AN ANALYSIS OF THE EDUCATIONAL TESTING PROGRAM OF THE SCHOOL OF POLICE ADMINISTRATDN AND PUBUC SAFETY Thesis for the Degree of Ma S. MICHlGAN STATE UNIVERSWY Donaid Jameson Pope 1966 , Y R A R B I L m .n m is man M .w. m V .m U III/7T ' w W W I [9 2 1 m3 W H mm AN ANALYSIS OF THE EDUCATIONAL TESTING PROGRAM OF THE SCHOOL OF POLICE ADMINISTRATION AND PUBLIC SAFETY By Donald Jameson Pope AN ABSTRACT OF A THESIS Submitted to Michigan State University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Ibpartment of Police Awninistration and Pablic Safety May 1966 APPROVEDJ rm / WWW haifman) kw éTember) ABSTRACT AN ANALYSIS OF THE EDUCATIONAL TESTING PROGRAM OF THE SCHOOL OF POLICE ADMINISTRATION AND PUBLIC SAFETY by Donald Jameson Pepe For a total of eleven years the School of Police Administra- tion and Public Safety at Michigan State University administered a battery of tests to all freshmen and transfer students entering the school. This test battery was composed of tests designed to measure academic ability, emotional maturity and stability, and vocational interest. The purpose of this study has been to evalu- ate the effectiveness of this testing program. This evaluation 'was approached from two angles. The first of these was the over— all effectiveness of the program and the use made of its results. The second approach concerned the actual data gathered, and how this data might be used to predict the academic success of stu- dents enrolling in the School of Police Administration and Public Safety. As the reader will see in succeeding chapters, the study presents some conclusions, but on other points the study has been inconclusive or contradictory. An evaluation of the whole testing program was not possible because of the somewhat deficient planning and organization behind the program. Those conclusions that can be drawn indicate fairly Donald Jameson Pepe clearly that the program was only a qualified success. There was little use made of the data as it was gathered, and it was not organ- ized in a manner to facilitate any study of its over-all meaning or L contribution. Since the total program could not be studied, conclusions as to the predictive ability of its results must be based on a rela- tively small portion of the data gathered. These conclusions are somewhat tentative and do little more than show that one of the tests studied, the College Qualification Test, bears a small rela- tionship to academic success. This relationship is consistent, but not strong enough to justify its use as a device for screening applicants for admission. waever, the shortcomings of this first testing program do not mean that further efforts should not be considered. If any- thing, it points out our lack of knowledge in areas where we should know much more than we presently do know. There is a very real need for more exhaustive studies in areas relative to success in higher education. The School of Police Administration and Public Safety can and should assume leadership in studying those areas related to its own unique contribution to the community. AN ANALYSIS OF THE EDUCATIONAL TESTING-PROGRAM OF THE SCHOOL OF POLICE ADMINISTRATION AND PUBLIC SAFETY By Donald Jameson Pepe A THESIS Submitted to Michigan State University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Department of Police Administration and Public Safety May 1966 ACKNOWLEDCMENTS If I were to give full and detailed credit to all who con- tributed to the development of this thesis, the acknowledgments would be longer than the text. This campus seems to have more than its quota of helpful people who courteously answer what very prob- ably seem foolish questions to them. The staff at the computer center was most helpful, especi— ally, Mrs. Nbrma Landis. I am deeply indebted to Doctor Karslake of the Psychology Department for his counseling on matters method- ological. This study could not have been completed without his invaluable assistance. my special appreciation to Doctor Leon Wbaver who has assisted me throughout this study, listened to my tales of woe, and encouraged me to further efforts; and finally, deepest gratitude to my mother, who is even now typing the last pages of text as I write these acknowledgements. ii Chapter I. II. III. IV. TABLE OF CONTENTS INTRODUCTION . . . . Contributions of the Study Limitations of the SRudy Methodology . . . Organization of the Remainder Thesis . . . THE TESTING PROGRAMC . O The M.S.U. Orientation Tbsts Otis That of Mental Ability The Minnesota Multiphasic Personality Inventory . . . A.REVIEW OF CURRENT ATTEMPTS TO PREDICT ACADEMIC PERFORMANCE Specialized Test Batteries . High School Performance as an Multiple Factor Correlations General Comments . STUDY DESIGN . . . . Preliminary Problems The Final Sample . Criteria of Academic iii Success 9 Indication I-4 II-1 II-2 II-4 II~5 III-1 III-9 III—13 III-13 III-15 _ IVF1 IV¥1 IV43 IV-S Chapter Recording Procedure . . . . . . . Study Design . . . . . . . . . Implementing the Design . . . . . Computer Program . . . . . . . . V. RESULTS OF STUDY . . . . . . . . . The First Computer Run . . . . . . The Second Computer Run . . . . . Cross validation . . . . . . . . Cross Checking for Bias . . . . . VI. ANALYSIS OF RESULTS AND CONCLUSIONS . . . BIBLIOGRAPHY APPENDIX . Comparison with Other Studies . . . The meaning of the Statistical Results. Evaluation of the Tbsting Program . . Suggestions for Future Shudies . . . iv LIST OF TABLES Table Page 1. Correlation of Selected Variables with the GPA's of Freshmen in a Liberal Arts College . . . . . III-4 2. Comparison of Correlations Based on Ability and Attitudes with First Term and First Full Year College Success . . . . . . . . . . . . III-5 3. Correlation of Certain Tests and sub-Test Scores with the First Term Grades of Police Adminis— tration Freshmen . . . . . . . . . . . . III-7 4. Correlations of Freshmen GPAfs with TWO Scales of the Scholastic Aptitude Tbst . . . . . . . . III-8 S. GPA Correlations with a Specially Designed Test for Predicting Success in a College of Law . . . III—10 6. Test Correlations with Grades in Engineering and Non-Engineering Courses for Engineering Majors . . III-11 7. Differential Prediction in Three Types of College Curricula . . . . . . . . . . . III—12 8. High School Rank and GPA Compared with Other PrediCtor variables 0 e e o e e o e e e e III—14 Table Page 10. Number of Subjects with Complete Scores in EachTerm.............. IV-4 110 Division of Term sub-Groups into the Three Computational Steps . . . . . . . . . . IV—9 12. Ayerages of variables and Correlations with All— University and Police Administration Grade Point Averages . . . . . . . . . . . . V41 13. Correlations of Selected Variables with the Two Grade Point Averages and with Each Other - First Computer Run . . . . . . . . . . . V—5 14. A Comparison of Selected Portions of the Results of the First and Second Computer Runs . . . . V—7 15. Correlations of Selected Variables with the TWO Grade Point Averages and with Each Other — Second Computer Run . . . . . o . . . . Vm8 16. Cross Validation of Regression Equations: R's between Predicted and Achieved GPA's and Z Values of Changes . . . . . . . . . . V411 17. Simple Correlations between CQT Total and the TWO GPA's and Results of Cross Validation of the RegreSSion Equation 0 e e e o o o o o e V_13 vi CHAPTER ONE INTRODUCTION For a period of eleven years, ending with the Fall term of 1963, the School of Police Administration and Public Safety at Michi- gan State University administered a mental and psychological testing program to all entering students. The purpose of this study is to evaluate the effectiveness and significance of that testing program. The most important part of this study centers around the search for components of the test battery that will predict academic success. There will also be occasion to evaluate the testing program