In investigations of decline of intellectual status with age, cross-sectional and longitudinal studies give divergent results--the former show almost universal declines in test performances among older groups while the latter often show gains. Although few structure-of-intellect (SI) factors have been explored in relation to adult ages, two kinds…

The social-class, ethnic, and racial differences in performance on tests of intelligence and scholastic achievement are discussed. Significant deficiencies exist in the means of lower-class and certain racial groups for many measures of ability, motivation, and performance. Composite attempts to estimate the proportion of phenotypic variance in IQ…

Contents of this book include: an introductory preface by C. Loring Brace; "Introduction to Jensenism," C. Loring Brace; "Can we and should we study race differences?" Arthur R. Jensen; "Intelligence in Black and White," Alexander Alland, Jr.; "Whose is the failure?" Vera John; "The influence of…

This book aims: (1) to describe and evaluate psychological research on poor children's intellect; to this end, the following questions are dealt with: What is the nature of poor children's mental abilities? How do these abilities develop? (2) to analyze the psychological assumptions underlying several attempts to reform education; and, (3) to…

Cognitive deficits in black and other minority children have been assumed, described, and then explained. In direct and indirect ways, the "evidence," especially in the broad public domain has been mounting to suggest a genetic cause for discovered differences between racial groups on test of aptitude and achievement. It is the purpose of the…

Psychologists and a few sociologists have provided the academic respectability for the political rationale that the American body politic's civil rights indigestion needs a resurrected, separate but equal diet. Today, it is intellectually respectable to question the genetic equality of whites and blacks, to assert the cognitive incapacities of…

This paper critically examines the portions of Arthur Jensen's books, "Genetics and Education" and "Educability and Group Differences," that concern Barbara Burks' 1928 study of adoptive families. Jensen cites the low correlations of children's IQs with measures of home environment from Burks' study as evidence that environment…

This volume of the "Disadvantaged Child" Series presents papers on all aspects of the compensatory education debate, written in large part by many of the educators who played leading roles in this program. Part I provides a comprehensive overall picture of the program. Part II discusses culture-fair testing, "Jensenism" and…