L ' . L MENTAL RETARDATION As 'A FUNCTION OF RAGE * SEX AND SOCIAL ECONOMICSTATU‘S. G i ' Thesis for the Degree of PhD. , : MIGHAGAN STATE UNIVERSITY * JONAS GHENAUAT, 1R. ’ 71-3970 ' ’ ‘ I I - ’ ..‘ -\:}I‘.I‘ ‘,.. 4‘; ‘._., “A flung”: ., A... WW...» . .A/ Amt “3,. ,1 (Aggy, ”who,“ AIR {Env‘unhhfdtn ".2". Arman“ ' w' |.n'.£ v — 4Q "A . u - t. A “ ‘ ‘ " iv...” \. AREA A wan-R 1%.: _ b , ,uumu 4m". 4‘ “R an: ‘| ”“33“ y. mu , '1', “w M‘ ' AER» 43.455193} {*fr‘: flint-3'43. u. . A. . A. A A? =3iffiifiiflmfl'fifi‘:mgggfiqgimgsyt;~g;{:g‘.3{.¢i§1}‘gg¢3:b{3:55; Uni; 1w This is to certify that the thesis entitled Mental Retardation as a Function_of Race, Sex and Social Economic Status presented by Jonas Chenault, Jr. )5 .fi’ gr €73. has been accepted towards fulfillment of the requirements for Doctor of Phil. degree in Education ;,« ~7 , (2‘26 ZZ/ZCXC / 21' ”Eb/(19%» Major professor 0-169 LIBRA R Y Michigm State 5 37313:" ABSTRACT MENTAL RETARDATION AS A FUNCTION OF RACE, SEX AND SOCIAL ECONOMIC STATUS BY Jonas Chenault, Jr. The present study examined the concept of educable’ mental retardation as a function of race, sex and socio-. economic class over time in an urban school system. A systematic randomly drawn sample of 858 test protocols and case histories were drawn from the file records of the Detroit Public School Psychological Clinic. The total sample consisted of 326 Blacks, 276 Caucasians, 585 males and 273 females. All subjects had been administered an individual psychological evaluation and subsequently recom- mended for placement in classes for the educable mentally retarded in the Detroit Public School System during the time span of September, 1911 to January, 1970. Cases where organic brain damage was recorded by the clinic physician were excluded from the sample. The results obtained indicated the following: 1. The concept of educable mental retardation, as used by the Detroit Public School System for special class placement was found to vary as a function of sex, Jonas Chenault, Jr. socio—economic class and time blocks. Race was not found to be a significant variable. 2. The exit pattern (e.g. return to regular grades) of students classified as educable mentally retarded was found to vary as a function of race. Sex and socio-economic class did not contribute significantly to the variance noted in E.M.R. students' exit patterns. 3. The delay in placement of certified educable mentally retarded students did not vary as a function of race, sex and socio-economic class. 4. The initial age and grade of students at the time of psychological examination varied only partially as a function of race, sex and socio-economic class. More specifically, age at the time of evaluation varied significantly with socio-economic class and time, but not with sex or race. Grade at the time of evaluation varied significantly With race and time, however, no significant main effects ‘were found in its relationship with sex or socio-economic class. 5. Measured intelligence of educable mentally re— tarded students, over time, varies negatively with the length of time spent in special classes despite an initial increase in first retest scores. Jonas Chenault, Jr. 6. Within special classes for students classified as educable mentally retarded, Blacks and Caucasians dif- fered significantly only as a function of the student's place of birth. The factors of number of schools attended, mobility, semesters repeated in regular grades prior to special class placement, and the number of siblings in the family were not found to be statistically significant. Based on the findings of this study, the following conclusions have been made: 1. The concept of educable mental retardation, as used by the Detroit Public School System for the placement of students in special classes, has fluctuated signifi- cantly over the forty-nine year time period examined. Moreover, the findings of significant main effects for sex and socio-economic class indicate that males from low socio-economic status homes are more likely to be diag- nosed and placed in classes for the educable mentally re- tarded than females from comparable socio-economic back- grounds. Although race was not found to be a significant factor in special class placement, the disproportionate increase of Blacks found in special classes over time SUggest a differential placement practice along racial lines, particularly as the trend relates to Black males. 2. The exit pattern for E.M.R. students placed in Special classes was found to vary as a function of race. Jonas Chenault, Jr. This finding is indicative of a school policy which basically retains Black students in special classes once they are diagnosed and placed. Caucasian students, on the other hand, were found to have access to exist such as transferring to parochial schools, moving from the school district, or entering the job market. 3. Students from high socio-economic homes are more likely to be referred at an earlier age for psycho- logical evaluation if retardation is suspected. 4. Social promotion appears to have become a more prevalent practice as the racial composition of the school system changed from Caucasian to Black. 5. Measured intelligence, over time, for the E.M.R. student appears to follow the same fluctuative pattern as the Self Concept of Academic Ability of E.M.R. stu- dents. 6. A significant proportion of Black students found in classes for the E.M.R. have migrated to Detroit from southern states, while their Caucasian counterparts have migrated primarily from the Appalachian region. MENTAL RETARDATION AS A FUNCTION OF RACE, SEX AND SOCIAL ECONOMIC STATUS BY Jonas Chenault, Jr. A THESIS Submitted to Michigan State University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY College of Education 1970 A I ‘N ; . . , . . - f" ‘ 1" . ‘- v.7 ACKNOWLEDGMENTS To Drs. Wilbur B. Brookover and Robert L. Green, my guidance committee chairman and co-chairman, I extend my deep appreciation for their unyielding support and encouragement. To the other members of my doctoral committee, Dr. Lawrence Lezotte and Dr. Sigmund Nosow, I am thankful for their limitless patience, guidance and encouragement. I am further indebted to the many friends whose assistance, encouragement, and suggestions helped the way for this research project. Specific thanks are due to Mr. Marvin Beekman, Director of Special Education for the State of Michigan, and Professor Juanita Collier of 'Wayne State University for their concern and constant support throughout the research project. To my wife, Mildred, and daughters, Stephanie and Jill, loving thanks for their understanding, patience, and encouragement. Lastly, but serving as the basic motivator, I thank my father, whose early planting has achieved fruition. ii TABLE OF CONTENTS ACKNOWLEDGMENTS. . . . . . . . . . . . LIST OF Chapter I. II. III. IV. TABLES O O O O O O O O O O O 0 HISTORY O O O O O O O O O O O 0 Historical Origin . . . . . . Current Theoretical Dispute . . . . Hypothesis. . . . . . . .. . . Theory . . . . . . . . . Definition of Terms. . . . . . . REVIEW OF LITERATURE . . . . . . . Review of Relevant Psychiatric Epidemio- logical Research. . . . . . . Review of Related Research and Litera- ture. . . . . . . . Review of Non- Empirical Literature. . Summary. . . . . . . . . . . METHOD 0 O O O O O O O O O O O The Sample. . . . . . . . . . Major Variables . . . . . . . . Data Collection Procedure. . . . . Instrumentation . . . . . . . . Data Analysis Procedures . . . . . Summary. . . . . . . . . . . ANALYSIS OF THE DATA AND RESULTS . . . Hypotheses and Results. . . . . . Hypothesis Hypothesis Hypothesis Hypothesis Hypothesis Hypothesis Summary. . . . . . . . . . . C‘U‘lubWNI-J iii Page ii 18 32 37 41 43 43 45 46 46 48 48 50 .50 50 59 61 65 69 71 Chapter Page IV. SUMMARY AND CONCLUSIONS . . . . . . . 74 Summary of Research Hypotheses . . . . 75 Summary of Method . . . . . . . . 75 Summary of Research Findings. . . . . 77 Conclusions . . . . . . . . . . 79 Discussion. . . . . . . . . . . 80 Implications for Future Research . . 83 Implications for Future Special Education Programs . . . . . . . . . . 84 BIBLIOGRAPHY. . . . . . . . . . . . . . 87 APPENDIX . . . . . . . . . . . . . . . 96 iv Table 4.1 4.2 4.3 LIST OF TABLES Composition of sample pOpulation by race, sex and socio-economic status . . . . . . . Composition of the Detroit Public School Sys- tem by race and age during the U. S. census years 1910-1960 . . . . . . . . . . Socio-economic status distribution by race, sex and time block . . . . . . . . . Mean I.Q. scores by race, sex, socio-economic class and time block. . -. . . . . . . Analysis of variance of I.Q. scores on the basis of race, sex and socio-economic class . Chi square values for exit pattern of E.M.R. students as a function of sex, race, and socio-economic class. . . . . . . . . Selected categories of type of action taken by race . . . . . . . . . . . . . Mean values and variances for delay in placement as a function of race, sex, soc1o- economic class and time blocks . . . . . Analysis of variance for delay in placement as a function of sex, race, socio-econom1c class and time. . . . . . . . . . . Mean values for students at the time of evaluation by age and grade . . . . . . Analysis of variance for age at time of evaluation . . . . . . . . . . . . Analysis of variance for grade at time of evaluation . . . . . . . . . . . . Pearson product-moment correlations between variables l-l-, N = 64 — 861 . . . . . . V Page 51 51 52 54 55 56 57 60 60 62 64 64 67 Page Chi square values comparing Black and Cauca- sian E.M.R. students on birth place, mobil- ity of school and residence, grade repeats and number of siblings in family. . . . . 69 Means and standard deviations for Black and Caucasian E.M.R. students for mobility of residence and schools attended . . . . . 70 Summary of hypotheses and sub-hypotheses found to be significant at the .05 level . . 73 vi CHAPTER I HISTORY Special Education in the United States during the last twenty years has greatly increased the number of classes serving the handicapped. Most authorities would agree that the greatest growth spurt of special educa- tion programs has occurred during the Post-World War II period. Mackie (1969) in reporting the increase in special education programs during this period states, Pupil enrollments in the total program of special education in the United States in- creased almost 500 per cent between 1948 and 1966, five times faster than the 70 per cent increase in the nation's school-age popula- tion during the same period (Mackie, 1969, P- 4). Historical Origin Historically, the origin of public school sponsored SENecial education classes for the mentally retarded in tide United States can be traced back to the early part (Di? the twentieth century (Kanner, 1964). The theoretical 3rCM3ts of special education, however, have a chronology ‘WTIich reflects the influence of Plato, Aristotle, Itard, EEsquirol, Darwin, Galton, and Binet, among many. Col- lenztively, these diverse theories of human nature, when buttressed with the statistical methodology of Quetelet, form a normative model which has been employed as a justi- fication for establishing social, educational, and psy- chological policies for dealing with "deviant behavior." Indeed, it is felt that, . . . the history of research upon intelligence provides an instructive example of the close link between science and the society in which it is rooted (Tuddenham, 1963, p. 515)- Interest in the concept of mental retardation and education during the early nineteenth century received a fresh impetus following Itard's alleged attempts to train the famous Wild Boy of Aveyron (Humphrey and Humphrey, 1932). The subsequent publication of Esquirol's Des Maladies Mentales in 1838 set the stage for scien— tific inquiry into the differential classification of the feeble-minded which previously had been characterized by investigation and theorizing "dominated by the anatomical .preoccupations of the phrenologist" (Tuddenham, 1963, ED. 472). In conjunction with and extension of Esquirol's I?osition was Alfred Binet's and Th. Simon's development <>f the first intelligence tests. Binet and Simon, in Chascribing their charge from the French Minister of Public Ilistruction state: In October, 1904, the Minister of Public In- struction named a commission which was charged with the study of measures to be taken for in- suring the benefits of instruction to defective children. After a number of sittings, this commission regulated all that pertained to the type of establishment to be created, the conditions of admission into the school, the teaching force and the pedagogical methods to be employed. They decided that no child sus- pected of retardation should be eliminated from the ordinary school and admitted into a special class, without first being subjected to a pedagogical and medical examination from which it could be certified that because of the state of his intelligence, he was unable to profit, in an average measure, from the in- struction given in the ordinary schools (Binet and Simon, 1905, p. 281). The development and revision of the Binet Scales of general intelligence provided a pragmatic tool for clinicians and educators faced with the problems of mental classification, social planning and pedagogy. It is perhaps ironical that despite the original purpose of the Binet scale, which was the classification of abili- ties, that its adoption and use would be extended to cover etiology and eugenics. The question of purpose and limitation of the original scale is clearly stated by Binet and Simon in the following manner: Our purpose is to be able to measure the in- tellectual capacity of a child who is brought to us in order to know whether he is normal or retarded. We should, therefore, study his condition at the time and that only. We have nothing to do either with his past history or with his future; consequently we shall neglect his etiology, and we shall make no attempt to distinguish between acquired and congenital idiocy; for a stronger reason we shall set aside all consideration of pathological anatomy which might explain his intellectual deficiency. So much for his past. As to that which con- cerns his future, we shall exercise the same abstinence; we do not attempt to establish or prepare a prognosis and we leave unanswered the question of whether his retardation is curable, or even improvable (Binet and Simon, 1905, p. 283). In the United States, H. H. Goddard's translation and use of the 1905 and 1907 Binet Scales at the Vine- 1and Training School for the Feeble-minded set the tenor