in terms of how well it was organized and the uses to which its results were put. Nb formal hypothesis is tested in this study. Rather, this study represents an attempt to organize an already existing body of data and to search for possible relationships between the data and academic success in college. CONTRIBUTIONS OF THE STUDY The importance of this study lies in its contributions to two major areas. The first of these is in providing the School of Police Administration and Public Safety with an evaluation of their new discontinued testing program. It is hoped that, on the basis of this evaluation, the school will be encouraged to develop better organized and more effective testing programs in the future. The I-2 second contribution, hopefully, will be to our general knowledge and understanding of the factors relevant to academic success. At the present time, the search for factors relating to aca- demic success and attempting to predict academic success receive high priorities from psychologists and educators. Their concern for this area is not without justification, as we know all too little about why some students succeed and others fail in school. we know even less about why some seemingly good students fail while many poorer students succeed. To be sure, we can identify many of the relevant factors operating here, but we are not yet able to determine how and to what extent these factors operate. LIMITATIONS OF THE STUDY Any conclusions drawn on the basis of this study will neces- sarily be limited by the design of the testing program and by the students participating in the program. The design of the testing program imposes several limitations on the study. The first of these is that the complete program could not be studied. One reason for this is that the composition of the test battery was changed in the middle of the eleven-year span of the program, thus making difficult or impossible an evaluation of test results cover- ing the entire eleven year period. The other reason is that many of the students' test records were imcomplete, and therefore un- usable. Another possible limitation lies in the fact that the stu- dents taking the tests are not representative of the University population as a whole. In fact, the Office of Evaluation Services reports on comparative standings on the M. S. U. Orientation Tests I-3 show that students entering the School of Police Administration and Public Safety have average scores much below the University average. The only academic areas scoring consistently lower than Police Administration were Agriculture and Education. As a result of these limitations, any efforts to extend the conclusions of this study to other testing programs or to other stu- dent groups should proceed with caution. There will be some gener- alisations made in the concluding sections of this study, but they will be somewhat tentative and in general supported by the findings of other researchers. METHODOLOGY The general plan of the study was first to divide the records from the testing program into three equal groups, with each group containing an equal number of students from each term. Then, through correlating test scores with academic performance, as repre- sented by all-University and Police Administration Grade Point Ayerages, the first two groups of students were used to identify test variables which seemed to correlate well with performance. These remaining test variables were then used to predict academic performance for the third group of students. A.comparison of their predicted performance with their actual performance would indicate, hepefully, the extent to which the test items related to and.were indicative of, a student's level of academic success. The reader will note in succeeding chapters that the neat study plan outlined above did not always prove workable. However, 'with modifications in design, the study was still able to reach some meaningful conclusions. 1-4 ORGANIZATION OF THE REMAINDER OF THIS THESIS The remainder of this thesis is organized into five major parts, each part represented by a separate chapter. The next chapter (Chapter II) deals with the nature of the Police Adminis- tration testing program. Chapter III is based on a review of the literature concerning attempts to predict academic success on the college level. Chapter IV'provides a detailed explanation of the study design. It also covers most of those factors that necessi- tated changes in the design of the study. Chapters V and VI deal with the actual results of the study, the former representing the results and the latter analyzing them. In Chapter VI conclusions are stated insofar as generalizations from the data can be justified. The final chapter, in addition to evaluating the testing program, also contains some suggestions con- cerning content and organization of future studies that the School of Police Administration and Public Safety might attempt. II-1 CHAPTER TWO THE TESTING PROGRAM Beginning with the fall term of 1952 and continuing through the fall term of 1963, all new freshmen and transfer students enter- ing the School of Police Administration and Public Safety were given a battery of psychological tests and inventories. The tests were generally given in the introductory course in Police Administration and then scored and interpreted by personnel in the Michigan State University Counseling Center. The final results for each student, reduced to summary form, were then transmitted back to personnel in the School of Police Administration concerned with academic advis- ing. These test scores were intended to aid in the advising pro- cess by providing indications as to where each student's strong and weak points lay. (The Appendix shows the report form employed). In the course of these eleven years, about 2,200 students were enrolled in the introductory Police Administration course. For reasons that have not been documented, almost half of these students had incomplete or totally missing test scores. There are about 1,200 partial or complete sets of test scores available, but as tests taken over some periods were unusable, no exact count of the total was made. During this eleven year period there were a number of changes made in both the composition of the test battery and in the form of II-2 reporting. It is for this reason that the sample used in this study is so much smaller than the number of students taking the tests. Chapter four explains in detail why the nature of the study necessitated selecting such a relatively small group. The tests employed in this program were concerned'with assessing emotional stability, maturity, vocational preference, level of academic potential or development, and certain aspects of the individual's personality. 