A classification of natal influences is proposed with a model of their operation. Natal influences affect maternal capacity, maternal load, and maternal efficiency. Since maternal load is increased in twin pregnancy, results of twin studies must be generalized with caution. The method of co-twin control is exemplified by examination of a small…

The authors are emmersed in a comprehensive review of the literature on intellectual sex differences. This paper consists of the first progress report and the tentative hypotheses of the work completed so far. Discussion is initially concerned with verbal and spatial abilities. It is concluded that girls learn language earlier, and may continue to…

This study used 126 young adult black and white male inmates to test the comparability of the Pauker and Statz and Mogul short forms with the standard Wechsler Adult Intelligence Scale (WAIS). The Pauker form was superior with this population. Findings should not be generalized to other ages, races, or to women. (Author/CP)

Racial and social class factors as a determinant of school achievement for minority group children are discussed with reference to the many empirical studies in this area. (Author/AM)

Notes that preschool compensatory education has not resulted in any appreciable, durable gains in I.Q. or scholastic achievement. Posits that compensatory programs remedied deficiencies in knowledge but not in cognitive processes. Suggests further research into the nature of intelligence and its malleability. (PGD)

Investigated whether attitudes toward school mathematics on mathematical achievement differed between low and high intelligence eighth-grade students in three Japanese schools (N=808). Results indicate that the attitude of low intelligence students is more important and it affects more in magnitude than that of high intelligence students. (JN)

Subjects were 30 boys aged 9-12 with learning disabilities. Lower socioeconomic status (LSES) learning-disabled boys scored lower than the normal population on both verbal and performance scales of the WISC while upper-middle socioeconomic status (USES) boys scored lower only on verbal tests. USES boys scored higher than LSES boys in Performance…

Studies the relationship between social class and intelligence age five among 400 children of mature birthweight and without significant prenatal complications, in order to identify variables which would statistically account for the influence of social class upon I.Q. (Author/JM)

Persons representing the extremes of intelligence cannot be included in the same study unless they are approximately equated on mental age, in which case the relative performances of the extreme groups can provide useful information about the nature of intelligence. (Author/RD)

This article reviews sex studies of children of cousin marriages and three studies of children of incestuous matings. It is argued that these studies, taken as a whole, provide no substantial evidence for an inbreeding depression effect within the polygenic system commonly asserted to determine IQ. (Author/DB)

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)

Robert J. Sternberg's research on cognitive style and model of "mental self-government" at all educational levels have led to a pilot elementary/secondary curriculum to help students develop common sense and practical judgment as well as intellect. The interinstitutional effort between Yale and Harvard universities includes Howard…

This article explores what the concept of intellectual character offers that traditional views of intelligence based on abilities do not. The origins of the concept of thinking dispositions are traced and various views regarding the dispositions that might comprise and define one's intellectual character are investigated. Educational implications…

As a response to recent public debate about the nature of intelligence, this article reviews the "state of the art" in the study of intelligence, exploring significant conceptualizations of intelligence, the use and interpretation of intelligence tests, racial or ethnic differences in intelligence, and major issues yet to be resolved.…

Lower class black and lower class white first-grade children learned an unorganized and an organized list of words to test Jensen's hypothesis of racial differences in mental abilities. Both groups of children performed significantly better on the organized list with comparable means for each list. Most of the predicted relationships were not…