for incorporating psychometry in the special education pedagogy of the early twentieth century. Goddard's zealous advocacy of Binet's approach to the measurement of intelligence, coupled with his subsequent publication of The Kallikak Family in 1912, set the stage for a hereditarian thesis. Based upon the genealogical history of the Kallikak family, Goddard attempted to link and interpret the high incidence of feeble-mindedness, in- digence and deviance found in the Kallikaks to genetics. Canceling the initial acceptance of Goddard's thesis, later research findings indicated that: (1) Goddard's research model was biased-~e.g. selection factor, (2) environmental factors contributed greatly to the develOp- .ment of intelligence--e.g. Iowa Studies, and moreover (3) that genetic transmission of mental abilities has a (Inestionable influence on the development of intelligence. In a decade of psychology whose big event was the tISe of intelligence tests for military screening purposes Cluring World War I (Boring, 1950), Goddard's role as a "fisocial reformer" is perhaps best summarized in the ft>llowing statement taken from Tuddenham's historical interpretation of Goddard's views as gleaned from Goddard's kNDqu Human Efficiency and Levels of Intelligence: Stated in its boldest form, our thesis is that the chief determiner of human conduct is a uni- tary mental process which we call intelligence: that this process is conditioned by a nervous mechanism which is inborn: that the degree of efficiency to be attained by that nervous mechanism and the consequent grade of intelli- gence or mental level for each individual is determined by the kind of chromosomes that come together with the union of the germ cells: that it is but little affected by any later influ- ences except such serious accidents as may des- troy part of the mechanism (Goddard, 1920, p. 1). From this base Goddard then "proposes a sweeping program of social reform": It is no useless speculation that tries to see what would happen if society were organized so as to recognize and make use of the doctrine of mental levels . . . it is quite possible to re- state practically all of our social problems in terms of mental level. . . . The great advantage of having every man doing work on his own mental level would prove fundamental. Testing intelli- gence is no longer an experiment or of doubted value. It is fast becoming an exact science. The facts revealed by the Army tests cannot be ignored. Greater efficiency we are always work- ing for. Can these new facts be used to increase our efficiency? No question! We only await the Human Engineer who will undertake the work (Goddard, 1920, p. l). The appeal of Goddard's reform rhetoric permeated 'theeteacher training institutions, training institutions fkbr the feeble-minded and even the "citadels of experi- Irlental psychology on university campuses." The residual (Di? this genetically based premise (Shuey, 1958; Garrett, 15961; Jensen, 1969) has lingered despite the efforts by SCnne (Spitz, 1945, 1946; Hunt, 1961; Pettigrew, 1964) to reBfute the hereditarian thesis. As a consequence, the GEiltonian conceptual and methodological models can still "w. ‘7‘ u... be observed in education policies today as they apply to the mentally retarded (Dunn, 1968) and to the "culturally disadvantaged" (Baratz and Baratz, 1970). Application of the normative model to the public school population, particularly within the field of spe- cial education, has developed along an ever-growing con- tinuum. Located on this continuum is the subset of in- tellectual deviance whose upper and lower limits are set by psychometric classifications. Estimates of the preva— lence of children enrolled in local public schools in need of special education indicate that the upper range or gifted children represent 2.0% of the population, while the mentally retarded represent 2.3% of the population group (Mackie, 1969). Within the latter category, ap- proximately 50% of this subset population represents what is further classified as the upper range of educable mentally retarded (I.Q.s of 50 to 75) (Mackie, 1969). It has been estimated by some (Dunn, 1969; Hurley, 1969) 'that within this group, 60 to 80 percent of those children ilabeled mentally retarded are "children from low status kmackground--inc1uding Afro-Americans, American Indians, “Maxicans, and Puerto Ricans . . and children from non- ITliddle class environments." The determinants of educa- 1Dility, in addition, are confounded by the increasing 1‘number of "disadvantaged students" attending the urban ENlblic schools (Schwebel, 1968). It has been predicted that by 1970, one out of every three students attending the large city schools will be "culturally deprived" (Reisman, 1962). Given this phenomenon plus an increase of over 400% over the past 20 year span in the number of special education classes currently available for the educable mentally retarded, it would appear that the classificatory intersection between the upper range of educable mentally retarded and the urban disadvantaged school population represents either a shifting conceptual definition of mental retardation or a general decline in the intellectual ability of the general population. Evi- dence discrediting the latter premise (Montagu, 1945; Tuddenham, 1948) forces one to focus on the conceptual definition of mental retardation (Shulman, 1968). Current Theoretical Dispute The need for a re-examination of the concept of Inental retardation presents a serious challenge to the tOtal community, particularly in light of recent court decisions regarding ability grouping practices (Hobson "- Hansen, 1967) and cultural biases contained in psycho- ITletric instruments (Diana v. State Board of Education, 19'70). The educational implications of these court deci- Sions, plus the tenor of other cases pending (Schwan v. Ioansing School Board, 1970; The Detroit Board of Educa- thDn v. The State of Michigan, 1968) have provided the impetus for re-examining the public school's role in providing equal educational opportunities for all stu- dents. Investigations relative to the impact of racial isolation and equality of educational opportunity, des- pite the raising of serious questions concerning the future of urban educational policies (Pettigrew, 1967; Coleman, 1966) have failed to deal with the issue of mental retardation as it relates to equality and acces- sibility to education in urban areas. Scant attention has been paid to the psycho-social determinants of edu- cability, particularly to interactions between these determinants and the past and current educational poli- cies utilized by school systems in the classifying and placing of "special children" in "special programs." Questions have been raised about the association between pathologies and social class (Hollingshead and Redlich, 1958; Leighton, §£;§l,, 1963; Dohrenwend and Dohrenwend, 1969). There is belief, however, that the distribution of Special education, too, has followed E“Dcio-economic, ethnic, and racial lines (Dunn, 1968; Pkercer, 1965). Social class and the functions of special EEducation have followed a normative model which has sub- Semquently led to a differential distribution of the InGantally retarded among the poor and culturally different. To some (Dexter, 1958; Dunn, 1963; Mercer, 1965) SENacial class placement for the educable mentally re- titrded, particularly in urban areas, has been interpreted as being imposed on the culturally disadvantaged and cul- turally different student. Broadly interpreted, the theoretical positions of Hollingshead, Redlich, Becker and Dexter imply that deviant behavior such as mental retardation is a label created and defined by the rest of society. Moreover, the labeling process of deviancy has been viewed by some as ". . . not a quality of the act the person commits, but rather the consequence of the application by others of rules and sanctions to an offender" (Becker, 1964, P- 3)." The purpose of this study is to examine the dis- tribution of the educable mentally retarded as a func- tion of race, sex, and socio-economic status in an urban public school system. Specifically, this study will focus on the empirical manifestations and conceptual definition of educable mental retardation as employed .by the Special Education Division in the Detroit Public fSchool System since the inception of special education iJi the Detroit Public School System. Hypothesis In consonance with the theoretical implication and research findings (Hollingshead and Redlich, 1958; Dexter, 1958, 1960) the basic hypotheses which will be examined in this study are that: 10 1. The concept of educable mental retardation based on measured I.Q., as used by the Detroit Public School System for special class placement, will vary over time as a function of race, sex, and socio-economic class. 2. The exit pattern (return to regular grades) of students classified as educable mentally retarded will vary as a function of race, sex, and socio-economic class. 3. The delay in placement of certified educable mentally retarded students will vary as a function of race, sex, and socio-economic class. 4. The initial age and grade of students at the time of psychological examination will vary as a function of race, sex, and socio- economic class. 5. Changes in measured intelligence of educable mentally retarded students will vary as a function of the length of time spent in special classes. 6. Within special classes for students classi- fied as educable mentally retarded, Blacks and Caucasians will differ as a function of the students' (a) place of birth; (b) number of schools attended; (c) mobility; (d) semes- ters repeated in regular grades prior to special class placement; (e) number of sib- lings in the family. Theory Mental retardation, in general, refers to a global (havelopmental deficit which is manifested in behavioral Euui intellectual maladaptation. Benton (1964) in dis- ‘mlssing the theoretical considerations of the concept of mealItal retardation points out the complex relationships exiSting between exogenous and endogenous (Strauss and ‘werner, 1941) determinants when psychological evaluations 11 are used for classificatory purposes. Fundamental to any psychological evaluation is its theoretical basis and classification. Since most conceptual frameworks usually allow for some degree of flexibility in interpretations, it has been posited that classifications of mental re- tardation are of a tentative nature and are "arbitrary .Language systems which vary according to their intended ENJIPOSG" (Heber, 1959). The concept of mental retarda- tixon (Heber, 1959) has, over time, demonstrated a broad fJJexibility (Farber, 1968). Currently, mental retardation is defined by the .Anuerican Association on Mental Deficiency in the follow- ing sentence: Mental retardation refers to sub-average gen- eral intellectual functioning which originates during the development period and is associated ‘with impairment in adaptive behavior (Heber, 1959, p. 3). A further examination of the definitional source (Heber, 1959) discloses that: . . . an individual may meet the criteria of mental retardation at one time and not at another. A person may change status as a re- sult of changes in social standards or condi- tions or as a result of changes in efficiency of intellectual functioning, with level of efficiency always being determined in relation to the behavioral standards and norms for the individual's chronological age group (Heber, 1959, p. 4). Thus mental retardation represents a descriptive andrelative concept based on intellectual functions and behavioral expectancies, which are interpreted as 12 maladaptive to a particular culture or social milieu (Edgerton, 1968). DeSpite the divergent theoretical in- terpretations of mental retardation which have ranged between a quasi biological model (Goddard, 1921; Jensen, 1969) and one of social pathology (Doll, 1941), these two positions are not as extreme as they may appear. The itheraction and inseparability of genetic and environ- nuzntal factors has been examined and appears to be a nmxre promising theoretical position (Heber, 1964; Kirk, l£158; Newman, Freeman and Holzinger, 1937; Skodak and Skeels, 1949) . Common to both models, moreover, are the ‘tkueoretical constructs of maladjustment and developmental deficit which are ‘used to infer retarded intellectual and social development. Although a great deal of re- search has been conducted within the field of mental re- tardation, the thrust has originated primarily from a Irleidically based model. Consequently, scant attention has been paid to the adoption and use of a psycho-social approach. In order to formulate a rigorous theoretical Position, it is necessary to draw from research conducted inthe area of mental illness which, broadly speaking, j-$the theoretical counterpart of mental retardation Within its respective field. Both constructs can also beViewed as deviant or maladaptive within the intellec- tua1 and social spheres of normal expectancy. In addi- tion, the incidence of mental illness has been l3 interpreted as a function of race, sex and social class (Hyde and Chisholm, 1944). Epidemiological investigations of the incidence of psychiatric disorders within different social classes, similar to mental retardation research, have utilized either a medical or social pathology model. A number of these large-sample size studies have found a positive association between social class and incidence of psy- chiatric disorders (Paris and Dunham, 1939; Clark, 1949; Hollingshead and Redlich, 1958; Pasamanick §E_al., 1959; Clausen ahd Kohn, 1960; Srole gt_al., 1962; Leighton et_al., 1963). Although these investigations vary metho- dologically, their findings all tend to confirm the presence of a differential distribution of psychiatric disorders within a defined scheme of social stratifica- tion. Hollingshead and Redlich (1958) and the Meyers and Roberts (1959) investigations appear to be the most relevant studies for providing quantitative and quali- tative explanations of the differential distribution of psychiatric disorders as a function of social class. The investigators formulated five hypotheses which repre- sented a synthesis of the ecological, sociological, and psychiatric determinants of mental illness within an urban setting. Specifically the hypotheses under exami- nation were: l4 1. The prevalence of treated mental illness is related significantly to an individual's posi- tion in the class structure. 2. The types of diagnosed psychiatric disorders are connected significantly to the class structure. 