Measures of head injury, executive functioning, and intelligence were given to a community sample composed of 102 male perpetrators of intimate partner aggression (IPA) and 62 nonaggressive men. A history of head injury and lower mean score on a measure of verbal intelligence were associated with the frequency of male-perpetrated physical IPA as…

We examined the effects of early life stress (ELS) on intellectual ability in 2,725 20-year-old male participants, of whom 321 were separated temporarily (mean 1.7 years) from both their parents during World War II, at an average age of 4.3 years. Intellectual ability was tested when entering compulsory military service. The separated men had…

The association between fluid intelligence and inter-individual differences was investigated using multilevel growth curve modeling applied to data measuring intra-individual improvement on math achievement tests. A sample of 166 students (88 boys and 78 girls), ranging in age from 11 to 14 (M = 12.3, SD = 0.64), was tested. These individuals took…

General cognitive ability ("g") does not explain sex differences in academic test performance by the end of compulsory education. Instead, individual differences in specific reasoning abilities, after removing the effects of "g," may contribute to the observed gender gaps. Associations between general or specific cognitive…

This study examined the construct validity of antisocial personality disorder (ASPD) diagnosed in adolescence. Boys and girls were grouped by history of DSM-III-R conduct disorder (CD) and ASPD: Controls (n = 340) had neither diagnosis; CD Only (n = 77) had CD by age 17 but no ASPD through age 20; Adolescent ASPD (n = 64) had ASPD by age 17. The…

Scores on Raven's Progressive Matrices correlated positively with electroencephalogram-recorded alpha rhythm frequency (AF) in 101 healthy male adults, as did one test of verbal ability and one of mental performance. However, AF did not show significant relationships with general intelligence or spatial and arithmetic abilities. (SLD)

In this study of developmental precursors of adolescent behavior, the developmental trajectories of 435 boys from ages 3 through 15 were traced for selected correlates of delinquency (childhood antisocial behavior, low verbal intelligence, reading difficulty, and family adversity). (PCB)

The validity of Wechsler's Performance--Verbal IQ sign was examined for psychopathic, neurotic, and subcultural delinquent boys. The psychopathic group scored significantly higher on the performance scale than on the verbal scale, and lower on the comprehension subtest than the other groups. Findings were related to characteristics common to…

Study examined the relative importance of vocabulary, general intelligence, language background and socioeconomic status in determining the grade level achieved by Indian boys aged 12-14 from several cultural groups in Western Canada. (Author)

Research on interpersonal self-fulfilling prophecies has recently turned to an examination of the effects of teachers' expectation on their pupils' learning. Only two of the earlier studies, however, employed as subjects an entire elementary school population. The present replication found that those boys of whom teachers had been led to expect…

The relationship between academic failure and poor verbal abilities was studied in young aggressive boys. Results did not indicate a generalized deficit in verbal development among young aggressive boys. However some deficit in mediational use of verbal ability may be present in aggressive boys. (Author/MV)

A cross-cultural quantitative review of contemporary findings of gender differences in variability in verbal, mathematics, and spatial abilities finds that the well-established U.S. finding of considerably greater male variability in mathematical and spatial abilities is not invariant across countries and cultures. (SLD)

This article integrates the literature on intelligence and achievement outcomes in boys with Klinefelter syndrome (KS). It reports results of a study following 36 boys with KS and 33 sibling controls. Boys with KS demonstrated verbal cognitive deficits and significant underachievement in reading, spelling, and arithmetic, which increased with age.…

Changes in verbal, spatial, and reasoning intelligence among Swedish 13-year olds were studied from 1960 to 1990. Rising verbal scores until 1980 have been followed by a decline to essentially the 1960 level. Spatial and reasoning results have risen continuously. Gender and social class differences are discussed. (SLD)