To examine the relationship between superior intellectual functioning and physiological patterns and events during sleep, sleep records made on five consecutive nights and based on standard electrographic measures were made for 11 male children between 8 and 12 years of age. (RH)

Analyses of 109 drug-abusing adolescents indicated that inhalant abusers performed significantly more poorly than polydrug abusers on 20 of 67 neuropsychological measures. Deficits were observed on both global (WAIS and WRAT) and specific measures (perception of speech sounds, visual suppression, sensory perception, and trails). (Author/SJL)

The scores of elementary school students on the Quick Test were compared with scores on the Full Scale Wechsler Intelligence Scale for Children-Revised. The relationship between the two tests varied significantly with age and intelligence levels. (Author/CP)

This study provides guidelines for practitioners to determine the minimum differences, in scaled score points, needed for statistical significance when applying the Bannatyne recategorization of Wechsler Intelligence Scale for Children--Revised subtests on a individual basis. (Author)

The Genetics Society of America has released a statement saying that the possibility of a "genetic difference in intelligence between races" is still an open question and warning against "the misuse of genetics for political purposes". (Editor)

Responds to "Birth Order and Intelligence: Further Tests of the Confluence Model" by Robert D. Retherford and William H. Sewell. Reviews their arguments and suggests that their analyses of the Wisconsin Longitudinal Study data support rather than contradict the model. (CJS)

Uses neuropsychological and developmental models of number, counting, and arithmetical skills as well as supporting working memory and speed of articulation systems as the theoretical framework for comparing groups of low- and average-IQ children. Indicates that low-IQ children's conceptual understanding of counting did not differ from that of…

Describes a system of categories to subdivide the gifted and talented population into the following more homogeneous subgroups: mild, moderate, high, exceptional, and extreme. Based on the metric system, each of the five levels, including the minimum threshold, selects the top 10% of the previous level. (Author/CR)

General education classrooms are increasingly diverse as students with and without disabilities learn alongside one another. At each level, all students are learning to read and reading to learn standards-based content. A worry among some general and special educators who otherwise support the principles of inclusive education is what to do about…

This paper investigates the differentiation of cognitive abilities as a function of neuroticism. Specifically, we examine Eysenck and White's [Eysenck, H. J., and White, P. O. (1964). Personality and the measurement of intelligence. British Journal of Educational Psychology, 24, 197-201.] hypothesis that cognitive abilities are less differentiated…

Lynn [Lynn, R., 2002. Sex differences on the progressive matrices among 15-16 year olds: some data from South Africa. "Personality and Individual Differences 33," 669-673.] proposed that biologically based developmental sex differences produce different IQ trajectories across childhood and adolescence. To test this theory we analyzed the…

The impetus for our study was the contention of both Lynn [Lynn, R. (1991) "Race differences in intelligence: A global perspective." "Mankind Quarterly," 31, 255-296] and Rushton [Rushton, J. P. (1995). "Race, evolution and behavior: A life history perspective." New Brunswick, NJ: "Transaction"; Rushton, J.…

This article considered some of the assumptions underlying studies of race and I. Q., the degree to which these studies can serve as secure guides to educational strategies, and the wider implications of such research for the value systems that operate within academic institutions. (Editor/RK)

Some of the key problems of educational equality -- equality of opportunities and inequality of performance; individual differences vs. group differences, coping with group inequality -- are made explicit. (Author/KM)

A critical review of Jensen's book which contains a reprint of the original controversial 1969 "Harvard Educational Review" article, 5 related articles by Jensen, and a bibliography of related articles. (EH)