3. The kind of psychiatric treatment administered by psychiatrists is associated with the patient's position in the class structure. 4. Social and psychodynamic factors in the de— velopment of psychiatric disorders are correla- tive to an individual's position in the class structure. 5. Mobility in the class structure is associated with the development of psychiatric diffi- culties. Several of the assumptions couched within the Hollingshead and Redlich hypotheses can be related spe— cifically to the concept of mental retardation. First, mental illness and mental retardation are socially de- fined conditions which represent a trichotombus (socio- logical, psychological and medical) based diagnosis. Second, the social, psychological and educational diag- nostician can be viewed as an agent whose social and pro- fessional ideology often distracts and deters from mean- ingfully defining problems (Davis, 1938; Allport, 1942; Mills, 1943; Haase, 1954). Third, given that "our society is characterized by a system of stratification," we can expect a disproportionate distribution of maladaptive behavior across social class and cultures which perhaps represents more diagnostic bias than incidence of deviant 15 or maladaptive behavior (Davis, 1938; Allport, 1942; Auld, 1952; Rose, 1949; Haase, 1964; Dexter, 1958). Drawing from the theoretical position advanced in the field of psychiatric illness, the concept of educable mental retardation can be treated as a socially defined, adjudicative educational process which can be correlated with socio-economic class, race, sex, mobility and cul— tural acclimation. Definition of Terms The following terms are defined as they will be used in the study: 1. Educable mentally retarded--refers to any stu- dent whose school medical records do not indi- cate observable organic brain damage following a medical examination by the clinic physician, and who has been administered a psychological evaluation and subsequently placed in a spe- cial class for the educable mentally retarded. 2. Exit pattern--student's return to a regular grade class which the public school officials feel is commensurate with his current level of academic functioning. 3. Delay in p1acement--refers to the legnth of time lapse between the psychologist's recom- mendation of special class placement and the actual time of placement in a special educa- tion class for the educable mentally retarded. 4. Measured intelligence-~refers to the resultant intelligence quotient attained from an indi- vidual psychological evaluation administered by a school psychologist. 5. Mobility--the number of recorded residential moves a student has made from birth to the time of psychological evaluation. 16 Number of schools attended--refers to the num- ber of schools attended in Detroit and else- where that have been recorded on the student's permanent school record. Semesters repeated in the regular grades-- refers to the total number of listed grade failures by semester for an individual's school history. Socio-economic status--refers to the equal weighting of parents' occupation and educa- tional level (see Appendix A). CHAPTER II REVIEW OF LITERATURE The effects of race, sex and socio-economic class on the incidence of mental retardation found in the urban school population are well established. However, the labeling process used by school systems has received scant attention, particularly as this process relates to the defining of deviant behavior. Kitsuse (1964), in delineating the process of deviancy, states . . . deviancy may be conceived as a process by which the members of a group, community, or society (1) interpret behavior as deviant, (2) define persons who so behave as a certain kind of deviant, and (3) accord them the treatment considered apprOpriate to such deviants (Kitsuse, 1964, p. 88). The applicability of Kitsuse's conceptual framework to the label of mental retardation appears most appro- priately suited for the present study. However, a paucity of relevant studies in mental retardation exists and therefore the research to be reviewed will consist of only studies germane to Kitsuse's theoretical position. In consonance with the theoretical parallels outlined in Chapter I, the review of the literature will focus only on appropriate psychiatric and educational research which 17 18 lends itself to conceptualizing the problem of social class and mental retardation. Review of Relevant Psychiatric Epidemiological Research A number of large scale epidemiological studies have been conducted which have attempted to relate the distribution of psychiatric illness to population char- acteristics--e.g. age, sex, ethnicity, and class. More- over, it can be safely assumed that new insights into mental illness have emanated from the findings of medical epidemiologists and social scientists who have investi- gated the ecological and demographical corollaries of mental illness. Interlaced with epidemiology is the role of etiology which, in a logical sense, determines epi- demiology. Perusal of the literature in psychiatric epidemology discloses that most of the large-scale epidemiological studies conducted have been based on two methodological approaches, namely extensive interviews and/or the re- viewing of hospital records. One investigation frequently cited by psychiatric epidemiologists as a classic example of a research effort designed to examine the relationship between sociological and psychiatric variables was conducted by Paris and Dunham (1939). Utilizing the theoretical conceptualiza- tions of Park and Burgess (1925), the investigators 19 examined the incidence and distribution of admissions to mental hospitals from Chicago of two main functional psy- choses (i.e. schizophrenics and manic depressives) and attempted to correlate and interpret Specific demographic indices with the differential distribution for these two diagnosed mental disorders within ecological and social disorganization theory. Data from a sample of 7,253 cases provided strong evidence for the investigators to conclude the following: (1) A comparison of the distribution of the (2) (3) (4) rates of the schizophrenic and manic- depressive psychoses shows them to be un- like each other in almost every respect. The schizophrenic rates show the typical ecological pattern and are concentrated in the disorganized areas of the city, while the manic depressive rates do not show a typical pattern nor any definite concentra- tion in the disorganized and poverty- stricken areas of the city. There is a tendency, although not clearly defined, for the manic depressive cases to come from a higher cultural and eco- nomic level as compared with the schizo- phrenic cases. The schiZOphrenic rates showed a skewed fre- quency distribution, while the manic de- pressive rates showed no such skewness in their distribution (Dunham, 1939, p. 101). Furthermore, the investigators, in teasing out and examining the distributive relationship of race, sex and national origin to the incidence of these functional psychoses, noted that the distribution of these variables 20 followed a pattern similar to that noted for the two broad psychiatric classifications. Dunham (1964), in a further attempt to investigate the relationship of social class to one particular mental disorder (schizophrenia) examined first-admission patients from two Detroit sub-communities covering a two year period but separated by a twenty year span (1936-1938 and 1956-1958). Using a method developed by Hollingshead and Redlich (1958), Dunham defined social class by "combining the respective weights for occupation and education of the heads of the households." Dunham's adaptation of the Hollingshead and Redlich weight basically was derived from the following multiple regression equation: X1 (Estimated class position) = .183X2 (Residence) + .154X3 (Education) + .269X4 (Occupation) + .884 (Hollingshead and Redlich, 1958, p. 394). By omitting the constant (.884), the approximate weights of 6, 5, and 9, respectively, were used to weight the factors X2, X3, and X4 by Hollingshead and Redlich (1958). The total sample consisted of three diagnostic groups: (1) schizophrenics, (2) non-schizophrenics and (3) all additional psychiatric cases. Although analyses of the data indicated a higher proportion of schizophrenics in the lower social class groups, when the two sub- communities were compared individually and in total across social class groupings excluding the lowest social class group, the incidence rates approached parity. The 21 investigators consequently theorized that the incidence of schizOQhrenia is not inversely related to the class structure but rather is the result of social selection factors e.g. birth, achievement, personality, education. Hollingshead and Redlich (1958), in attempting to examine the relationship between social class and the treated prevalence of mental illness interviewed a 5 percent sample of all households in the metropolitan area of New Haven, Connecticut. A systematic random sample of 3,559 interviews served as basic data for examining the relationship between social class position and (1) preva- lence of treated mental illness, (2) types of diagnosed psychiatric disorder and (3) the type of psychiatric treatment administered. By assigning approximately equal weights to the respondent's area of residence, occupation and education, an "Index of Social Position" was derived. Weights were determined by the use of multiple regression analysis. Utilizing this process, the investigators divided the population into five social classes arranged in a hier- archial order. Social class was treated as an independent variable; the psychiatric diagnosis and treatment of a patient's illness served as the dependent variable. The major finding of the Hollingshead and Redlich study was the presence of a systematic relationship be- tween social class and the treated prevalence of mental 22 illness. A closer examination of this relationship sug- gests that the lower class (unskilled and semi-skilled workers of low education) had higher prevalence rates in the diagnostic categories of phobic-anxiety reactions, schizophrenia, and organic psychoses. While schizo- phrenia was the predominant psychotic disorder in all classes, the proportion of schiZOphrenics found in the two lower social classes was less than that reported in earlier studies (Clark, 1949; Paris and Dunham, 1939). Statistically significant findings were reported by the investigators for the three hypotheses under test. In concluding, Hollingshead and Redlich emphasized the changing role and redefinition of psychiatry, particularly as it related to the lower social class. Another large-sample size type study conducted by Parker and Kleiner (1965) attempted to investigate the effects of race and social class on the incidence of psychiatric illness as a function of goal-striving be- havior. Basically, this research effort represented a replicative extension of an earlier study by Malzberg and Lee (1956) on migration and mental disorders among Negroes. The Malzberg and Lee hypothesis that: Negro migrants represented a disproportionate number of first admissions to private and public mental hospitals in New York, provided the impetus for the Parker and Kleiner study. 23 Two groups, both systematically drawn from the Philadelphia Negro community, served as representative samples of the non—mentally ill and mentally ill popula- tions. Both groups were interviewed in depth (206 items-- of which 15% were open ended). In addition, each re- spondent between twenty-five and twenty-nine years of age was asked to respond to a projective test (Need Achievement Test) which functioned as a measure of his "achievement motive" (Atkinson, 1958). Social class was operationally defined by the in- vestigators on the basis of differential weights assigned to education, income and occupation. These criteria and weights were derived from the respondents ranking of eight "potentially relevant criteria for status position." Essentially, the findings of the Parker and Kleiner investigation indicated that the total combined variables considered simultaneously only accounted for 41% (i.e. multiple correlation coefficient of .64) of the variance associated with mental disorder, despite the presence of a positive relationship between race, social mobility and social class in both the ill and community samples. Spe- cifically, the investigative yield disclosed a consistent trend of high psychiatric symptoms associated with up- wardly and downwardly mobile groups. The groups' mani- festations of high stress, low self-esteem and discrepant reference group orientation was interpreted as antecedent 24 conditions to mental illness. The highest rate of ill- ness was noted in the native Philadelphia Negro and thereby supported the investigators' initial "hunch," which was based upon their questioning of an earlier study by Malzberg and Lee (1956). One of the most comprehensive large scale psychia- tric epidemiological investigations performed to date has been the Midtown Manhattan Study (Srole, Langner, Michael, Opler and Rennie, 1962). Drawing from a population of 110,000 peOple ranging in age between 20 and 59, the in- vestigators obtained extensive interview data from a random sample of 1,660 persons (1.5% of the population) residing within the Midtown New York City district. The project consisted essentially of three phases: "The Sociography Operation, describing the community; The Treatment Census, a collation of all records of psychia- tric treatment of Midtowners; and the central operation, The Home Interview Survey" (Langner and Michael, 1963, p. 47). Sociographic data taken from available federal, state and municipal sources--e.g. U. S. Census, was used to describe the community and its peOple. In addition, key informants in the community, participant observers and relevant commentaries on life in Manhattan were used as descriptors. 