Performance on the Wechsler Intelligence Scale for Children-Revised was compared for reflective and impulsive children, aged 8-11. Reflective children scored higher on the attention-concentration and visual organization subtests. There were no significant differences in verbal comprehension. (Author/GDC)

Comparison of the mental status of 30 subjects with Down's Syndrome mosaicism and 30 matched subjects with trisomy 21 Down's Syndrome found that the mean intelligent quotient of the mosaic Down's Syndrome group was significantly higher and that this group showed better verbal abilities and more normal visual-perceptual skills. (Author/DB)

This paper summarizes empirical findings of research on a theory of general mental ability, based on laboratory studies of the relationship between measurements of individual differences on conventional psychometric tests and in speed and efficiency of information processes. The paper covers characteristics of "g" (general mental ability),…

Research has shown that differences among ordinary people in intelligence and personality depend equally on individual genetic variability and on differences in the environments that siblings experience within the same family, not differences in the neighborhood, school, and community environments. As of yet, there are no adequate theories to…

To clarify the effects of noise, sex, and intelligence on student performance, 289 sixth-grade students were randomly assigned either the Standard Progressive Matrices (SPM) or the STEP Reading Test Form 3 (STEP III) to be taken under high- or low-noise classroom conditions, with gender and intelligence as variables. Students who took the SPM…

This document is a book review of "Bias in Mental Testing" by Arthur R. Jensen. Jensen discusses intelligence as a phenotypic construct. The problem of ethnic differences in phenotypic intelligence is emotionally charged, which makes rational consideration of the issues difficult. The reviewer disagrees with the author's predisposition…

A DISCUSSION ON THE VARIOUS RACES WAS PRESENTED. STATISTICS SHOWED THAT LIKENESSES AMONG GROUPS WERE ABOUT 95 PERCENT, WHILE DIFFERENCES WERE ONLY 5 PERCENT. FROM THE BIOLOGICAL STANDPOINT, THERE WAS NO PHYSICALLY INFERIOR OR PHYSICALLY SUPERIOR RACIAL TRAITS. THERE WAS NO PROOF THAT "RACE" AND INTELLIGENCE WERE LINKED. RATHER EVIDENCE…

The replication, with 192 adults, of research concerning implicit intelligence theories suggested a simpler model of implicit theories than that proposed by R. I. Sternberg et al (1981). Using a sorting procedure, a second study (N=88 undergraduates) showed that people distinguish intelligent and unintelligent behaviors without distinguishing…

Reports a study using meta-analytical procedures to compare WISC-R subtest performance patterns of 29 samples of retarded, average, and above average intelligence children. Shows how the study results in distinct WISC-R profiles for each group and demonstrates how the subtest performance patterns are strongly related to overall intellectual level.…

Paper contains research from author's doctoral thesis. (JM)

School psychologists, considered experts on intelligence and assessment, have an ethical obligation to read and understand "The Bell Curve: Intelligence and Class Structure in America." Many would rather avoid than confront issues presented. Discusses four questions to consider before dismissing the book: "How helpful is it?"; "Could the…

Characterizes intelligence in terms of learning processes and uses the concepts and methods of other disciplines to understand how the conditions responsible for the development of its constituent processes and the manner of their organization lead to variations in effectiveness of intellectual functioning. (Author/JM)