3y covering such a wide scope, the tests employed in this program represent a fair cross section of the testing instruments available. Chapter' four lists all the tests and inventories employed throughout the duration of the pro- gram. A.brief review of the nature of these tests actually covered in this study will provide the reader with some idea of its scope and composition. TE! 1!. S. U. ORIENTATION TESTS The I; S. U. Orientation tests comprise a battery of tests presented by the university to all incoming Freshmen and transfer students. In both form and function they are similar to the entrance tests employed by most colleges and universities. They are all attempts to measure the general academic development of the entering college student. During the test period the Uhivesity employed two different batteries of entrance tests, but this study was limited to just one of them. 1 The "College Qualification Tests” consist of a three-part 1 Cells alification Tbsts: Combined Booklet Idition, the Psychologican Corporation, it. ThrE, l§5§. II—3 multiple choice examination covering verbal ability, mathematical ability and general information. In measuring verbal ability, the student is asked to pick a word.that means the same (or opposite) of a given word. Selection 1. made from a list of four alternatives and the items vary in difficulty. In the mathematics section the student is given a problem and asked to select the solution from a list of alternatives. The general information section simply asks questions drawn from diverse areas and asks the student to choose the correct answers. The sum of these three tests, the CQT total score, is also reported. In addition to the COT the entrance battery also includes the TISU Reading That"2 and the ”English Placement Test”? The reading test is designed to measure a student's ability to understand and learn from what he reads. It consists of eight reading selections representative of several academic areas here at lichigan State University. After each reading passage there is a series of ques- tions on the meaning and contents of the passage. In addition to measuring the student's ability to remember what he reads, the questions also provide some measure of the factors involved in critical thought. The English Placement Test consists of thirtybfive multiple choice questions representing various aspects of English usage: spelling, capitalisation, grammar, punctuation, sentence structure zssu Readi That, Office of Evaluation Services, Iichigan State versity, t Lansing, Hichigan, Form 1962. 3 lish Placement Test, Benjamin B. Hickok, Department of herican Thought and W, Hichigan State University, East Lansing, 1962. 11-4 and Organisation. This test is used primarily to identify students ‘who need remedial assistance in English or who qualify for honors sections. OTIS TEST OF lllTlL ABILITT4 The Otis Test of lental Ability is designed to measure reason- ing ability, not accumulated learning or knowledge. Ihile it is not possible to measure mental ability directly, one can measure the effect mental ability has on a student's ability to acquire certain knowledge and.mental skill. One way of doing this is to ask ques- tions that draw more on a person's innate ability and reasoning power, and less on prior learning. It is admittedly impossible to separate completely inborn skills from those acquired through learn- ing processes, but a careful selection of test items can reduce this problem to a point where meaningful statements can be made about a person's mental ability. This mental ability is scored and interpreted in terms of an intelligence quotient, or IQ. The IQ,score is a function of the ratio of mental age divided by chronological age, multiplied by 100 for ease of numerical representation. Hence a person with a mental age of eighteen and a chronological age of eighteen would have an IQ of 100 which is regarded as ”normal”. Shailarly, a.person'with a mental age higher than his chronological age would have an above average IQ (over 100). This particular IQ test consists of eighty multiple choice 4Otis, Arthur 8., Otis ick-Scori lbntal‘nbilit Toots: low Edition: Gamma That: ork , l 54. II—S items dealing with vocabulary, arithmetic reasoning, spatial re- lations, number series, logical relationships and other areas. on nmsou mnpmsxc PERSONALITY Immomr (1mm)5 The IIPI was designed to provide a broad analysis of an indi- vidual's personality structure in a single test instrument. As the test was develOped it was administered to persons in mental institup tions and to others with known mental or emotional problems. The various scales on the test were formulated on the basis of patterns of answers that correlated well with known and diagnosable mental problems. The instrument consists of 550 statements, all in the first person, covering a range from the physical condition of the person being tested to his moral and social attitudes. Bach ques- tion is to be answered Tyes”, ”no" or ”can't say". After the sub- ject has answered all the questions about himself, his test is scored so as‘to routinely yield scores on three or four validity scales and ten or more clinical scales. The number of scales scored will depend on the reason for giving the test. For the School of Police Administration and Public Safety scoring was based on three validity scales and nine clinical scales. The L Score is based on a small group of items that will yield a score tending to indicate any naive attempt by the subject to put himself in a good light. High scores are obtained by persons who try (often unconsciously) to answer all questions in ways that will fit their conception of the moral code regardless of their own.know1edge 5Hathaway, Starks R. , and lchinley, Charnley J. , Booklet for the linnesota lulti hasic Personalit Invente . (The PsychoIogical Corporation, lbw Tbrk’, l§55. 11-6 of themselves. The questions usually dealt with undesirable con- duct or moral “failures” that may seem bad, but which are common in virtually all people to one degree or another. The assumption is that a normal person, answering truthfully, will admit yes to most of these items. Attempts at concealment here are called defensive- ness, or even ”faking good” in extreme cases. The P Score is just the opposite of the ”L" score. Persons scoring high on this scale are often attempting'to show themselves in a bad light. This could be because the subject is overly candid or because he is generally maladjusted. The I score is similar to the "L" score, but much.more subtle. It is actually mixed in with five of the clinical scales which when high indicate defensiveness and a lack of candor. Low scores, like a high "F" score, indicate frankness and self criticism. The Es egal=.is based on a comparison of normal persons with patients having numerous physical complaints, many of them psycho- logical in origin. These complaints may be organically based, but are more often classed as psychosomatic. The D scale is based on the scores of emotionally depressed persons. A.high score here is often associated with persons who are unsure of themselves and of the future. They frequently tend to be sad or moody. Higher scores here frequently occur when a subject is in trouble. The E: scale is similar to the Rs scale, but gives evidence of more elaborate and serious symptoms. High scores here are indica- tive of persons who are more likely to avoid or run from crises and when pushed too far are likely to develop physical or psychological Ila? illness as the means of escape from a difficult situation. The Pd scale deals with what is termed psychopathic deviancy. This is characterized by a person's failure to be controlled by the mores of society and an apparent inability to feel guilt or remorse or to respond to punishment. These pecple frequently commit asocial acts with no apparent motive. The Mf scale is a measure of masculine or feminine interests. High scores here tend to indicate that a person's interests are more in line with those of the Opposite sex than those of his or her own sex. High scores here can also be indicative of homosexual tendenp cies, especially for men. The Pa scale is a measure of interpersonal sensitivity, and in extreme cases, paranoia. High scores here may indicate a person who feels he is being persecuted or mistreated by other pecple. The Pt scale is related to compulsions and obsessions. High scores here may indicate neurotic compulsions in selected areas, excessive worrying or a tendency to be overly introspective and self critical. many asocial acts are not a result of psychopathic devim ancy, but of persons driven by compulsions or obsessions. The Sc scale is concerned with how much the subject reacts and and thinks like others around him. Extreme scores may be indicative of IChIZOphrOnin, but more generally the scale measures a person's tendency to distort what he sees and hears and to react in unusual ‘ways. The Ha scale attempts to measure enthusiasm and energy. High scorers become readily