25 Psychiatric facilities were surveyed in order to determine the prevalence and incidence rates for both hospitalized and ambulatory psychiatric patients who were Midtown residents within the previous five year span. The Home Interview Survey consisted of administer— ing a 65 page questionnaire to 1,660 individuals. Ques- tionnaire items represented two theoretical models: (1) stress--i.e. "noxious or potentially noxious factors," and (2) strain--i.e. "reaction to the stress." Of the 415 items, each item theoretically represented a hypo— thesis. Approximately half of the questionnaire items were environmentally based items which were designed to relate psychiatric impairment to specific demographic stress factors. In addition to the Home Interview Survey, each of 1,660 questionnaires was rated independently by two psy- chiatrists. The rating procedure, however, was con- trolled so that "symptomatic" information could be evaluated independently from "social functioning" infor- mation. This procedure reduced rating difference (symptom vs. socio-cultural background) to 25%. The investigative yield of the Midtown Manhattan Study disclosed the presence of many positive relation- ships between demographic factors and the incidence and degree of psychiatric impairment. For the sake of brevity, however, perhaps the most significant finding was: 26 "socio-economic status is more closely associated with mental disturbance than any other demographic factor" (Langner and Michael, 1963, p. 75). Contrary to the New Haven Study (Hollingshead and Ridlich, 1958), the Midtown Manhattan Study found the highest rate of treated cases in the highest social class. This finding was interpreted, however, as an index of availability of psychiatric service as well as a favorable orientation toward psychiatric treatment. In marked contrast to the Midtown Manhattan Study (Srole, Langner, et_al., 1962) is the Stirling County Study (Leighton, gt_al,, 1963), another large sample size psychiatric epidemiological investigation which attempted to examine the relationships between socio- cultural environment and psychiatric disorder within a rural setting. Moreover, the investigators chose to conduct a prevalence rather than an incidence study-— i.e. people with a psychiatric disorder as of a given time. The setting for the Stirling County Study was a rural county located in the northeastern section of Canada. Demographically, the county could be described as a small (population of 20,000) bay community composed primarily of French Acadians and English speaking peOple whose primary source of livelihood is fishing and secondary industries related to fishing. 27 Methodologically, this study also differed from previous investigations in that 10 indices were used to rate the sample communities on a sociocultural integration- disintegration scale. Essentially, the investigators sought to examine the relationship between sociocultural disintegration and its effect on personality. A 10% probability sample (1,015) of heads of households over 18 years of age, approximately equally divided between males and females were interviewed. All respondents had resided in the area for at least six months prior to the inter- view. Additional information was obtained from observa- tions by the interviewer, independent judging protocols by two psychiatrists, impressions from at least one com- munity source--i.e. long term residents (20 years or more) and hospital and other institutional records. Succinctly, the Stirling County Study provided evi— dence to support hypotheses framed within a quasi psychiatric-social disorganization theory in which psy- chiatric disorder is a function of sex, age and socio- cultural disintegration. Contrary to previous studies (Srole, gt_al., 1962; Hollingshead and Redlich, 1958; Paris and Dunham, 1939), the investigators found that the prevalence rate of psy- chiatric disorders within the disintegrated community represented a significant proportion (59%) of psychiatric disorders. This higher prevalence of psychiatric 28 disorders has, however, raised considerable questions and criticism in terms of criterion and concurrent validity (Dohrenwend and Dohrenwend, 1969), particularly since the cross validation attempt (Leighton, et_al., 1966) was further confounded by a selection factor. Few epidemiological studies have focused spe- cifically on ethnic differences, particularly in terms of demographic characteristics as corollaries of the inci- dence and prevalence of psychiatric disorders. The omis- sion or limited number of various ethnic groups has been viewed by some as a serious sampling problem. One rather intensive review of the literature (Dohrenwend and Dohrenwend, 1969) noted that of 44 community studies con- ducted between 1917 and 1963, only 8 provided comparative data for Negroes and whites. Moreover, the results from these 8 studies were evenly divided--i.e. "4 showing higher rates for Negroes and 4 showing higher rates for whites" (Dohrenwend and Dohrenwend, 1969, p. 57). The Washington Heights Studies (Dohrenwend and Dohrenwend, 1965, 1967) represented an attempt to investi- gate the relationship between different ethnic groups, demographic characteristics and rate of psychiatric dis- order within a social causation frame of reference--i.e. psychiatric disorders thought to be the result of en- vironmental stress. 29 Washington Heights, a section of Manhattan in New York City, is composed primarily of (in order of size) Jewish, Negro, Irish, and Puerto Rican residents. The history of assimilation of ethnic groups in New York City probably typifies the assimilation patterns found in most large urban communities, particularly if one ignores specific ethnic group origin and instead focuses on the assimilative patterns of ethnic groups as a function of demographic and historical trends over time. Dohrenwend and Dohrenwend describe the social history of New York City's immigration pattern and socio-economic development in the following manner: As an example, the history of New York City has been marked by great successive waves of new immigrant groups: the Irish and Germans in the 1840's, the Jews and Italians starting in the 1880's, the Negroes after World War I, and the Puerto Ricans after World War II. With the possible exception of non-Jewish Germans, the initial conditions of these new groups in the city have been those of poverty, slums, and working-class jobs. The Jews, the Irish, and to a lesser extent, the Italians have moved up over succeeding generations into relatively affluent and largely middle-class circumstances. In this process of assimilation, the three ethnic groups have achieved a substantial share in the wealth and power of the city. In sharp contrast to these now relatively advantaged ethnic groups are the Negroes and Puerto Ricans, who are concentrated geographi- cally in the city's slums and occupationally in its low-paying unskilled and semi-skilled jobs (Dohrenwend and Dohrenwend, 1969, p. 57). The initial Washington Heights study consisted of a probability sample (1,283 respondents) drawn from a 30 previously conducted survey which contained a probabil- ity sample of 1,713 Washington Heights residents. By selecting only respondents between 21 and 59 years of age, the investigators were able to approximate the sample size and age range of the Midtown Manhattan Study (Srole et_al., 1962). Further replicating the Manhattan Study was the investigators' use of 22 symptom interview items taken from the Midtown Study interview schedule. Interview data were obtained on 90% of the sample. Edu- cation and income were treated as separate but primary indices of social class, because of varying income across ethnic groups. The second Washington Heights Study, conducted approximately two years after the initial investigation, sought to examine the relationship of ethnicity and social class to the rate of personality disorder--i.e. "alcoholism, sociopathic traits, and the early stages of paranoid schizophrenia" (Dohrenwend and Dohrenwend, 1969, p. 66). A small probability sub-sample of subjects was drawn from the first study. However, unlike the initial study, the selection of subjects (heads of household) was based on sex and ethnicity. Control for these two variables was further utilized by assigning interviewers to respondents of the same sex and race. Interview items providing clues of these traits were selected from the Minnesota Multiphasic Personality Inventory. In contrast 31 to the first study, social class was not treated as a composite of education and income. For purposes of clarity, the findings of the two Washington Heights studies will be reviewed as one, since the second study basically represents an extension of the initial study. Essentially, the investigative yield of the two studies did not provide sufficient evi- dence to allow rigorous conclusions to be drawn regard- ing the etiological basis of psychiatric disorders within the four ethnic groups. A major problem which developed out of both studies was the consistently higher rate of symptoms on all measures reported by Puerto Rican re- spondents relative to their class counterparts in the other ethnic groups. Scores on the Psychophysiological Symptom Index (e.g. cold sweats, headaches), the 22 Mid- town items, and Social Desirability Ratings (i.e. rating symptoms as desirable or undesirable) suggest that Puerto Rican and Negro respondents tend to interpret "mal- adaptive" behavior differently than their Jewish and Irish social class counterparts. This amount of differ- ence between the four ethnic groups remained despite the investigators' controlling for educational level. The investigators, as a consequence, concluded: In other words, the differences in results obtained on the various symptom indices may be a function of cultural differences in the types of symptoms used to express distress as well as 32 or instead of cultural differences in willing- ness to admit symptoms when they are present (Dohrenwend and Dohrenwend, 1969, p. 88). Review of Related Research and Literature Empirical research specifically dealing with the process of labeling an individual as educable mentally retarded is at a minimum. In order to explore the im- plications of the labeling process, it becomes neces- sary to examine studies which incidently touch upon the labeling process. In addition, there is a small number of theoretical articles which discuss the educational, social and psychological implications of being labeled mentally retarded. Towne and Joiner (1966), in examining the conse- quences of special class placement on the self-concept-of ability of educable mentally retarded students, noted that the students' reference group appears to be a key variable in terms of the labeling process and its impact on self concept of ability. The investigators theorized that a student's initial high score on the self concept of ability measure suggests a change in reference group which initially provided "a number of Opportunities for aggrandizement of self" (Towne and Joiner, 1966, p. 117). However, as the student became acclimated to his newly expected role and continued to interact with "normal" students, a decline in his self concept of ability was 33 noted. This reverse--i.e. initial increase in self con- cept of ability followed by a decline in self concept-- suggests that placement in Special classes for students classified as educable mentally retarded is primarily a function of reference groups and the student's level of interaction with "regular" and "special class" students. An interesting interpretation of this process based upon an illustration by Goffman (1952) had been previously developed (Towne and Joiner, 1965). Another investigation (Mercer, 1965) sought to examine the differences in family acceptance and career patterns of individuals labeled as mentally retarded. Two groups of institutionalized retardates matched on intelligence quotient, age, sex, ethnic status and year of admission were studied. Essentially, the groups dif- fered only in that one group had been released to their families, while the other group remained as patients in a state hOSpital. The families of both groups were then interviewed. Social class was defined and weighted according to the Hollingshead and Redlich system. Basi- cally, the results of this investigation disclosed that divergent definitions existed regarding the parental labeling of mental retardation. Moreover, this labeling process appeared to be a function of social class and age--i.e. lower status children were labeled retarded generally after school age. For the higher status 34 patients, the labeling process occurred at an early age and was less likely to be questioned by the primary group. An important consequence of the patient's primary group's level of acceptance of retardation as normal or deviant was noted in that the lower status patient's families (primarily Mexican American and Negro) held higher expec- tations for their children (46%) fulfilling the usual adult role than did the higher status group (6.9%). The dynamics of social class labeling and institu- tional placement for the mentally retarded individual, particularly as it related to his life Space, was des- cribed by Mercer in the following manner: Behavior which was perfectly acceptable in his primary social system may now be judged as evi- dence of "mental retardation." At this point he is caught up in the web of official definitions. However, because he has primary social systems which may not agree with these official labels, he may be able to return to that segment of the social structure which does not label him as deviant after he has fulfilled the minimum re- quirements of the official system. That is, he can drop out of school or he can "serve his time" in the state hospital and go home (Mercer, 1965, p. 33). A comparable parallel can be drawn between the mentally retarded patients reported in the Mercer study and the "The Six Hour Retarded Child"--i.e. children who are classified as retarded during the six hour school day on the basis of I.Q. tests, without regard to the child's ability to perform outside the classroom. 35 Results similar to the Mercer study were noted by Shulman (1967, 1968). In an attempt to explore and modify the vocational development of urban educable men- tally retarded adolescents, the investigator conducted an experimental and longitudinally designed study within a sheltered workshop. The sample originally consisted of approximately one-third Negro. However, by the termina- tion of the study, only 33 of the original 55 subjects were available for the follow-up interview. Of this group, 8 were Negro and 25 were white. Subjects were administered an annual five day diagnostic assessment test battery which provided data on vocational, intel- lectual, social and personal behaviors. In addition, a daily rating scale was used to rate work behavior of the subjects during their five day evaluation session. Fundamentally, the results of this study raised serious question concerning the validity of diagnostic evaluation and special class placement policies. Shulman, in summarizing the findings of his study, states: The fact that, though indistinguishable on the basis of typical measures used by the public school, the Negro and white subjects in this study turn out to be so radically different, may suggest that many of the "color blind" practices in our big city public schools are inappropriate. Apparently identical phenotypic mental retarda- tion was seen to mask very different genotypes for Negro disadvantaged and white advantaged youngsters, respectively (Shulman, 1968, p. 240). 