Investigated racial differences in the Minnesota Multiphasic Personality Inventory by comparing samples of Black and White men charged with murder (N=160). Results indicated Black murderers tend to deny symptoms of pathology and are more socially outgoing. The confounding effects of intelligence suggested separate Black and White norms are…

A three-stage model for the evolution of theories of intelligence is proposed and applied to understanding the evolution of correlationally based and experimentally based theories of intelligence. In stage one, alternative conceptions compete. In subsequent stages, alternative conceptions, which combine elements of prior approaches, emerge and…

The purposes of this study were to investigate adolescent intellectual decline, and to attempt to determine some of the sexual differences possibly inherent in the phenomenon. It was hypothesized that (1) girls would decline in greater numbers and to a greater degree than boys; and (2) areas and amounts of sex differences of the decliners would…

Reports the recent work by Arthur Jensen correlating reaction time to intelligence. Jensen hypothesizes a noncognitive mechanism for superior reaction times. (MDR)

A review of research studies on the effects of fenfluramine as a pharmaceutical treatment for autistic children is presented. Fenfluramine had positive effects on the reduction of hyperactivity and stereotypic behaviors in approximately one-third of subjects. The best responders were children with the highest baseline intelligence quotients.…

The stigma associated with being labeled as mentally handicapped is discussed. (DB)

Dissects the controversial Jensen paper, and concludes that Jensen is wrong. (DM)

Geneticists discuss the Jensen paper and suggest upon reviewing the evidence, that the question of genetic differences between the IQ of blacks and whites cannot be answered in the present circumstances. (DM)

Multiple discriminant analysis of Minnesota Multiphasic Personality Inventory (MMPI) scores between high-IQ White, high-IQ Black, low-IQ White, and low-IQ Black subjects yielded two significant canonical variates. Results suggest that racial differences on the MMPI do not occur in all racial comparisons but are restricted to low-IQ groups. (Author)

Because no single characteristic defines intelligence, there can be no adequate process-based definition of intelligence. In principle, a combination of many empirically derived measures into a single index, as in a Binet test, would be appropriate. In practice, many of the relevant characteristics are simply impossible to measure. (Author/RD)