interested in new projects and approach prob- lens with animation. In extreme cases this may result in antisocial II-B acts or irrational manic behavior. It should be emphasized that the MMPI is not a complete diagb nostic tool, but rather, that it will tend to indicate where a per— son.may have emotional problems. Further testing and interviewing is usually necessary before a diagnosis can be made. This testing program was comprehensive in scape. As was already mentioned, it dealt not only with academic ability, but ‘with several aspects of the student's emotional and mental makeup. The pertinent question now is the degree to which any or all of these tests might correlate with the subject student's actual col- lege performance. Since any one of the above tests or scales could theoretically correlate well with academic performance, it is neces- sary to include instruments that do not, on the surface, seem to be related to academic ability. The IHPI is a good case in point. III-1 CHHPTER THREE 1 REVIE' OF CURRENT ATTEKPTS TO PREDICT ACADEMIC PERFORIANCI The professional literature dealing with attempts to predict academic success bears a strong resemblance to a literary Irish stew. It consists of a heterogeneous mixture of predictive vari- ables, success criteria and methods of Operation with little or no over-all pattern or organization discernible. There seems to be a tendency for many of the writers in this area simply to take what— ever materials are at hand and make a study of them. lore often than not these studies are attempts to salvage something from edu- cational testing programs that have been Operating for years, but for which no data on their predictive validity has ever been gathered. Virtually all colleges and universities administer some type of admissions testing program for entering students. These test batteries are generally designed to measure academic ability in such areas as lathematics, Heading, Grammar, Spelling and general verbal usage. In some instances highly specific tests may be used for stup dents interested in technical areas such as Engineering and the sci- ences. The assumption behind these tests is that in some way they separate potentially good from potentially poor students. This assumption has in some instances been proven totally incorrect and IlI~2 at best only partially correct. {Attempts to predict academic success are being made on all educational levels, from pro-school to graduate school. The results obtained seem to be roughly similar on all levels, so a review of a narrow segment of this literature should provide a rep- resentative picture of the general field. Since this particular study deals with prediction on the college level, the literature reviewed dealt with studies on this level. The literature research was conducted during the summer of 1965 in the Ohio State University Libraries. The basis of this re- search consisted of a review of articles on academic prediction listed in the ngeholcgical Abstracts from late 1960 through early 1965. Of the total number of articles reviewed, forty five were relevant to this study. The articles and studies cited in this chap- ter have been selected on the basis of how representative they are of certain areas of academic prediction. It should be noted that studies in this field can approach their material from several different directions, and each direction places a slightly different emphasis on the materials involved. Per- haps the most common form of study simply attempts to find statisti- cally significant correlations between test scores or other variables and selected criteria of academic success. A good example of this type of approach is a 1964 study by 6 Michael, Baker and Jones. Using a sample of Freshmen men and women 6 William B. Michael, David Baker, and Robert A. Jones, "A.N0te Concerning the Predictive Validities of Selected Cognitives and Hen- Cognitive Measures for Freshman Students in a Liberal Arts College,” Educational and Psychological Measurement, Vbl. XXIV, No. 2, (1964) 373-375. , III~3 in a liberal arts college they administered a battery of tests and worked out correlations with grade point averages (GPA) for their Freshman year. The tests employed in this study were: 1. California Study methods Survey (CSMS) with four scales - Attitudes toward school, mechanics of study, planning and system, and verification; 2. Type Indicator (TI) with four scales - Introversion, Intuition, Thinking, and Perception; 3. High school GPA's in Algebra and Chemistry; 4. University of Southern California English Classification Test (nor); 5. Scholastic Aptitude Test (SAT) with three scales - verbal, Quantitative, and Total. Of all these scales, CSMS Attitudes toward school yielded the highest correlations for men (r a .42) while the SAT Total was the highest correlator for women (r = .48). An examination of Table I reveals three interesting characteristics. One is that with the exception of the Introversion scale of the Type Indicator test, correlations for men and women are either both significant or not significant. Second, with the exception of the English Classifica- tion Test, correlations for men and women are within .15 points of each other and often much closer. Third, the scores for women seem to correlate better with academic performance than do the scores for men. , la TAnLE I CGERELKTION OF SELECTED VARIABLES WlTH THE GPA's 0F F‘RESFMEN IN A LIBERAL. ARTS COLLEGE WW“. ”a "AH-Au —--— —-.—‘ .__.a__.. '” Men Timon Sample Sample _ Test given size r size r snr Verbal 210 .35b 177 .44° Quantitative 210 .24 177 .39 Total 210 .35 177 .48 CSMS Attitudes toward school 155 .42 141 .39 mechanics of study 155 .36 141 .22 Planning and system 155 .33 141 .18 Verification 155 .09 141 .10 Type Indicator Introversion 140 .16 131 .24 Intuition 140 .06 131 .07 Thinking 140 .02 131 .02 Perception 140 .08 131 .00 High School GPA”s in Algebra 161 .06 69 .06 Chemistry 173 .03 113 .16 English Classification Test 210 .23 177 .47 a After Michael, Baker and Jones (1964). b r's greater than .22 and .17 are significant to the 0173 and 05% levels respectively (when n == 140). c r's greater than .302 and .232 are significant to the 01% and 05% levels (when n = 70). 7 . Another prediction study was made by Arvo E. deals in 1963 7Arvo E. Juola, "The Deve10pment of an Academic Predictor Scale Based on Students' Attitudes Toward Education," The Personnel Guidance Journal, Vol. XLII (December, 1963) 381-386. III-5 based on both ability and attitude measuring instruments. He was exploring the possibility of predicting academic success on the basis of attitudes toward education rather than using just ability measures. In addition to the College Qualification Test (com), Juola employed the Academic Attitude Preference Inventory (AAPI) wherein the student rates activities or situations likely to be encountered in college on the basis of how much he likes or dis- likes them. TABLE 23 COMPARISON OF CORRELATIONS BASED ON ABILITY AND ATTITUHES WITH FIRST TERM AND FIRST FULL YEAR COLLEIB SUCCESS __L Test Correlations with GPAIs Tests given Firgt term GPAq Freshman year GPA men women men women AAPI .52° .52 .48 .48 CQT verbal .50 .47 .48 .43 Information .53 .58 .49 .56 Numerical .49 .48 .46 .52 Total .63 .65 .59 .64 aAfter Juola, Arvo E. (1963). bBased on samples of 212 men and 210 women. 