Some researchers have argued that discrepant broad index scores invalidate IQs, but others have questioned the fundamental logic of that argument. To resolve this debate, the present study used a nationally representative sample of children (N = 1,200) who were matched individually for IQ. Children with significantly uneven broad index score…

In the area of cognitive skills, the actual differences between males and females are relatively small. Females score slightly higher on verbal tasks and males score slightly higher on mathematical tasks. According to the cognitive approach to stereotypes, people should perceive these differences to be quite large. To determine whether subjects…

Relates the development of theories concerning gender differences in mental ability and reexamines them using meta-analysis. Finds that the greatest difference is in one type of spatial ability, mental rotation. There is only a small difference in mathematical performance, and no difference in verbal ability. (DM)

Compared 12 right-handed adolescent females with a history of idiopathic precocious puberty to 12 closely pair-matched normal controls of similar maturational status to test the association of physical maturation with cognitive abilities and the mediation of this association by hemispheric specialization. (HOD)

Administration of verbal and nonverbal measures to 20 normal language and 20 specifically language-impaired children (ages 4-5) indicated that a "qualitative-differences" model of specific language impairment better accounts for the co-occurrence of poor verbal and poor nonverbal cognitive skills in subjects than a "low-normal"…

Comparison of social initiations by 18 children with autism and 13 verbally matched children with mental retardation found autistic children's social initiations were more ritualized and the retarded children's were more playful. Autistic initiation to peers was unrelated to severity of autism, but was related to cognitive skills, whereas retarded…

Data from the Japanese standardization of the Wechsler Preschool and Primary Scale for Intelligence were used to analyze the structure of abilities of Japanese children in terms of the Burt-Vernon hierarchical model of intelligence. It was suggested that the pattern of cognitive strengths and weaknesses that emerged would help clarify a number of…

Reports the results of cognitive test performance and early childhood activities in individuals with congenital adrenal hyperplasia, an autosomal recessive disorder associated with elevated prenatal adrenal androgen levels, demonstrating the effects of early exposure to excess androgenizing hormones on sexually dimorphic cognitive functioning.…

The Cognitive Levels Test, for use with ages 5-21, is designed as a quick cognitive assessment instrument with 4 subdomains: verbal reasoning, abstract reasoning, quantitative reasoning, and memory. This paper describes the test's administration, summation of data, standardization, reliability, and validity. (JDD)

The study evaluated prediction of language quality using 3 approaches (neurodevelopmental, cognitive, and combination) with 37 developmentally delayed children (ages 5-9). Results indicated that these children had language and speech delays that showed substantial relationships to their verbal cognitive abilities and fine motor skills, in addition…

Comparisons were made in the conversations of 16 low income children in a preschool intervention program, a group of low income children not in the program, and a group of middle income children. Adults' conversational turns included three types of cognitively complex initiations. Results demonstrated a facilitating effect of day care…

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.…

Comparison of eight-year-old children with attention deficit hyperactivity disorder (ADHD) (n=21), learning disorder (LD) (n=12), or both (n=27) on neuropsychological measures found that ADHD children were impaired in control and inhibition of impulses; children with LD in phonological awareness, verbal memory span, storytelling, and verbal IQ;…

This study compared achievement of students learning programing in pairs and individually and examined relationships between cognitive abilities, style, and demographics. No differences were found in programing outcomes, but mathematics and verbal ability best predicted individual setting outcomes, while nonverbal reasoning, spatial ability, and…

Assesses 180 college students at three ages (17-23, 37-43, and 61-80) to examine the relative availability of Piagetian formal reasoning concepts; the relationship of these formal reasoning performances to Horn and Cattell's psychometric theory of general fluid and crystallized intelligence; and developmental patterns among standardized…