In this response to the critiques by Jensen and McVicker Hunt, we focus on the meaning of g, the permanence of effects produced by early education, and the educational significance of IQ gains produced by early education programs. New longitudinal data from our study presented. (Author/RD)

Using Locus of Control in Three Achievement Domains (LOCITAD), this study examines differences in locus of control orientation for 80 Anglo, 80 Black, and 44 Chicano high school students with respect to success and failure in three domains--intellectual, social, and physical. (Author/MP)

Administered the Raven Progressive Matrices (RPM) to (N=408) individuals in 100 family groups. Scores on all five subtests were highest in the 18-26 age group, decreasing with age. Males scored higher on each subtest in each age group. Performance on the RPM increased with additional years of education. (Author)

An experiment was designed to find out whether there were any quantitative and qualitative differences in the spoken discourse of 'high' and 'low' ability 16-year-old pupils in discussions of problems arising from textual material. Cognitive, linguistic and quantitative analyses of the discourse were carried out. (Editor)

This paper is intended to aid interpretation of intelligence tests in light of neurological findings and to suggest future test designs which would reflect cerebral hemisphere specialization. The need is emphasized for improved measures of right brain functioning, especially for Blacks, who exhibit some degree of right hemisphere preference. (SJL)

Explanations of differences in IQs of Northern and Southern Blacks focus on selective migration (hereditarians) or environmental causes such as education, discrimination and cultural deprivation. In this paper the environmentalist position is questioned and certain neglected features of Lee's data are construed as providing strong evidence for…

Suggests that the general ability structure for retardates is more complex than the structure for normals, containing a "stimulus trace" factor in addition to verbal-educational and spatial-perceptual parameters. (RL)

This study examines some relationships pertaining to socioeconomic status and cognitive ability patterns in fourth graders. Specifically, it explores the relative merits of Jensen's hierarchical theory of two levels of cognitive ability, in contrast to a process scheme, positing two parallel modes of coding information. (Editor/SJL)

This article examines psychometric analysis regarding the viability and limits of IQ testing in the context of "The Bell Curve." It discusses eyeball analysis versus item analysis, mean differences, validity coefficients, general intelligence, and IQ and gifted education, and urges a search for intrapersonal and environmental catalysts…

Examined low achievement in normal-or-above intelligence early adolescents born preterm, in a longitudinal study from birth through 12 years of age, compared to a group with no achievement problems. Found significant group differences in several domains in early adolescence. Also found that biological and social factors in infancy were associated…

Commentary on "The Bell Curve." Points out that Herrnstein and Murray do not acknowledge their politically conservative funding sources. Discusses bias and inadequacies of IQ tests, lack of evidence of intergenerational reproduction of occupational classes, current underemployment of highly educated people, and the authors'…

"The Bell Curve" claims that most human differences and almost all social injustices can be traced to intelligence, and that distribution of intelligence should influence distribution of educational resources to allow students to find their proper and inevitable place in society. Applied to educational policy, this vision of the world…

Platelet serotonin (5HT) levels of 5 autistic subjects (ages 16-37) who had siblings with either autism or pervasive developmental disorder were significantly higher than levels of 23 autistic subjects without affected siblings. Autistic subjects without affected siblings had 5HT levels significantly higher than 10 normal controls. Sex, age, and…

The double-deficit theory of reading disabilities (RD) was examined in 56 children with reading disabilities and 45 controls (ages 8-11). Students differed on all phonological analysis tasks and rapid naming of digits and letters, but also differed on orthographic tasks, attention ratings, arithmetic achievement, and all WISC-III factors except…

A comparison of 46 college students with learning disabilities (LD) who received permission to waive a foreign language (FL) requirement with 21 students with LD who fulfilled the requirement found that more students who had petitioned had a 1.0 standard deviation discrepancy between IQ and achievement and were referred only for FL learning…