0All r's significant to the .OT% level. Examination of Table 2 seems to indicate that the AAPI may have a certain consistency between men and women that the CQT lacks, at least in Jucla's study. However, since very few instruments yield identical correlations for both sexes, this may well have been a statistical "accident". In degree of correlation, the AAPI seems III~6 to be inferior to both the Information and Total scores of the CQT. Two other points of interest in the preceding table are that corre- lations appear to be consistently higher for first term GPAFs than for the full year, and that correlations with womens' grades again seem higher than for men. (Could it be that women really are more predictable?) An especially relevant study by King, Norrell and Erlandson8 dealt with 375 male Police Administration students here at Michigan State University and used several of the instruments that are employed in this study. Thble 3 summarizes the major results of this study between test scores and first term grades. In general, correlations seem uniformly low in this study, with only the total score for the MSU Reading Test and the Language scale of the Calif- ornia Test of mental Maturity even rising as high as .50. Twenty eight of the thirty seven correlations are below .25. It is inter— esting to compare the results of this study to what Michael. Baker and Jones discovered about the Type Indicator. Both studies seem to support the contention that tests designed to measure aspects of the personality (Type Indicator, Minnesota Multiphasic Personality Inventory and the Thurstone Temperament Schedule) seem to bear little relation to academic performance. It is also interesting to note that vocational preference, as measured by the Kuder test, also seems to have little bearing on the problem. 8Paul King, Gwen Ferrell and F. L. Erlandson, “The Prediction of Academic Success in A Police Administration Curriculum," Educa- tional and Psychological Measurement, V01. XIX, No. 4 (1958), 649- 651. IIIIY TABLE 38 CORRELATION-OF CERTAIN TEST AND SUBwTEST SCORES WITH THE FIRST TERM GRADES OF POLICE ADMINISTRATION FRESHMEN variable Correlation American Council on Education Quantitative . . . . . . . . . . .22b Ling‘liatio e e s e s e e o e e e 043 {Pctaleeeeeeseeeese e38 M.S.U. Reading Test vocabulary . . . . . . . . . . . .46 comprehension . . . . . . . . . .44 Tbtal . . . . . . . . . . . . . .50 M.S.U. English Test . . . . . . . . . .47 M.S.U. Arithmetic Test . . . . . . . .26 California That of Mental Maturity Language . . . . . . . . . . . . .50 NOn Language . . . . . . . . . . .17 Tataleeseeeeeeeeee c46 Kuder Preference Record C Form Outdoor 0 O O 0 O O O O O O O O .02 Mechanical . . . . . . . . . . . .05 computational e e e e s e e e e -s14 Scientific . . . . . . . . . . . .18 Persuasive . . . . . . . . . . . .Ol ”Distic s s e e e e e e e e e e e04 Literary . . . . . . . . . . . . .08 maicaleeeeooesooee’ell Social Service . . . . . . . . . .04 Cl.rical e e e s e e e o o e e s "oll Minnesota Multiphasic Personality Inventory Hypochcndriasis . . . . . . . . .08 Depression . . . . . . . . . . . .13 Hysteria . . . . . . . . . . . . .05 Psychopathic Deviate . . . . . . .13 Masculine-Feminine . . . . . . . -.Ol ParanOiaeeeeeeeoeeee e23 SchIZOphrOnla e e e e e e e e e e06 maniaeeeeeeoeessee oo4 Continued on next page ILIAS Table 3 wContinued Variable Correlation Thurstone Thmperament Schedule ACtlve e e e e e o e a o e e a ”-005 Vigorous . . . . . . . -.O8 Impulsive . . . . . —.ll 0 O o O 9 e O o J . . . . . Dominant . . . . . . . . . . . .00 Stable . . . . . . . . . . . . . .04 Sociable . . . . . . . . . . . . .0. Reflective . . . . . . . . . . . .20 a , After King, Norrell and Erlandson (1959? r's greater than .148 and .113 are signix ficant to the .01% and .05% levels respectively (when N - 300) Single test or sub-test correlations with college grades are generally poor, at best ranging around .50 and with large differu ences between tests. It is also interesting to note that differ- ent researchers often get entirely different results even when using the same tests as predictor variables. Table 4 shows, in sums mary form, the results of three studies correlating the verbal and TABLE 4 CORRELATIONS 0F FFEfim EN GEA°S WITH TWO .CALES 0F THJ SCHOLASTIC APTITUIE IxfiST -1... " .1... -:.,h .;.. .1... Authors of study :AT verbal _m:'Anguant1tative. Griffen and Flaugherty9 .63** .59** 10 . Watley and Mervin .48*** .45*** Michael. Baker and11 .35** gmen} .24“ (men) ‘ .ones .44** women; .39*‘ (women) * Significant to the .05 level *‘i . Significant to the .01 Level III~9 quantitative scales of the scholastic Aptitude Test with grades for college Freshmen. This table shows the same predictor variables yielding significantly different correlations when used with differ- ent samples of students. This is rather typical of studies in this area and would seem to indicate that test scores are not the only variables involved in academic performance. SPECIALIZED TEST BATTERIES One line of thought that has involved several researchers is that perhaps specialized tests should be designed for each distinct academic area. Underlying this thought is a feeling that trying to predict the performance of a group of college students majoring in different areas may tend to cancel out predictive validity for some areas. That is, if tests are given to students in several academic areas, very high scores for some groups of students and very low ones for others could cancel each other out and yield nothing but an average figure incapable of predicting anything. Providing at least partial support for the idea of giving dif- ferent tests in different academic areas is a 1964 study by Lewis, *‘IHI' No data given on significance. glary Louise Griffin and Sistem E. Rita Flaherty, ”Correlation of CPI Traits with Academic Achievement," Educational and Peycholo~ 51°31 measurement, Vol. XXIV, No. 2 (1964)-3‘6““‘3’19- 72. 10 Donivan J. latley and Jack C. Kerwin, "The Effectiveness of variables for Predicting Academic Achievement for Business Students", The Journal of Experimental Education, (Winter, 1964) 189-192. 1 Michael, Baker and Jones, loc. cit. 111-10 12 Braskamp and Statler. In this study they administered a speci- ally designed Law School Admissions Test (LSAT) for correlation TABLE 5“1 GPA CORRELATIONS WITH A SPECIALLY DESIGNED TEST FOR PREDICTING SUCCESS IN.A COLLEGE OF LA! Test given ' Correlation Law School Admissions Test Total . . . . . . . . . . . . . .39b writing ability . . . . . . . . .28 General background . . . . . . .18 Undorgraduato GP‘ e e e e e e e e 0 e26 aAfter Lewis, Braskamp and Statler bAll r's over .20 significant to 1% level (when n - 180) 'with first semester grades in a Law school. (See Table 5). 0f the four measures employed, the LSAT total did yield the highest correlation (r - .39), and may indicate a relationship between the test and Law School performance, but a tenuous one at best. A 1964 study by Boel3 also gives some support to this idea, but in a rather indirect manner. He administered a test battery to Engineering students and then computed correlations with grades 12John I. Lewis, Larry Braskamp and Charles Statler, "Pre- dieting Achievement in a College of Law,“ Educational and Pa cho- logical Measurement, Vol. mv, No. 4 (196T‘u4 947~'94'°9". ”'""‘z' "' 13Erling E. Boe, "The Prediction of Academic Performance of Engineering Students,“ Educational and Psychological Measurement, Vol. xnv, No. 2 (1964) 377-383. ' """ ' III-11 earned in Engineering courses, in non-Engineering courses, and in all courses combined. Table 6 shows that when the correlations were broken into two groups they appeared to increase for one group (non-Engineering courses) and decreased for the other group (Engineering courses). TABLE 68 TEST CORRELATIONS‘IITH GRADES IN ENGINEERING AND NON—ENGINEERING COURSES FOR ENGINEERING'IAJORS Csrrelations Engineering Other Tests given courses courses Cbmbined American Council on Education Linguistic .209* .626** .358*' Quantitative .037 .184? .107 I"! Tbtal .162 .450 .298 as as Cooperative English Test .282 .561 .430 Wisconsin State College ** ** ** lath Placement Test .344}, .407“ .418 I"! it! {.5 High School GPA .327. .556 .451 ’ *Signifisant to .05 level i”Significant to .01 level 3After Boo (1964) The greatest change was with the Linguistic scale of the ACE which appeared to increase by .168 (from .358 to .526) for non-Engineering courses and decrease by .149 (to .209) for Engin» eering courses. Two other facts stand out in this table: (1) co- III~12 rrelations for non-Engineering courses were consistently more sig- nificant, and (2) the lowest correlation with Engineering GPAuwas, surprisingly, the Quantitative scale of the ACE. English and Lin- guistic measures seemed to provide the best correlations for non- Engineering courses and the specially designed WSC Hath Placement Test was the highest for Engineering areas. These results would seem to indicate that different variables are influencing grades in the different areas, and that special tests may be appropriate. Emwever, since the operating variables are so difficult to isolate, not all attempts to predict with specialized batteries have succeeded. In a 1961 study, Ellis14 arrived at the conclu- sion that specialized test batteries did not seem to be worth the extra effort involved in their preparation and administration. He selected a sample of students majoring in Liberal Arts, Engineering and Cemmerce; administered a specialized test battery to each group; and then administered a general test battery to all three groups. TABLE 7 DIFFERENTIAL PREDICTION IN THREE TYPES OF COLLEGE CURRICULA GRA.correlations with Curriculum General battegz §pecific batter: Change Liberal Arts .58* .61 +.03 Engineering .42 .47 +.05 Commerce .53 .55 +.02 *r's significant to .01% levels 14Kenneth Ellis, "How Effective is Differential Predic- tion in Three Types of College Curricula“, Educational and Psychological Measurement, ve1 XXI, No. 2 19 1 . III-13 Table 7 shows that the specialised batteries did yield slightly higher correlations, but at best only increased by .05 for students in Engineering. Considering these small changes in correlation val- ues, Ellis would seem to have a valid point in his contention that specially designed test batteries are not justifiable in the light of their limited success. HIGH SCHOOL PERFORMANEB AS AN INDICATOR In spite of all the work that has been done with psychologi- cal inventories and tests of academic abilities, the best single predictor of college success at the present time seems to be high school performance. The performance criteria may be stated in terms of high school grades earned or on the student's standing in his class, but in both instances correlations with college performance are as high or higher than those obtained through the use of tests and inventories. Table 8 summarizes the results of four studies that compared the predictive potential of high school factors and test results. In each of these studies, high school performance seemed to provide the highest correlations with college GPAIs. This is not surprising, as a measure of over-all high school per- formance would include the effects of many non-academic factors such as family attitude toward education, other interests, etc. that would also effect college performance. MULTIPLE FACTOR CORRELATIONS Fortunately, it is not necessary to rely exclusively on single factors when attempting to predict academic success. By combining scores from several measures and assigning different .omcq cocoon deem .adst some canvas meanness sense use oomsfinownom Hoonom swan mom m.a oasasoo . .eae eon .mess ma .eee eon .aefieea a, “weary N .62 .>Hxx .Ho> .psoacnsmcos Hoes cacao mm was Hoscapoosom .emswsamna msfimasz on mmocosm wo oncoofiooam no meanness Hosanmcnmoam dos odspflpq< .Pscso>ofino<: .omsm .m pooch coo hoaaoz .m such .mmosch .2 snow we .eae cos .eem ma steed so. on eeeesoaemsm ** seems no. oe eeeoaosemsm * mm. Hcpao> me. noseesesees page essenen< oneneflosem mm. moosasnpmmmoge mm. psflsnpmom canon psossnomsme ossnossfiwlcaomaflso wm. maxscm om. asapso>sH honeycomxm shag we. sees :ofieanenaoo sandman mmmo mo. nonvosospofi em. 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P.. we. om. pmop aH nape .e oo.H mm. cm. upaeono ommnoaq .m 00.? mm. «me «an .m 00.? «mo apamno>asp HH< .P .IIIIkaIILum m, m] m n v m [rm F oanmanm canmanm> mom mmabmsbo 9mmHh mmmao muda_maHB and maidmahd BZHOQ andmc ODE HEB mBHB mmndeM4> nmaonqflm ho mZOHadqmmmoo m9 Handy THE SECOND COMPUTER RUN It was decided to eliminate the MMPI and average credits per term from further consideration for reasons indicated above, and to base the second run on the Otis Test, the CQT scores and the M.S.U. English and Reading tests. This second phase of computer work was based on a sample of 102 students. In addition to developing re; gression equations, the second-phase computer output also included single item correlations between all variables as in the first run. Unfortunately, the second phase results did not match the wri- ter's expectation of what they should have been. The idea behind random selection of the three groups was to insure, insofar as pos- sible, equal distribution of talent among the three groups. If the equal distribution of talent and other relevant factors could be achieved, one would expect the correlations within the three groups to be stable from one computer run to the next. Table 14 clearly shows that the correlations between test scores and success cri- teria within the first and second groups were anything'but stable. All correlations between test scores and criteria in the second group were higher than in the first group. In some instances the increases were minor, but many correlations more than doubled in numerical value from the first to the second run. While the right hand column in Table 14 shows that only two of these increases are significant to the .05 level, the fact still remains that all of the correlations increased by at least a few points. (Significance data were derived from a table of Fisher's Z.) While it is remotely possible that these increases may not be significant, a more likely assumption is that bias was somehow TABLE 14 V-7 A COMPARISON OF SELECTED PORTIONS OF 11 THE RESULTS OF THE FIRST AND SECOND COMPUTER RUNS Correlations with all—University GPA ‘Eggiable First run Second run Increase 2* Otis IQ Test .20. .30 .10 .718 CQT verbal .18 .41 .23 1.705 Information .21 .45 .24 1.825 Numerical .09 .39 .30 2.16 * Total .22 .53 .31 2.464* M.S.U. English .23 .30 .07 .506 M.S.U. Reading .41 .47 .06 .501 Correlations with PLA GPA Otis IQ Test .17 .22 .05 .350 CQT verbal .12 .33 021 1.490 Information .14 .35 .21 1.500 Numerical .09 .30 .21 1.470 Tbtal .16 .41 .25 1.84 M.S.U. English .18 .23 .05 .350 M. S.U. Roading . 35 .38 .03 . 23 *When Z is equal to or greater than 1.96, significant to the .05 level. difference is introduced into the sampling and sorting procedures early in the study; A.comparison of the correlation matrices for the two runs (Tables 13 and 15) supports this assumption. The reader will note .haebfipcommon .mHo>oH F0. was mo. on» o» psdofimwsmdm ohm vmm. use mar. some Hepoonm m.H oo.a mm. me. an. mm. as. an. mm. as. anaesom .p.m.s .m oo.H mm. «a. mm. we. we. mm. on. sandman .p.m.2 .w oo.H am. am. ma. we. av. em. Heaps .