Factor analyzed Wechsler Intelligence Scale for Children-Revised scores of low-IQ youths aged 9-11 and 14-16. Extracted Verbal Comprehension, Perceptual Organization and Freedom From Distractibility dimensions for each group. Coefficients of congruence indicated the two age groups were not similar on the Freedom From Distractibility factor.…

Compared the WISC-R Verbal-Performance IQ discrepancies of learning-disabled children and of the normative sample. It was concluded that without clinical evidence to suggest otherwise, it cannot be assumed automatically that a child's discrepancy score, unless of extreme magnitude, is related to the learning disability itself. (Author)

Educable mentally retarded (EMR) and nonretarded (NR) adolescents verified superordinate and basic level descriptions of common objects. Results suggest that EMR subjects had difficulty making semantic classification decisions in general. Other results suggest that group differences in semantic processing speed were related to the deliberate…

Discusses results of a study comparing the self-concept of intellectually gifted 9th-grade- students with that of intellectually average students, and investigates the relationships that existed among self-concept, intelligence test performance, reading comprehension, mathematics achievement, and overall composite achievement. No significant…

Interviews with 21 high-functioning adults with autism and 20 mildly to moderately mentally retarded adults without autism indicated that the mentally retarded group had more sexual experiences, with no intergroup differences in sexual knowledge or interest. Intelligence quotient was positively correlated with knowledge scores and males had…

Investigated whether assertive and nonassertive individuals differ in defense mechanisms they most typically rely on when confronted with interpersonal stress and conflict. Results indicated assertive males and females both endorsed the most adaptive defense mechanism cluster, whereas nonassertive males and females endorsed more primitive defense…

Compares a group of 32 toddlers with employed mothers with a matched group of 38 toddlers with nonemployed mothers in order to examine the effect of maternal employment on the development of the child. While no differences were found between the two groups in language development and emotional adjustment, children of employed mothers were more…

Reported the regrets of intellectually gifted subjects to determine if the nature of their regrets mirrored those reported by the general population. Analysis of survey responses of subjects (mean age=74) revealed that, like the population as a whole, they harbored more regrets of inaction than regrets of action. (RJM)

Ronald C. Johnson argued that if early environmental stimulation or deprivation has a significant effect on intellectual ability, then individuals who are genetically identical and who are exposed to a common early environment should resemble one another more closely in IQ than similar individuals who have not shared a common environment. Johnson…

When differences in level of motivation were controlled, all of the previously found differences between firstborn and later born disappeared. (Authors)

Second generation, middle-class, Black youth and middle-class White youth completed the Stanford Binet, WISC-R, or the WAIS. Results indicated that Black youth exceeded the White sample mean on the Stanford Binet and the WISC-R. Previous intelligence differences may have reflected educational and socioeconomic differences. (Author/RC)

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)

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…

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…