision point was arbitrarily established at ten. Thus, when the differ- ence score was in favor of the teacher—centered, teacher— oriented approach, this score was subtracted from the nondecision point. Conversely, when the difference score was in favor of the pupil—centered, pupil-oriented approach, the score was added to the nondecision point. Therefore, the highest score obtainable would be 18, while the lowest score would be two. Using the differ— ence score from the above illustration, the final step is illustrated as follows: Teacher-centered Nondecision Pupil-centered 2 10 18 Using the above procedures, the four individual scores of the students were converted to a single point on a contin- uum. In the example cited the point represents an attitude toward different methods of teaching science, which tends to be somewhat teacher-centered, teacher-oriented. By using ten as a non-decision point the use of negative numbers, which usually appear on a continuum, was avoided. APPENDIX F INSTRUMENT FOR THE ANALYSIS OF SCIENCE TEACHING (I.A.S.T.) BASE SCALE GROUND RULES FOR THE USE OF THE INSTRUMENT FOR THE ANALYSIS OF SCIENCE TEACHING 185 INSTRUMENT FOR THE ANALYSIS OF SCIENCE TEACHING (I.A.S.T.) BASE SCALE Accept feelings: Recognizes and identifies with feelings of students (empathetic), non-evaluative encouragement or joking positive affective response. Praise: A positive value judgment. r] . 1 Acceptance of student's statements: A restatement of the student's statement, either written on the board or verbal. This category would also include short, non-evaluative confirmation such as "okay," "all right." r Question: All questions which require a student response. Direction: Giving directions and procedures; tell— ing the students how to do something. This requires an immediate student response or behavior. Initiate substantive information: Lecturing, giving facts, calculating, including writing new information on the board, rhetorical questions, and review information would be included in this category. Justification of authority: Disciplinary action and criticism of a student‘s behavior would be included in this category. ‘ Teacher-controlled silence: Periods of silence which would include teacher demonstration, or the teacher lecturing, or a teacher examining her notes would be included under this category. S T U D E N T 10. 11. 12. Student statements: This would include all student statements that are not questions. Student questions: Questions asked by the students of one another or of the teacher would be placed in this category. Affective response: Student responses that reflect student emotions or feelings about a certain topic. Student activity: This would include activity such as students working in workbooks, reading silently to themselves or working with scientific apparatus, etc. 186 13. 14. 187 Division of student-to-student interaction: A mark for the separation between two students' interactions. Nonfunctional behavior: Behavior without direction or purpose where no effective instruction is occurring. 188 GROUND RULES FOR THE USE OF THE I.A.S.T. DURING THE STUDY In addition to the category descriptions of the I.A.S.T., the following ground rules were Observed during coding. 1. If uncertain as to category, use either category 6 or the first category which is more applicable that is nearest to category 6. 2. Do not shift categories from one type of control (i.e. direct to indirect) unless there is a clear indication of change of type of control. 3. Categorization should be as it is perceived by the pupils (i.e. if a pupil perceives it is up to him to respond it is not a "teacher" category). 4. Changes in categories which occur during three- second intervals should be recorded. 5. In order to be scored as category 5 behavior, pupil response must be immediate; that is, not more than three seconds later. 