> oo.H am. om. me. on. mm. asoanoasz .m as oo.H me. mm. mm. ms. soapsanomcH .m w 84 E. 2. :1 H8...» So é oo.H mm. on. same 0H mapo .m oo.H om. «as «am .m oo.H «as apamao>asp Han .H mbaenspwr. moapmfinm> A capmflnm> 25m mmabmzoo 9200mm mmmeo mu< ezHom mfi¢mc 0&9 fine mBHB mfiqdem¢> nmaomqfim mo mZOHadgmmmoo mw mnmda V-9 that while test score-GPA correlations increased, the inter-corre- lations between test variables do not vary to any appreciable degree. While some of them do vary slightly, the variations seem to be small and random. This would seem to indicate that whatever bias may exist in the samples is primarily related to success factors, and not to the test scores. Exactly what this bias is, or how it opera- tes, is unclear. In fact, there is no assurance than any bias even exists. However, the likelihood of accidental bias was such that certain portions of this study were repeated. Before examining the ‘ results of this replication, we would do well to return to the sec- ond and third stage results of the original study plan. The reader will recall from Chapter Three that the primary purpose of the second run was to deveIOp regression equations for predicting academic success on the basis of test scores. These equations were developed by an automatic computer process that screened out test variables that failed to contribute significant- ly to the equation, and retained those that did. In this particu- lar instance, the criteria for including any given test variable in the equation was the statistical significance of the variable when compared to one of the success criteria. Theoretically, the regression equations could have included any number of the seven test variables found to bear a significant relationship to the suc- cess criteria on any reasonable level of statistical significance. (The .001, .005, .01 and .05 levels of significance were tried for all seven variables against both success criteria.) Since only the CQT Total seemed to be significant, the re- gression equations were calculated for just that one variable. V410 The formula used was: = £1 _ §1-— Y I'xy (8x X r'xy X + Y 2 2 2x Sy = 2X Nx-l Ny-l and 2x2 = 2x2 _ Léfili 2Y2 = 2Y2 _ (£322 where Sx Y refers to the predicted GPA rxy is the correlation between CQT Total and one of the success criteria When the actual values were inserted into the formulas, the equa- tions evolved as follows: for predicting all-University GPA Y a .016 (CQT Total) + 1.49 for predicting PLA GPA Y = .01 (CQT Total) + 1.89 CROSS VALIDATION The second computer run and related statistical manipulations yielded a regression equation for predicting academic success. The purpose of cross validation was to see if this equation, derived from one sample of students, will successfully predict the perform- ance of another sample on the basis of their own test scores. The first step in this process was to use the regression equations ve11 derived above to predict all-University and PLA GPA's for the third group. After computing the predicted GPA.for each student in the third group, the following formula was used to compute the correla- tion between GPA's predicted and actually achieved. N£(XY) — (2x) (XY) (Nzx2 — [XX]2) (NzY2 — [zY]2) Table 16 shows the results of this cross validation in sum- mary form. TABLE 16 CROSS VALIDATION OF REGRESSION EQUATIONS: R's BETWEEN PREDICTED AND ACHIEVED GPA's AND Z VALUES OF CHANGES —. All UhiversitzZEEiEFifiir7fiir- Group 2 .534 .412 Group 3 .427 .273 Z 0.89 1.08 Z of less than 1.96 indicates changes are not significant. When subjected to cross-validation, the predictive efficiency of the regression equations seemed to be reduced for both GPA's. The correlations between predicted and achieved all-University GPA dropped from .534 to .427, while the PLA correlation drapped from .412 to .273. V-12 From this it would seem that a student's total performance on the CQT'bears a consistently significant relationship with both his over-all academic performanceand his performance in Police Admin- istration courses. The relationship seems to be stronger for over- all university performance than for the portion of this performance represented by the student's grade point average in Police Adminis- tration courses. The actual importance of this relationship will be explored in detail in Chapter VI, after we have covered the addition- al findings resulting from re—running portions of this study. CROSS CHECKING FOR BIAS Since it seemed highly possible that the original sampling procedures in this study may have been biased, it was decided to run some cross checks on the extent of any possible bias. The first step was to recombine all the usable test records for a new divi- sion into two groups. The procedure here was to assign random num- bers to the test records in each term, and then to pick half of each term's records through the use of a table of random numbers. This process resulted in two groups of test records (N = 140 and 141) with an approximately equal number of test records from each term. For the first group (N a 140), correlations were computed.be- tween CQT Total scores and the two grade point criteria. These cor- relations turned out to be .651 for all-University GPA and .307 for PLA GPA. The formula shown on page va1o was then used to compute regression equations for predicting the two GPA's for students in the second group (N a 141). The final equations were: for all-University GPA Y = .053 (CQT Total) + .08 va13 for PLA GPA Y = .037 (CQT Total) = .86 The results of this cross checking are shown, in summary form, in Table 17 TABLE 17 SIMPLE CORRELATIONS BETWEEN CQT TOTAL AND THE TWO GPA's AND RESULTS OF CROSS VALIDATION OF THE REGRESSION EQUATION 1 Correlations wit: ' u" '1' Un"'i"v' ers'i' ty' CPL PLA GPA CQT total and Academic Performance First Group .651 .301 Predicted and Achieved Performance Second Group .5454 .281 2 ML 0.27 As in Table 16, the correlations drapped somewhat when subjected to cross validation. The Z values of these changes are low enough to warrant the assumption that these drops are not statistically sig- nificant. Again, it appears as if a student's total score on the College Qualification Test is at least partially indicative of how he will perform academically in college. VI-1 CHAPTER SIX ANALYSIS OF RESULTS AND CONCLUSIONS COMPARISON WITH OTHER STUDIES By now the reader may have decided that the results of this study are little different from the results of most of the studies cited in Chapter III. In one respect at least, this is quite true. The relationships revealed by this study are far from strong and only explain or account for a small portion of the factors influ; encing academic success, as discussed below. However, the cross validation built into this study insures that a greater degree of confidence can be placed in these findings than in the results of most correlation studies concerning academic success reported in the literature. Host of the writers in this area seem dontent sim-' ply to report correlations between variables and, evidently assume that their discovered relationships will held constant. very few writers seem to make any effort at cross validation. In this study we have seen that many of the correlations be- tween test scores and success criteria do not held constant. Howb ever, we have also seen that this fluctuation does not destroy the predictive capabilities of the test measure studied.most closely — the CQT Total score. And. finally, the cross validation procedures in this study (done twice, actually) leave one with a feeling of relative confidence in these results. THE MEANING OF THE STATISTICAL RESULTS Several of the test scores studied seem to bear some relation- ship to the academic success of Police Administration majors at VI—2 Michigan State University. The most notable among these are the specially designed M. S. U. English and Reading tests, and the total score for the College Qualification Test. Other test meas- ures, such as the MMPI, seem to have no significant bearing on the subject. After studying the CQT so thoroughly, the question now arises as to the practical significance of these findings. During the course of this study, correlations between the CQT Total and all— University GPA.ranged from a low of .22 to a high of .65. One way of looking at the meaning of a correlation is to square the figure. This new figure is an estimate of how much of the variation in the dependent variable is accounted for, or associated with variation in independent variable. For example, the above correlations of .22 and .65 indicate that variation in the CQT Total score (or more pre- cisely, the academic ability measured by this score) accounts for, or is associated with, from 5% to 42% of the variation in all-Uni- versity grade point