36 Enlarging further upon these findings, Shulman discusses the educational implication of these findings in the following manner: Our findings raise serious questions about the effectiveness of present methods for identifying and subsequently re-educating children who are intellectually handicapped in our urban public schools. Moreover, the advisability of tradi- tional modes of "special education" in these areas must be questioned. It seems clear that all education should be special or none of it. The incidence of misclassification in using cur- rent criteria appears unnecessarily high. Our most intelligent decision may well be to do away with all "Special classes" in the inner city until we develop better means of identifying the etiologies of educational handicaps and thus more adequate methods of remediating them (Shulman, 1968, p. 240). Another empirical investigation which appears ap- propriate for review was conducted by Rosenthal and Jacobson (1966). In a rather unique experimental study, the investigators examined the effects of teacher ex- pectancies on the intellectual growth of elementary school children in a San Francisco school. The research hinged upon the results obtained from a newly initiated testing program designed to "predict academic blooming." In reality, however, the test administered was the Flanagan Tests of General Ability. Teachers were given the names of students whose test results suggested that they were "academic spurters"--i.e. "those, who during the academic year ahead, would show unusual intellectual gains." In addition, the investigators requested that the teachers not discuss the test findings with either 37 the students or the students' parents. Following the initiation of the study, students were retested at four month intervals twice. The teachers were also asked to rate all of their students on nine variables ranging from prediction of future success to the need for social approval. Analysis of the data from this study led to the "self-fulfilling prophecy or Rosenthal effect." More specifically, the investigators' interpretation of the results were: The results of the experiment just now des- cribed provide further evidence that one per- son's expectations of another's behavior may serve as a self-fulfilling prOphecy. When teachers expected that certain children would Show greater intellectual development, those children did show greater intellectual develop- ment (Rosenthal and Jacobson, 1966, p. 246). Review of Non-Empirical Literature Perhaps one of the most controversial articles to appear in recent Special Education literature was one written by Dunn (1968). In a scathing and provocative indictment of the current practices of special education, Dunn states: In lieu of an abstract to this article, I would like to preface it by saying this is my swan song for now--as I leave special education and this country for probably the next two years. I have been honored to be a past president of the Council for Exceptional Children. I have loyally supported and promoted special classes for the educable mentally retarded for most of the last 20 years, but with growing disaffection. In my or. I. .1. (I) '1‘ 38 view, much of our past and present practices are morally and educationally wrong. We have been living at the mercy of general educators who have referred their problem children to us. And we have been generally ill prepared and ineffec- tive in educating these children. Let us stop being pressured into continuing and expanding a special education program that we know to be un- desirable for many of the children we are dedi- cated to serve (Dunn, 1968, p. 5). To develop this position, Dunn then proceeded to examine and discuss the mislabeling and placement prac- tices used by school systems to classify children from non-middle class environments--i.e. Afro-Americans, American Indians, Mexican and Puerto Rican Americans, as mentally retarded. He posited that 60 to 80 percent of these students have been mislabeled and relegated to a second class educational status. Citing supportive evidence, Dunn referred to the (l) Skelly Wright decision regarding the abolishment of educational tracking in the District of Columbia, (2) Coleman Report and the educa- tional implications for racially integrated schools, (3) inconclusive status of efficacy studies on the men- tally retarded, (4) questionable validity of psychometric assessment and (5) the "Rosenthal Effect" and its appli- cability to labeling a child "handicapped." As an alternative to current Special education pro- grams for the midly retarded (50 to 75 I.Q.) student, Dunn proposed establishing a moratorium on the increasing number of self contained Special classes. In lieu of Special classes, he proposed establishing "Special 39 Education Diagnostic and Prescription Generating Centers"-- i.e. a cadre of educational specialists, in cases war- ranted by a large school population. A second alternative recommendation was the use of a diagnostic generalist, if establishing a center was not feasible. Third, if neither of the aforementioned alternatives were possible, a quasi prescriptive clinical teacher could provide the necessary service. Augmenting the three alternatives outlined, Dunn further recommended that psychometric and diagnostic pro- cedures become better standardized, particularly as they relate to individual cognitive modes and the correspond- ing instructional techniques. Emanating from this pro- cedure, Dunn envisioned a-chain of Special Education Cur- riculum Development Centers jointly sponsored and shared between colleges and universities and state and local school systems, e.g. Michigan State University Instruc- tional Materials Center. Theorizing that special education programs have been inadequate primarily because current educational treatment has not been based on a conceptual model, the writer then discussed the developing of an educational taxonomy. A skeletal taxonomy was outlined by Dunn con- sisting essentially of brief reviews of educational re- search in eight basic input areas. 40 Although the Dunn article is probably one of the most frequently cited articles today, perusal of the literature does indicate that Dunn's position is not unique. Though differing in interpretation, several writers (Dexter, 1956, 1958, 1960; Szasa, 1960, 1970; Towne and Joiner, 1965) have explored the dimensions of mental retardation and mental illness from a non- empirical but theoretically based point of view. Among the commonalities found in these articles has been the focusing of discussions on the relative nature of socially defined behaviors within a given milieu, par- ticularly in terms of the amount of discrepant behavior, be it social or intellectual as perceived by the labeler and the labeled. Dexter (1956, 1958, 1960), in a series of articles on mental retardation, attempted to delineate the need for developing a social theory of mental retardation based upon the premise that mental retardation is a consequence of "socially prescribed or acquired roles and statutes" (Dexter, 1958, p. 921). His writings ex- plored the use of systematic observation and recording as a means of better understanding the behavior of the retarded. In formulating a social theory of mental re- tardation, the writer outlined and related five proposi- tions which incorporated the following constructs: social problems, learning, and self concept. By 41 examining the interaction of these constructs, Dexter posited that a new definition of mental retardation would be established. This redefinition, the writer contended, would be the result of field studies on role development of the retarded. Towne and Joiner's (1965) interpretation of Goff— man's construct "cooling the mark out" illustrates the procedure used by the labelers to condition the labeled, is an example of redefining new roles and expectancies for the student designated as educable mentally retarded. Summary Drawing from the empirical research and theoretical discussions cited in the previous sections of this chapter, the conceptual definition of educable mental retardation and functional mental illness can be viewed as a socially defined phenomenon which has been sanctioned and vali- dated with psychiatric and psychometric measures of ques- tionable validity. Moreover, although the investigations and discussions reviewed acknowledged the important role of cultural and ethnic differences, the evidence to date appears scant and limited in terms of its generaliz- ability and applicability to the increasing number of disadvantaged and culturally different groups found in urban areas. In recent years, investigation attempting to fur- ther define the determinants of educability for the 42 culturally different have provided the impetus for re- examining frequently accepted educational policies such as tracking and psychometric evaluation. One promising method of examining the effect and impact of special class placement for the educable mentally retarded is to examine the application of this concept to a changing urban population over time. CHAPTER III METHOD The presentation of research method in this chapter is divided into four sections. In the first section, a description is given of the sample used in this study. Secondly, each major variable investigated is operation- ally defined. Third, a brief description of the psycho— metric instruments used for diagnostic purposes is pre- sented. Fourth, the procedures used for data collection and analysis are outlined. The Sample The population from which the sample was drawn con- sisted of all students referred and evaluated by the Detroit Public Schools Psychological Clinic between the years of 1911 and 1970. Based on the Psychological Clinic's filing system, approximately 190,000 student records are on file. Each individually assigned file or case number represents a specific case of a student who was referred by a school official for some form of edu- cational evaluation due to maladaptive or potentially maladaptive behavior--i.e. poor academic progress, poor social adjustment. 43 44 In most cases involving students referred for an evaluation based on learning problems, an individual in- telligence test is administered and case history data are recorded by the school psychologist. On the basis of the test results and case history data, an educational recom- mendation is made by the psychologist (e.g. student to continue in the regular grade, placement in a class for the educable mentally retarded, exclude from regular school attendance). In addition to the psychological evaluation, every student is given a cursory medical examination by one of the clinic physicians. If, in the physician's judgment, additional diagnostic measures appear necessary, a recom- mendation is made specifying what appears to be in need of further study. The physician's report and recommenda- tions are also included in the student's records. Individual student records selected for this study were based on the following criteria: 1. Students who, after having been administered an individual intelligence test, were recom- mended for special class placement for edu- cable mentally retarded students. 2. Students whose medical records did not indi- cate the presence of organic brain damage. 3. All students were enrolled in the Detroit Public Schools. 4. Students who were evaluated by a member of the Psychological Clinic staff between the period of September, 1911 to January, 1970. 45 The total N was 858: 585 males and 273 females; 326 Blacks and 532 Caucasians. Major Variables The major variables in this investigation were: (1) the concept of educable mental retardation, (2) race, (3) sex, and (4) socio-economic status. Operationally, these variables were defined in the following manner: 1. Educable mental retardation--Certification and placement of a student in special education class for the educable mentally retarded. Certification, as used in this definition, refers to the assessment process, whereby a student is administered an individual intelli- gence test (e.g. Stanford Binet, Wechsler In- telligence Scale for Children, Detroit Test of Learning Aptitude) and on the basis of I.Q. and "other factors" is recommended for special class placement. The general range of intel- lectual retardation considered to be educable has been an I.Q. between 50 and 75. Race--Race was defined as the pyschologist's judgment of the race of the student. Racial identification was generally recorded by the examining phychologist on the test protocol and case history form. Sex--Sex, like race, was defined on the basis of the examining psychologist's recording on the test protocol and case history form. Socio-Economic Status—~Socio-economic status was determined by using a weighted scale where the student's father (or whoever supports the family) was assigned a value on the basis of his education and occupation. The value represented a composite score which consisted of the equal weighting of occupation and edu- cation (Reiss, 1961) (see Appendix A). 46 Data Collection Procedure In January of 1970, the data collection process was started. A sample size of 858 (approximately 1/2 of 1%) was systematically drawn from the population. The point of entry into the file records was determined by using a table of random numbers. The point of entry served as the base number. Proceeding from the established base number, every two hundredth case was examined. If the case examined met the sample criteria, the pertinent data were recorded. In instances where the case did not meet the sample criteria, the procedure employed was to examine each consecutive case until an eligible case was located, recording the data, and subsequently returning to the base number before proceeding to the next two hundredth case. Assisting in the data collection process were two psychologists from the Detroit Public Schools Psychologi- cal Clinic staff. Instrumentation Primarily three individual intelligence tests were Ilsed to evaluate students in order to determine their (aligibility for special education classes for the edu- Cnable mentally retarded during the time Span examined. Tame instruments were (1) Stanford Binet Intelligence Scnale, (2) Detroit Test of Learning Aptitude and (3) the 47 Wechsler Intelligence Scale for Children. A brief des- cription of each instrument is given below. 