In this article, it is argued that it makes sense to define and distinguish three levels of human intelligence: intelligence as genotypical potential, intelligence as actualised in environmental interaction, and intelligence as measured by tests (IQ). This raises the questions of what is meant by the term "intelligence as potential", and…

Studies by the late English psychologist Cyril Burt of IQ scores of separated twins strongly suggested that intelligence was inherited. A summary of recent research costs doubt upon the validity of Burt's work. (SL)

The portions of Inequality: A Reassessment of the Effect of Family and Schooling in America (Jencks, et al 1972) concerned with inequality in cognitive skills and estimating the heritability of IQ scores are reviewed. For related articles see TM 501 196-200. (MLP)

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 purpose of this paper is to clarify some of the conceptual issues involved in discussions of psychology and education which rely on the assumption that biological factors serve as a basis or are responsible for human intelligence. (Author/ND)

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 collection of essays about intelligence stems from the revived nature-nurture controversy about the origins of mental abilities, led notably by Arthur Jensen, whose article in 1969 created a furore in the U.S.A., and more lately by H. J. Eysenck in Britain. In planning this book, an attempt has been made to step back from the debate itself…

This paper examines evidence supporting the hypothesis that environment differentially affects intelligence in a sex-specific manner. The current position that environment and heredity contribute interactively to intelligence obscures the greater vulnerability and exposure of males to environmental influences and the reciprocal lack of equivalent…

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…

Contents of this book include the following articles: "Genetics and competance: Do heritability indices predict educability?" Jerry Hirsch; "The role of experience in the development of competence," J. McVicker Hunt; "Intelligence-- why it grows, why it declines," John L. Horn; "The demographic context of metropolitan education," Karl E. Taeuber;…

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…