6. Category 14 is to be used to signal beginning and end of teaching episodes. Where there is a delay of over three seconds in getting materials such as when a teacher leaves the group momentarily to repair or replace malfunc- tioning or expended materials, a 14 is scored at the end of three seconds and when the teacher returns and resumes her role as a group leader a category 14 is used once more to signal a new beginning. APPENDIX G TABLE OF RELIABILITY ESTIMATES FOR USE OF INSTRUMENT FOR THE ANALYSIS OF SCIENCE TEACHING 189 TABLE OF RELIABILITY ESTIMATES FOR USE OF INSTRUMENT FOR THE ANALYSIS OF SCIENCE TEACHING Training Period Reliability Estimate Tape #1 0.84 Tape #2 0.26 Tape #3 0.85 Tape #4 0.87 Mean 0.83 Test Period Reliability Estimate Tape #1 0.84 Tape #2 0.80 Tape #3 0.75 Tape #4 0.77 Mean 0.79 190 APPENDIX H SCIENCE TEACHING OBSERVATIONAL INSTRUMENT 191 SCIENCE TEACHING OBSERVATIONAL INSTRUMENT-—Part 2 Teacher Date Remarks Observer NUMBER OF QUESTION TYPES QUESTIONS ASKED % OF TOTAL RECALL FACTS Teacher asks any simple factual question. She appears to expect only information. SEE RELATIONSHIPS Students must relate facts, but without going much beyond given facts. MAKE OBSERVATION Students must Observe some ongoing activity and report sense data. HYPOTHESIZE Student asked to reason out or guess an answer which is not given as an immediate fact. TEST HYPOTHESIS Student is asked to validate or test answer, fact, or hypothesis. Total number of questions asked 192 -..:A It; .‘ h -' APPENDIX I TABLE OF INTRA-OBSERVER RELIABILITY ESTIMATES OF THE S.T.O.I. 193 TABLE OF INTRA-OBSERVER RELIABILITY ESTIMATES OF THE S.T.O.I. Training Period Tape #1 0.79 Tape #2 0.75 Tape #3 0.85 Tape #4 0.86 Mean 0.81 Test Period Tape #1 0.88 Tape #2 0.85 Tape #3 0.81 Tape #4 0.86 Mean 0.85 194 APPENDIX J TABLE OF SCORES FOR TWO OBSERVERS AND INTEROBSERVER PERCENT OF AGREEMENT FOR SCORING PUPIL COMPETENCY MEASURE, INFERRING 5, PART D, SCIENCE--A PROCESS APPROACH 195 TABLE OF SCORES FOR TWO OBSERVERS AND INTEROBSERVER PERCENT OF AGREEMENT FOR SCORING PUPIL COMPETENCY MEASURE, INFERRING 5, PART D, SCIENCE--A PROCESS APPROACH Observer Observer Percent of Agreement Pupil Subject 1 2 Between Observers A 5 4 80 In B 3 3 100 C 2 3 67 D 1 2 50 E 4 4 100 F 1 l 100 G 2 4 50 H 4 3 75 Mean percent of agreement over eight comparisons: 0.78 196 APPENDIX K LETTER TO PRINCIPALS AND TEACHERS DESCRIBING SCHEDULE NEEDS AND LESSON MATERIALS OF THE STUDY 197 198 To the Teacher Recent changes in science curricula at all levels have implications for teacher education. In order to attempt to improve the quality of one part of the teacher education program at Faculty of Education, I have proposed a project concerning some aspects of student teaching in science at the Primary level. F Accordingly, I would like to arrange for certain stu- i dent teachers to teach science under my supervision to some "Grade 3" pupils in the Greater Winnipeg area. The student . teachers chosen will be provided with instruction and mate— . rials adapted from a recently developed K—6 science curric- ' ulum, namely Science--A Process Approach. Some teaching of this program has already taken place in Manitoba. It is most desirable that the pupils involved have an experience based on the lesson outline, "Tracks and Traces" prior to the student-taught lesson, namely "The Displacement of Water by Air." Materials for the Tracks and Traces lesson will be supplied by those full-time teachers who agree to teach such a lesson--except for severalppairs of nutcrackers and 4 or 5 teaspoons. Could you and/or your pupils bring these? Where the teacher would prefer not to teach "Tracks and Traces," arrangements will be made for student—teachers to teach the lesson. In most cases it may be possible to teach "Tracks and Traces" by Wednesday, Jan. 20. Arrangements will then be made for student teachers to teach one-half of the class (or group), possibly Thursday or Friday, or possibly even Mon- day, Jan. 25, if necessary. Some two weeks later the remain- ing one-half of the class (or group) would be taught by the same student teachers. The lesson objectives center around inferring. The work "inference" simply means a statement of explanation of an Observation. “Observations" in turn may be thought of as "properties or characteristics of an object or situation determined from use of one or more of the five senses." (It is worth noting that the process of observing is basic to the development Of most other skills in science-~certainly basic to the combi- nation of skills or processes used while "experimenting.") Neither the Generalizing Experience nor the Appraisal (both on Page 4) are absolutely necessary--although somewhat desirable. The intent is to teach to fulfill the objectives. YOU WILL HAVE QUESTIONS! You could call me Monday evening at 269—1106 (say 5:30-9:00), or at 474-9741 anytime Tuesday. If I don't hear from you, I will "infer" that you have no problems--and that you can/did or will teach by Wednesday, Jan. 20. Good luck, and thanks, WK Harold H. 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