1. Stanford Binet--An intelligence scale designed to cover the levels of mental development from ages 2 to 18. Levels are graduated in diffi- culty. Below the six year mental age level most test items are of the performance (non verbal) type, e.g. matching, reproducing figures. From ages 6 to 18, test items become more verbal and abstractly based, requiring skills in verbal reasoning power, word defini- tions and deductive-inductive reasoning. Standardization of the Binet has been extensive.* 2. Detroit Tests of Learning Aptitude--A local intelligence test developed but not adequately standardized (Buros, 1939, p. 1045) for use in the Detroit Public Schools for screening stu- dents suspected of mental retardation. The examiner selects and administers 9 subtests from a battery of 19 subtests. The median test score functions as the mental age. Con- version tables are then used to determine the I.Q. A graph is then plotted on the test protocol which indicates the difference be- tween the subject's chronological age and median subtest score. Normative data, though available for the various subtests, is accepted on face value, since no statistical interpre- tation is provided in the test manual. 3. Wechsler Intelligence Scale for Children--A strong competitor with the Stanford Binet Scale, The WISC, like the Stanford Binet, is based on the theory that psychometric evalua- tion should provide a measure of general mental ability. Generally, the instrument is used to evaluate students between 8 and 15 years of age, although the tests' lower limits extend below this range. Items are not grouped by difficulty level. The WISC'S eleven subtests are classified as either Verbal or Performance scale tests. Scores are provided for each major classification area in addition to a *Intercorrelation between the Stanford Binet and ‘Vechsler Intelligence Scale for Children = .82. 48 total or Full Scale I.Q. score. Similar to the Binet, the WISC has been subjected to ex- tensive research. Standardization procedures have also been extensive. Data Analysis Procedures Data were coded and punched on IBM cards and pro- cessed through the CDC 3600 computer at the Michigan State University Computer Center. Since the sample in- cluded both discrete and continuous variables the analy- tic techniques used were (1) analysis of variance, (2) Chi-Square, and (3) the Pearson product-moment correla- tion. All tests of significance were carried out at the .05 levels. Summary A systematic randomly drawn sample of 858 test protocols and case histories were drawn from the file records of the Detroit Public Schools Psychological Clinic. All subjects had been administered an individual psychological evaluation and subsequently placed in a class for the educable mentally retarded in the Detroit Public School System during the time span of September, 1911 to January, 1970. Cases where organic brain damage was recorded were excluded from the sample. The major variables used in testing the hypotheses were: (1) the concept of educable mental retardation, (2) race, (3) sex, and (4) socio-economic status. 49 The data were coded and punched on IBM cards. Sub- sequent analyses were performed using the CDC 3600 computer at the M.S.U. Computer Center. The specific analytic techniques used were: (1) analysis of variance, (2) Chi- square and (3) the Pearson product-moment correlation. CHAPTER IV ANALYSIS OF THE DATA AND RESULTS This chapter contains the results of the statistical analysis of the data. Each hypothesis is restated and accompanied by the results of the analysis. A summary of the findings will be found at the end of the chapter. Of the original 858 subjects in the sample p0pu1a- tion, a number of subjects were excluded from the various analyses because of incomplete information. However, due to the large sample size and random distribution of dropped cases through the sample, it was felt that a reduction in the N did not bias the results of the study. Hypotheses and Results A descriptive summary of the sample group for this particular analysis is given in Tables 4.0, 4.1 and 4.2. Hypothesis 1 The concept of educable mental retardation based on measured I.Q., as used by the Detroit Public School Sysf tem for special class placement, will vary over time as a function of race, sex and socio-economic class. 50 51 TABLE 4.0.--Composition of sample population by race, sex and socio-economic status. Socio-economic Race Sex Status Male Female High Low Black N = 245 160 85 37 ”_208 ' Percent of Total Sample 22.7 12.07 23.44 ‘76.56 34.80 ?.'? 1,; Caucasian N = 459 327 132 128 331 Percent of Total Sample '67.14 18.75 18.18 47.01 65.19 ?4"‘ ’ Total N = 704 487 217 165 539 Percent of Total Sample 69.17 30.82 23.43 76.59 100 1’ ‘ Q ’«5. u If " , ' t" TABLE 4.l.--Composition of the Detroit Public School Sys- 1 tem by race and age during the U.S. census years 1910-1960. Percent of C$2::S Blacks Peggigi Of White Total Total 1910 685 .8, 76,973 99.2 " 77,658 1920 4,094 2.5"“ 152,853 . 97.5 13: 156,947 1930 17,929 6," 263,524 94 1 ‘ 281,453 1940 24,208 9.7 224,192 90.3 248,400 1950 44,604 175' 211,214 83 1« 255,818 1960 109,128 48.2 133,677 51.8 - 242,805 Grand 1 :1 E ‘ 3 Total 200,648 » Q /‘/ ;'~" 1,062,433 1Based on ages 5 to 14 years. 52 TABLE 4.2.--Socio-economic status distribution by race, sex and time block. High Low Black Black Time Block Male Female Time Block Male Female 1 (1911-1936) 3 2 1 27 15 2 (1937-1953) 9 4 2 45 21 3 (1954-1970) 3 _1_g 3 67 13. Total 21 16 139 6 Percent of Grand Total 2.98 2.27 19.74 9.8 Caucasian Caucasian Time Block Male Female Time Block Male Female 1 34 17 1 126 56 2 53 6 2 59 35 3 13 _§ 3 42 11 Total 106 28 ‘227 I04. Percent of Grand Total 14.20 3.94 32.24 14.77 Grand Total 121 44 366 173 (N=704) Results.--To test Hypothesis 1, a multi-variate analysis of variance (Manova) for unequal cell sizes was used.* As indicated in Table 4.0, there is a dispropor— tionate number of low SES male students in E.M.R. classes. *All subsequent references to the multivariate analysis of variance technique are based on the use of Finn program. 53 A ratio in excess of 2 to 1 is noted between the male and female subjects placed in special classes for E.M.R. stu- dents. Further inspection of Table 4.0 indicates that on the socio~economic class measure, a ratio in excess of 4 to 1 between the low and high class groups was noted, thereby suggesting a differential distribution between the two socio-economic classes. These findings were consistent for both Black and White E.M.R.'s. Specifically, an in- verse diStribution was noted between the Black and Cau— casian E.M.R. subsamples. More specifically, Blacks represented 34 per cent of the total sample despite a variation in the racial composition of the school system over time. The implications of this disproportionately large number of Black students suggests the presence of a differential distribution along racial lines. Table 4.3 lists the mean I.Q. values by race, sex, socio-economic class and time blocks. Inspection of these data discloses that, irrespective of race, males (ié69) had higher scores than females (R567) on the initial intelligence test used for special class place- ment. Across social economic class, I.Q. was found to be higher for the high socio-economic groups (Ré7l.19) than 'the lower groups (E267.51). A similar pattern of differ- Aences in means was indicated across race and sex--i.e. “the Caucasian mean I.Q. values for both males (3569) and ifenmles (3&67) were higher than the corresponding mean 54 values for Black males (i368) and females (i566). Com- paring the time blocks discloses mean I.Q. value differ- ences between the three time periods specified. Thus, the initial mean I.Q. score of E.M.R. students, over time, has fluctuated over the 49 year period examined. TABLE 4.3.--Mean I.Q. scores by race, sex, socio-economic class and time block. Variable Mean I.Q. Black - Both sexes 67.42 Male 68.00 Female 66.31 Caucasian - Both sexes 68.88 Male 69.535 Female 67.272 Males - Both races 69.032 Females - Both races 66.898 Socio-economic class High 71.19 Low 67.51 Time Block Period 1 (1911-1936) 66.47 Grand Mean Period 2 (1937-1953) 70.69 Period 3 (1954-1970) Total N = 704 _— The analysis of variance findings summarized in Table 4.4 indicate that significant main effects were found at the .05 level for sex, socio-economic class and time blocks. These findings support the inferences drawn 55 TABLE 4.4.--Ana1ysis of variance of I.Q. scores on the basis of race, sex and socio-economic class. . Between F- Degrees Level of variable .2:::. Statistics Frzidom 5:222:1- Sex 668.0587 3.9602 1,680 .0470* Race 308.8471 1.8308 1,680 .1765 NS Socio-economic 1466.7782 8.6950 1,680 .0034* Class Time Blocks 1096.6591 6.4950 2,680 .0017* *P beyond the .05 level from the descriptive data previously presented, namely: the sex of the E.M.R. student, his social class status and the time period during which the initial certifying psychological examination was administered account for a significant portion of the variance associated with in- telligence test scores. Based on the findings listed in Table 4.4, Hypothesis 1 was rejected at .05 level for three of the four inde- pendent variables noted. These results support hypothesis that the initial intelligence measure used to certify E.M.R. students will systematically vary as a function of sex, socio-economic class and time period but not as a function of race. 56 Hypothesis 2 The exit pattern (e.g. return to regular grades) of students classified as educable mentally retarded will vary as a function of race, sex and socio-economic class. Results.--Tab1e 4.5 summarizes the chi square values calculated when comparing the type of exit pattern of E.M.R. students as a function of race, sex and socio- economic class. As is readily apparent, the only signifi- cant chi square value obtained was that of race. The absence of significance on the other variables suggest that the type of exit pattern taken by E.M.R. students does not show any systematic variation between the ob- served and expected frequencies found for sex or socio- economic class across action taken. Due to the extremely large chi square table (21 x 3), a complete table of ob- served frequencies was not included. However, those cate- gories containing extreme values which appeared applicable to the hypothesis are contained in Table 4.6. TABLE 4.5.--Chi square values for exit pattern of E.M.R. students as a function of sex, race, and socio-economic class. Obtained chi Value required for Variable square value SlgnlfDEaISSeIt the Sex 30.416 31.4104 N.S. Race 37.766 31.4104 * Socio-economic class 43.994 55.7585 N.S. *P beyond the .05 and .01 level 57 TABLE 4.6.--Selected categories of type of action taken by race. Race Action Categories Black Caucasian A* B* C* D* A? B? C* D” Cat. 1 Left school overage (dropout) 26 27 22.6 7.6 54 53 23.9 15.8 Cat. 2 Moved from school district 9 12.1 7.8 2.6 27 23.9 11.9 7.9 Cat. 3 Committed to Wayne County Training School 7 6.9 6.1 2.1 13 13.3 5.8 3.8 Cat. 4 Excluded from public school attendance ll 9 1 9.6 3.2 16 17.9 7.1 4.7 Cat. 5 No record of placement in E.M.R. classes 8 9 4 7.0 2.3 20 18.6 8.8 5.9 Cat. 6 Transferred to parochial school 0 0 0 0 13 8.6 5.8 3.8 Cat. 7 Recommended to continue in E.M.R. classes 20 12.1 17.4 5.9 16 23.9 7.1 4.7 Cat. 8 Trial placement in regular grade 4 l 7 7.8 1.2 l 3.3 .4 .3 Cat. 9 Contact with legal authorities 2 2 4 1.7 .6 5 4.6 2.2 1.5 Cat. 10 Recommended for work at age 16 3 6.7 2 6 .9 14 10.3 6.2 4.1 Cat. 11 Retested for E.M.R. class placement because first in- telligence test score was in normal range of intelligence 3 6.4 2 6 .9 16 12.6 7.1 4.7 Cat. 12 Referred to the Michigan Divi- sion of Vocational Rehabili- tation 6 1.7 5.2 1.8 3 6 1.3 .9 Total N = 341 Blacks, 115; 99 90.4 27.3 193 87.6 58.1 Caucasians, 226 *A = Observed frequency B = Theoretical frequency C = Percent of subgroup (i.e. racial group) total D = Percent of total group (i.e. both races) 58 InSpection of Table 4.6 indicates the following according to race and action taken: Certified E.M.R. Caucasian Students a. b. tend to be more prone to moving from school district than Blacks. transferred to parochial schools in greater numbers than Blacks. represented a smaller portion of the number of students recommended to continue in E.M.R.‘ classes after some form of subsequent re- evaluation. represented a larger proportion of E.M.R. stu- dents who, after certification as E.M.R., were not subsequently placed in E.M.R. classes. constituted a smaller prOportion of the number of E.M.R. students placed back in a regular grade situation on a trial basis. were more frequently recommended to be released from school at age 16 in order to work. once suspected of retardation, were frequently retested until the test results fell within the range necessary for special E.M.R. class placement. were less frequently referred to the Michigan Department of Vocational Rehabilitation Ser- vices. In contrast to the above inferences, Black students certified as E.M.R. were: less likely to move from the school district. not found to transfer to parochial school. more likely to be placed in E.M.R. class after initial evaluation and certification. represented a greater proportion of the E.M.R. student population recommended to continue in special E.M.R. classes. 59 e. less frequently recommended to be released from school at age 16 in order to work. f. seldom retested after the first evaluation be- cause their first test score was in the normal range of intelligence. 9. referred to the Michigan Department of Voca- tional Rehabilitation in greater proportion than their Caucasian counterparts. Although Hypothesis 2 cannot be rejected in total, the finding of a significant relationship between race and type of action taken supports a portion of the hypothesis. Clearly the race of an E.M.R. student does affect the route and type of subsequent action taken by the school and/or family following the initial evaluation and certi— fication of a student as E.M.R. Hypothesis 3 The delay in placement of certified educable mentally retarded students will vary as a function of race, sex and socio-economic class. Result§.--The delay in placement data are presented in Table 4.7. The mean value for each factor is presented by sex, race, socio-economic class and time period. An analysis of variance of the delay in placement data is presented in Table 4.8. There were no significant differences noted between the mean values at the .05 level. The results indicate that over time, sex, race and socio-economic class have not contributed significantly to 60 TABLE 4.7.