averages. In summary, it would seem that the level of intellectual ability indicated by a student's total score on the College Qualifi- cation Test consistently bears a small but fluctuating relationship to his academic performance. This relationship is stronger for all- University grade point average than for Police Administration grade point average. That this relationship is small is not surprising when one considers the multitude of variables that can effect aca- demic success. Just a few of these are intelligence, students' attitude toward education, family attitudes toward education, health and personal problems. Unfortunately, we are in no position to say VI-3 how or to what extent these other variables may be operating in any given student. And, finally, as was discussed at the close of Chap- ter III, any attempts to use test scores such as those studied here as screening devices for admission should proceed with extreme cau- tion. There are too many other variables operating about which we know all too little. EVALUATION OF THE TESTING PROGRAM In general, the idea of gathering and studying data relative to academic success in college is a good one. However, if these studies are to be effective, to yield.meaningful results, the stud? ies must be well planned and carefully implemented. The former testing program in the School of Police Administration and Public Safety fails to meet these requirements. There are several reasons for this, and the most important of them lies in the area of long range planning. When the study was first prepared, its originators did have certain ideas on what the study should accomplish. They were particularly interested in exploring the personality and inter- est makeup of entering Police Administration students. There was also, apparently, some thought given to isolating tests with pre- dictive value. Unfortunately, and partly because of personnel turn- over, no single person was ever given continuing responsibility for supervising the program. As a result of this, the program responsi- bility passed through the hands of a series of disinterested, or at best moderately interested but untrained, custodians. Some students never took the tests, some scores were misplaced, and even the scor- ing procedures were changed several times. There was some short-run use made of the individual results for counseling and advising pur- VI—4 poses, but there seems to have been no plan for over-all analysis. This made any study of the whole program virtually impossible. This is not to say that exploratory testing programs should not be conducted in the future by the School of Police Administra- tion and Public Safety. In fact, they should be; but according to some sort of over-all plan. There is no reason that such studies could not serve short term advising and counseling needs as well as accumulating data for intensive analysis. SUGGESTIONS FOR FUTURE STUDIES One would hope that the School of Police Administration and Public Safety would extend its leadership role in law enforcement education into the study of the effects of this education and ways to improve its quality. With careful planning and implementation, there is every reason to believe that such studies would.make sig- nificant contributions to our knowledge in this area. However, continued research into the relationship between academic ability and academic success may contribute less than studies will in certain other areas. It may well be that studies of this area have reached a temporary "dead end" until such time as we learn more about some of the other factors effecting academic success. Some of these "other factors" of particular interest are the student's emotional stability and.maturity, his attitudes to- ‘ward education, his occupational and vocational interests and his family—educational—cultural background. An area that might be of particular interest to the School of Police Administration and Pub- lic Safety is the personality make—up of students in this field. we ought to be concerned with exploring the nature of the people VI-5 'who are attracted to careers in law enforcement and related areas. There are presently in existence test devices or procedures that 'will at least estimate the extent of these various factors in a student. Studies in these areas would require time and money, but would not be of prohibitive difficulty. This would hold especially true if the School of Police Administration and Public Safety availed itself of the consulting services available from both the Counseling Center and the Psychology Department prior to initiating further studies. Finally, there is one area that may well be highly important, but is seldom studied That is the relationship between academic ability, academic success, the "other factors" mentioned and the success and job satisfaction of the student after graduation. This type of study would.be very long range, perhaps covering ten to twenty years in all. It would require up-to-date record mainten- ance the like of which does not exist now. And it would require significant amounts of time and money. However, until information of this nature is gathered and carefully studied, we really cannot assess the effectiveness of the educational offerings of the Michi- gan State University School of Police Administration and Public Safety. we do not, at the present time, have much accurate informa- tion on how college success relates to job success; nor do we know how academic ability, when considered apart from academic success, relates to job performance. And finally, apart from some scores on academic tests, we do not have any accurate estimation of the type of person who is attracted to the field of law enforcement. In summary, there is a definite need for further study in the VI-6 areas mentioned above and many reasons why the Michigan State Uni- versity School of Police Administration and Public Safety should assist in these efforts. Admittedly, the first attempt was not particularly successful, but it can serve as a beginning. By learning from earlier mistakes, and by utilizing available informa- tion sources and consulting services, the Michigan State University School of Police Administration and Public Safety can become a leader in the study and analysis of educational offerings in the various areas of law enforcement and how much these educational offerings actually accomplish. As a result of these studies, the School will be able to continually improve its course offerings, outside services, and general value to the community. B~1 BIBLIOGRAPHY Books Buras, Oscar R., The Fifth Mental Measurement Yearbook. Cronback, Lee J., Essentials of Pa cholo ical Testing, 2nd ed. New York: Harper and EFotEers, I965. Freeman, Harold, Introduction to Statistical Inference. Reading, Pa.z Wesley b is ing ., Inc., . Hathaway, Starks R., and Monachesi, Elio 1)., Analyzing and Pro- dicti Juvenile'Delin uenc ‘with the MMPI. Minneapolis: CEIweII Piess, Inc., 1353. Ostle, Bernard, Statistics in Research. Ames, Iowa: The Iowa State College ess, 4. Rand Corporation, A.Million Random Di its with 100 000 Normal Deviates. Glencoe, IIl.: The Free PESss, I955. Journal Articles Aiken, Lewis R. 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Job Print. £9233 Occup. £13; , 2 (verif. S__D___U__) pg; Title D.S Title D.S. Trait Raw Score _ }Ag£i;_£gent Journ L Elect. Eng Archit. F Farmer Lagyer K Forester Ret. Cloth. He Minister ‘Ins. Agent D Editor Dentist EV Physician vetern. Pd lClin. Psych. Indust. Eng. Mf ”Ind. Psych. Pediatro Pa HY.M.C.A. Sect. Psychiatr. Pt School Sup. Rad. thr. Sc ‘Agct. Int. Decor. Ma meteor. H.S. Counsel Prob. Areab____ Pers. thr. H.S. Sci. Tea. No Prob. Area;____ Sales H.S. Math. Tea Strong vocational Interest Test c a rker nister musician C nior coun ca 81‘ c s as . as Life Insur. Sales r. or thor-Journ. Pres ncern "I7'1?@“E'EIJ‘IEMMWQIEEFS