--Mean values and variances for delay in place- ment as a function of race, sex, and time blocks. Mean delay in placement1 socio-economic class Variable Variance Black - Both sexes 6.04 877.01 Male 6.85 658.02 Female 4.46 218.99 Caucasian - Both sexes 6.21 1809.30 Male 6.49 1343.44 Female 5.54 465.85 Males - Both races 6.60 2001.46 Females - Both races 5.14 684.85 Socio-economic class High 5.80 620.93 Low 6.28 2065.38 Time Block Period 1 (1911-1936) 5.85 994.57 Period 2 (1937-1953) 6.02 1096.84 Period 3 (1954-1970) 7.08 594.90 Total N = 436 1 All values are presented in months TABLE 4.8.--Ana1ysis of variance for delay in placement as a function of sex, race, socio-economic class and time. f Between Group F- . Deggies Sigiifi- Mean Square Statistic Freedom cance Sex 196.18 3.2052 1 and .0742 413 N.S. Race .9678 .0158 1 and .9000 413 N.S. Socio-economic 29.0714 .4750 1 and .4911 class 413 N.S. Time Blocks 53.0507 .8667 2 and .4211 413 N.S. 61 variance associated with delay in placement of students in E.M.R. class in the Detroit Public Schools. Only modest differences were noted between the race, sex and socio- economic mean values. Though not statistically signifi- cant, an unanticipated trend toward an increase in the length of time prior to placement was noted. Examination of the cell frequencies and the wide range in the within cell variances provided a tentative explanation for the lack of more definitive results. Additionally, the broad range of the within cell variance values and cell sizes may have accounted for the lack of significant findings. Hypothesis 4 The initial age and grade of students at the time of psychological examination will vary as a function of race, sex and socio-economic class. Results.--In Table 4.9, the mean values for age and grade of the students at the time of psychological evalu- ation are presented. These data, as presented, allow for a comparative inspection between the age and grade across the factors of sex, race, socio-economic class and time block. The grade values are based on a ten month school year. Thus, a value of 3.2 represents a value of third grade - second month. Inspection of Table 4.9 indicates that students are generally referred for an evaluation during the latter 62 TABLE 4.9.--Mean values for students at the time of evalu- ation by age and grade. Mean Variable Age Grade Black - Both sexes 10.61 3.76 Male 10.62 3.65 Female 10.61 3.97 Caucasian - Both sexes 10.442 3.10 Male 10.34 3.09 Female 10.69 3.14 Males - Both races 10.43 3.27 Females - Both races 10.66 3.46 Socio-economic class High 9.83 3.09 Low 10.71 3.40 Time Block Period 1 11.05 3.13 Period 2 10.09 3.20 Period 3 10.20 3.80 Total N 688 660 63 portion of the third grade. Approximately six months difference was noted between the grade at time of re- ferral between Black and Caucasian students. Male Blacks were, however, referred earlier than female Blacks, while male Caucasians were referred later (8 grade months) than female Caucasians. In contrast to these findings was the early referral of high socio-economic students for evalu- ation compared to the lower socio-economic student group. Over time, the mean age for referral has dropped while the grade at time of referral has increased. Thus, students are now referred for an evaluation at an earlier age but this generally occurs at a higher grade. The analysis of variance summary listed in Table 4.10 indicates that significant main effects were found to exist between age at the time of evaluation and socio- economic status and time blocks. Grade at the time of evaluation (Table 4.11) was found to vary with race and time blocks. These findings support the observations made above regarding the reported mean values and posited inferences. Specifically, low socio-economic class Black students were referred for a psychological examination when in a higher grade than Caucasians. Moreover, the data strongly suggest that this referral pattern which systematically varies as a function of time and socio- economic class represents a changing school policy which may be attributed to a social promotion type policy--i.e. mmvo. omo one N Hmvo.m momm.ooHH mxooam oEHB .m.z mmma. omo one A ooob.a oopo.~vo mmeao owEonooelowoom mooo. omo one H mmom.va mmao.momm eoem .m.z ovom. omo one A wmao.a ommo.mao xem eoneoHMflnmem Eooeenm mo He>eq mo meeumeo oapmflueumlm onenvm new: neozumm 64 .n0flueoae>e mo eEHu ue eoenm How eonewne> mo mwmhaendlu.aa.v memes Hooo. voo one N Hvom.oH mmmm.hhaoa mMOOHm oEHB vooo. voo one H mmma.ma voom.vmoma mmeao OHEonOooIOfloom .m.z memo. voo one A moao. mhmv.moo ooem .m.z meme. woo one a mamo.a vam.mboa xom eowwomwwmmem mosmwwwmmo owumwuepmum onesom neez neezuem .noeueoae>e mo eEflu ue woe now eoneene> mo memhaen<:|.ofl.v mamme 65 Black students were promoted on to the next grade rather than retained when in academic difficulty. The dis- proportionate number of Blacks reported in Table 4.0 con- stituting the low socio-economic group and the changing racial composition of the E.M.R. student population (Table 4.2) over time lends additional support to the hypothesis regarding social promotion, i.e. promoted re- gardless of achievement level, and ethnicity. As is indicated in Tables 4.10 and 4.11, Hypothesis 4 can only partially be rejected by the data. More spe- cifically, the amount of variance found for age at the time of evaluation can partially be accounted for by the variances associated with socio-economic class and time blocks. Grade at the time of evaluation, however, was found to partially vary as a function of race and time blocks. Hypothesis 5 Changes in measured intelligence of educable men- tally retarded students will vary as a function of the length of time spent in Special classes. Results.--To test Hypothesis 5, Pearson product- moment correlation coefficients were computed for the following variables: 1. First I.Q. score 2. Age at the time of placement 66 3. Age at the time of first retest 4. Second I.Q. score 5. Age at second retest 6. Third I.Q. score 7. First I.Q. difference 8. First time period spent in E.M.R. classes 9. Second I.Q. score difference 10. Second time period spent in E.M.R. classes Operationally, variables seven through ten were de— fined in the following way: 3 First I.Q. difference (Var. 7) = (Var. 1) First I.Q. score minus (Var. 4) Second I.Q. score First time period spent in E.M.R. classes (Var. 8) = (Var. 3) age at first retest - (Var. 2) age at time of placement Second I.Q. score difference (Var. 9) = (Var. 1) First I.Q. score - (Var. 6) Third I.Q. score Second time period spent in E.M.R. classes (Var. 10) = (Var. 5) Age at second retest - (Var. 2) age at time of placement In Table 4.12 are listed the Pearson product-moment correlation coefficients found to be significant at the .05 level (values obtained > .250, with 62 degrees of freedom). It was found (Table 4.12) that the correlation be- tween the length of time spent by E.M.R. students in Special education classes and the differences in I.Q. over time vary negatively (r = -.68). Moreover, despite 67 .memmeao .m.z.m nfl gnome oownom eswu onooem H OH aeonenemmflo euoom .O.H onooem u m “memmeao .m.z.m nw unemm oownem eEHu women n o “mononemmwo .O.H umuflm u b xenoom .O.H omens u o «umeuen onooem mo eswu ue eoe u m aenoom .0.H onooem u v “umouen umuem mo eswu we owe u m Nuneeeoeam mo eEHu ue eme u N “whoom .O.H umuflm u H meaneflne>« no. u oa.m.vH “ma. u o.oa.vn “me. u m.v.NH «no. u m.N.HH 0H meaneflhe> oopomaem no mnowueHoHHoo Heflunem m em. m mo. mo.l h Nv.l o om. o no. hm.l em. v No. mm.| no. om. m mv.| ov. va. N mo. mm. H 0H m m h o o v m N a «oHQeHHe> .Hom I so u z .uaua meaoewne> neesuen mnowpeaenhoo uneEoEIuooooum nonneem||.NH.e names 68 the limited number of E.M.R. students with retest data, the trend indicates that the longer an E.M.R. student remained in special classes, the less likely were his intelligence test scores to vary from the original test score. The mean I.Q. values for the three testing indi- cated a modest increase between the initial and second I.Q. scores (2.13 points) followed by a decrease (6.5 points) on the third measure of intelligence. Supporting these findings was an r value of -.68 found between the first I.Q. difference (defined as first I.Q. score minus tflie second I.Q. score) and the first time period spent in Special education class for E.M.R. students. The lack of Euiditional data supporting this finding was attributed to true greatly reduced number of students who had not been aChninistered first and second retests. Of the original 8531 subjects receiving an initial intelligence test, only 3:37 received a second evaluation. Third evaluations were reduced to 77, thereby indicating that the probability of ‘311 E.M.R. student receiving two additional psychometric evaluations following his initial certification and place- Infitnt in an E.M.R. class is approximately 11 to 1 against his receiving such service. Hypothesis 5 was found to be significant at .05 level as based on the above results. 69 Hypothesis 6 Within special classes for students classified as educable mentally retarded, Blacks and Caucasians will differ as a function of the students' (a) place of birth; (b) number of schools attended; (c) mobility; (d) semesters repeated in regular grades prior to special class place- ment; (e) number of siblings in the family. Results.--Table 4.13 contains the chi square values obtained.for each of the components of Hypothesis 6. THABLE 4.13.--Chi square values comparing Black and Cauca- ssian E.M.R. students on birth place, mobility of school and residence, grade repeats and number of siblings in family. Obtained Degrees Value required Variable chi square of for significance value Freedom at .05 level Place of birth 209.026 45 67.5048 * Number of schools at‘lz:ended 11.046 11 19.675 N.S. Mobility 14.210 15 24.995 N.S. gemesters repeated 111 regular grades Prior to special czléiss placement 14.171 8 15.5073 N.S. 1Number of siblings 111 the family 22.495 14 23.684 N.S. *1) beyond .001 level 70 As is indicated in Table 4.13, the only factor which clearly differentiates between the two racial groups of E.M.R. students is place of birth. The majority of both groups were born in Detroit. Of the Black subsample, 55 percent were born in Detroit. Caucasians native to Detroit represented 64.5 percent of their subsample population. Inspection of the individual cells disclosed that the majority of Blacks not born in Detroit were born in the South. The states contributing highest by order to the E.M.R. Black population were found to be Mississippi, Georgia and Alabama. Caucasian E.M.R. students by con- trast, migrated to Detroit from Illinois, Tennessee, Kentucky and West Virginia. Mobility of residence and the number of schools attended by E.M.R. students did not indicate a signifi— cant difference along racial 1ines. Both groups varied only slightly from the total group mean values. These data are reported in Table 4.14. TABLE 4.14.--Means and standard deviations for Black and Caucasian E.M.R. students for mobility of residence and schools attended. Mobility of Residence School Mobility Mean SD Mean SD Blacks 2.6 1.9 2.6 1.8 Caucasians 2.5 2.1 2.4 1.6 BOth races 2.5 2.0 2.5 1.7 ‘ 71 A lack of significant difference was also found be- tween the number of semesters repeated in the regular grades prior to placement. This finding does, however, raise questions which can be interpreted as support of the presence of a social promotion policy for Black stu- dents. The respective mean values for Black and Caucasian E.M.R. students indicated that Black E.M.R. students re- peated slightly less regular grade semesters than their Caucasian counterparts. The observed values (Blacks, §$2.8, sd=l.6; Caucasians, i53.2, sd=l.8) found suggest that perhaps differential promotional policies account for the differences in mean and standard deviation values. Similar to the above, no significant differences were noted between race and family size. Regrouping of the data also failed to produce significant results. Summary In this chapter, the research findings concerning the relationship between the concept of educable mental retardation and sex, race, socio-economic class and time have been presented. In addition, the results from a number of component or sub-hypotheses have also been pre— sented. The groups of students studied varied in size according to the dependent variable under test because of incomplete data on some variables. However, the Ns were sufficiently large to insure that statistical power was 72 not lost as a consequence of reduced Ns. A summary of the hypotheses found to be significant is presented in Table 4.15. 73 TABLE 4.1S.—-Summary of hypotheses and sub-hypotheses found to be significant at the .05 level. Hypothesis 1: Results: Hypothesis 2: Results: Hypothesis 4: Results: Hypothesis 5: Results: Hypothesis 6: Results: The concept of educable mental retarda- tion, as used by the Detroit Public School System for special class placement, will vary as a function of race, sex and socio- economic class. Significant results were found for: sex (.0470), socio-economic class (.0034), and time blocks (.0017). The exit pattern (e.g. return to regular grades) of students classified as educable mentally retarded will vary as a function of race, sex and socio-economic class. Significant results found only for race (.01). The initial age and grade of students at the time of psychological examination will vary as a function of race, sex and socio-economic class. Age at the time of evaluation: signifi- cant results found for socio-economic class (.0004), time blocks (.0001). Grade at the time of evaluation: signifi- cant results found for race (.0002), time blocks (.0485). Measured intelligence of educable mentally retarded students, over time, will vary as a function of the length of time spent in special classes. r=-.68 between the first I.Q. difference and the first time period in E.M.R. classes. r=.69 between the second I.Q. score difference and the first I.Q. score. Within special classes for students clas- sified as educable mentally retarded, Blacks and Caucasians will differ as a function of the student's place of birth. Place of birth was significant at .001 level. CHAPTER V SUMMARY AND CONCLUSIONS Special classes for students certified as educable mentally retarded have increased approximately 400 per- cent (Mackie, 1969) across the United States during the past 20 years. In the state of Michigan during the fiscal year 1969~70, 55 million dollars was expended for the Operation of special education classes. Of this sum, classes for the educable mentally retarded accounted for over 50 percent ($34 million) of the total amount paid to local school districts. A significant portion of these funds were paid to large urban school districts, all of whom operate extensive Special Education Departments. DeSpite the question raised by some (Dunn, 1968; Dexter, 1958, 1960: Shulman, 1968) regarding the frequent mis- diagnosis of culturally different students and the ef- ficacy of existing programs, classes for the educable mentally retarded continue to expand. The purpose of this study was to examine the concept of educable mental retardation as a function of race, sex and socioéeconomic class over time in an urban school system. 74 75 Summary of Research Hypotheses The research hypotheses investigated were: 1. The concept of educable mental retardation based on measured intelligence, as used by the Detroit Public School System for special class placement, will vary over time as a function of race, sex and socio-economic class. The exit pattern (e.g. return to regular grades) of students classified as educable mentally retarded will vary as a function of race, sex and socio-economic class. The delay in placement of certified educable mentally retarded students will vary as a function of race, sex and socio-economic class. The initial age and grade of students at the time of pyschological examination will vary as a function of race, sex and socio-economic class. Measured intelligence of educable mentally re- tarded students, over time, will vary as a function of the length of time spent in special classes. Within special classes for students classified as educable mentally retarded, Blacks and Caucasians will differ as a function of the students' (a) place of birth; (b) number of schools attended; (c) mobility; (d) semesters repeated in regular grades prior to special class placement; (e) number of siblings in the family. Summary of Method A systematic randomly drawn sample of 858 test proto- cols and case histories were drawn from the file records of the Detroit Public School Psychological Clinic. The total sample consisted of 326 Blacks, 276 Caucasians, 585 males and 273 females. All subjects had been administered 76 an individual psychological evaluation and subsequently recommended for placement in classes for the educable mentally retarded in the Detroit Public School System dur- ing the time span of September, 1911 to January, 1970. Cases where organic brain damage was recorded by the clinic physician were excluded from the sample. Major variables were operationally defined as follows: 1. Educable mental retardation--certification and placement of a student in special education classes for the educable mentally retarded. Certification, as used in this definition, refers to the assessment process, whereby a student is administered an individual intelli- gence test--(e.g. Stanford-Binet, Wechsler Intelligence Scale for Children, Detroit Test of Learning Aptitude) and on the basis of I.Q. and "other factors" is recommended for special class placement. The general range of in- tellectual retardation considered to be educable has been an I.Q. between 50 and 75. 2. Race--Race was defined as the psychologist's judgment of the race of the student. Racial identifica- tion was generally recorded by the examining psychologist on the test protocol and case history form. 3. Sex--Sex, like race, defined on the basis of the examining psychologist's recording on the test protocol and case history form. 77 4. Socio-economic status--Socio-economic status was determined by using a weighted scale of the head of the student's household (usually father) a value was assigned on the basis of his education and occupation. The value represented a composite score which consisted of the equal 'weighting of occupation and education (see Appendix A). The data were coded and punched on IBM cards. Subse- quent analyses were performed by using the CDC 3600 com- puter at the M.S.U. Computer Center. The specific analytic techniques used were: (1) analysis of variance: (2) chi square: (3) the Pearson product-moment correlation. All decisions pertaining to tests of significance were made at the .05 level. Summary of Research Findings 1. The concept of educable mental retardation, as used by the Detroit Public School System for special class placement was found to vary as a function of sex, socio-economic class and time blocks. Race was not found to be a significant variable. 2. The exit pattern (e.g. return to regular grades) of students classified as educable mentally retarded was found to vary as a function of race. Sex and socio-economic class did not contribute significantly to the variance noted in E.M.R. students' exit patterns. 78 3. The delay in placement of certified educable mentally retarded students did not vary as a function of race, sex and socio-economic class. 4. The initial age and grade of students at the time of psychological examination varied only partially as a function of race, sex and socio-economic class. More specifically, age at the time of evaluation varied significantly with socio-economic class and time, but not with sex or race. Grade at the time of evaluation varied significantly with race and time, however, no significant main effects were found in its relationship with sex or socio-economic class. 5. Measured intelligence of educable mentally re- tarded students, over time, varies negatively with the length of time spent in special classes despite an initial increase in first retest scores. 6. Within special classes for students classified as educable mentally retarded, Blacks and Caucasians dif- fered significantly only as a function of the student's place of birth. The factors of number of schools attended, mobility, semesters repeated in regular grades prior to special class placement, and the number of siblings in the family were not found to be statistically significant. 79 Conclusions Based on the findings of this study, the following conclusions have been made: 1. The concept of educable mental retardation, as used by the Detroit Public School System for the placement of students in special classes,has fluctuated significantly over the forty-nine year time period examined. Moreover, the findings of significant main effects for sex and socio- economic class indicate that males from low socio-economic status homes are more likely to be diagnosed and placed in classes for the educable mentally retarded than females from comparable socio-economic backgrounds. Although race was not found to be a significant factor in special class placement, the disproportionate increase of Blacks found in special classes over time suggest a differential place- ment practice along racial lines, particularly as the trend relates to Black males. 2. The exit pattern for E.M.R. students placed in special classes was found to vary as a function of race. This finding is indicative of a school policy which Jbasically retains Black students in special classes once 'they are diagnosed and placed. Caucasian students, on the (other hand, were found to have access to exits such as izransferring to parochial schools, moving from the school (iistrict, or entering the job market. 80 3. Students from high socio-economic homes are more likely to be referred at an earlier age for psychological evaluation if retardation is suspected. 4. Social promotion appears to have become a more prevalent practice as the racial composition of the school system changed from Caucasian to Black. 5. Measured intelligence, over time, for the E.M.R. student appears to follow the same fluctuative pittern as the Self Concept of Academic Ability of E.M.R. students 6. A significant proportion of Black students found in classes for the E.M.R. have migrated to Detroit from southern states, while their Caucasian counterparts have migrated primarily from the Appalachian region. Discussion The purpose of this study was to examine the concept of educable mental retardation as a function of race, sex and socio-economic class in an urban public school system. Although the results appeared, at various points, to be obscured to a degree by yielding only partially significant findings, they do suggest that of the three independent variables (race, sex and socio-economic class) all were found to significantly account for part of the variance associated with conceptual definition of retardation on either a placement or treatment level. 81 The impact of special class placement on the E.M.R. student's self concept of academic ability has been in- terpreted (Towne and Joiner, 1965) as a function of change in reference groups. Similarly, it appears that the fluc- tuations in the E.M.R. student's I.Q. score can also be interpreted as a function of changing reference groups and lowered self concept of academic ability. Moreover, the change appears to vary as a function of the length of time spent in the regular grades prior to placement in special class. That is, if a given student did not enter an E.M.R. special class until late in his academic history, the like- lihood of his testing higher on the retest is increased. Conversely, students entering special classes at an earlier grade and age test lower on the retest. Combined with the age factor and early placement is, perhaps, the socio-economic class factor noted by Mercer (1965), namely that higher socio-economic status groups are more accepting of retardation as an irreversible con- dition and consequently develop a set of expectancies which are not in conflict with the normative model used in Special education classes. The finding that the higher socio-economic groups were placed earlier in special classes and retained longer supports Mercer's position. However, this appears generalizable primarily for Cauca- sian E.M.R. students. Blacks, contrary to Caucasians, appear to be diagnosed and placed on the basis of a lack 82 of acculturation which is interacting with a deficit of academic and intellectual skills. The action taken toward Black students, once placed, however, suggest a redefining of these factors into medically based handicaps; thus, the greater referral to the Division of Vocational Rehabilita- tion in contrast to recommending entrace into the job market at age sixteen. The question of predicting what will be the composi- tion of an urban school district E.M.R. class can be in- terpreted in the following manner. Students placed in urban special education class for the E.M.R. will gen- erally represent an ethnic or cultural group which has little power in determining the type of label or process of labeling imposed upon them. Although a small portion of the urban E.M.R. students will come from high socio- economic status homes, the majority of the E.M.R. stu- dents will be from groups who are not acculturated to the degree that their voices are heard at the decision-making level. However, as these groups gain in economic and political power, they are generally replaced with a newly arrived low socio-economic group who then assume the label of being ethnically or culturally different. The incidence and proportion of retardation found in the new group gen- erally will increase disproportionately until the hier- archial structure is changed. 83 Implications for Future Research In view of the findings of this study and of the relationship of these findings to other studies in mental retardation and mental health, a number of research ques- tions to further examine this relationship are presented. 1. What is the incidence of organic brain injury across social class? What Specific social and academic behaviors were used as a basis for referral for initial psychological evaluation of E.M.R. students? Are there specific sub-test variational pat— terns between ethnic groups and socio-economic classes within an E.M.R. population? Is there a correlation between the school psy- chologist's socio-economic status and the type of educational recommendation made? Can reference group manipulation vary the I.Q. scores of E.M.R. students? Is there a relationship between the length of time spent residing in an urban area and the number of migrant students placed in E.M.R. classes? Would a follow-up study of former urban E.M.R. students indicate stability of intelligence and socio-economic status? 84 Implications for Future Special Education Programs One implication of this study for future special education programs appears to be that the concept of E.M.R. as presently used minimizes the socio-cultural variables which are quantitatively interpreted as forms of devianCy within a normative model. Limited attention appears to have been given to the qualitative variations found within and between diverse socio-economic and racial groups; particularly in terms of how these differences affect diag; nostic and pedagogic interpretation. These limitations underscore the need for differential diagnosis and develop- ment of educational programs which acknowledge the psycho- social undergirds of mental retardation. Moreover, the need for viewing the E.M.R. population as a heterogeneous rather than homogenous group is vital to the implementing of appropriate educational programs. Second, a refocusing and redefining of the present definition of E.M.R. appears in order; particularly along the dimension of adaptive behavior. The developing of quantitative and qualitative instruments which are sensi- tive to adaptability are needed before we can really focus on what retardation represents. Thirdly, the imposed label and resultant shift in expectancies needs to be re-examined within a "normal classroom setting." If the data as reported in this study 85 are indicative of the efficacy of segregated E.M.R. classes perhaps the need for additional classes can be reduced by revising the behavioral criteria used in certi— fying and placing students in E.M.R. classes. 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APPENDIX 96 APPENDIX A SOCIO-ECONOMIC STATUS SCALE Education Eighth grade or less Some high school High school graduate Some college College graduate Post—graduate education Occupation Labor (unskilled labor) Service workers (waiter, maid) Operative (semi-Skilled, e.g. machinist) Technical, craftsman (foreman, mechanic, bricklayer) Manager, official, proprietor, minister Professional Unemployed Prison Combined Weights (Education and Occupation) 12 11 equal 1 10 9 8 equal 2 7 6 5 4 3 equal 3 2 97 Weight O‘LflfiWNH Weight ALuRHH oooun "IllifllllllfillillfifilES