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)

To investigate the speech of black college students for nonfluencies--linguistic elements breaking the flow of words or ideas--and to ascertain if students' attendance of a largely black or largely white university influenced their use of nonfluencies, 21 black students at a predominantly black university and 25 black students at a predominantly…

Twelve learning-disabled children, aged 8-11, were compared with normal peers on various discourse errors. No significant quantitative differences were found in the total number of discourse errors between the disabled and normal groups, but the errors were qualitatively different. Male subjects made significantly more errors than female subjects.…

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…

Results question the validity of Cummins's threshold hypothesis and suggest that degree of bilingualism is related to variability in cognitive measures only before a certain threshold of proficiency in the second language is attained. A cause-effect model in which degree of bilingualism appears as the causal factor affecting children's cognitive…

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…

This paper examined test scores and information about test takers collected from the Graduate Record Examination (GRE) national test administration files, GRE validity study data provided by institutional users, and survey questionnaires sent to test repeaters. Data were collected from 200,000 men and women who took the GRE General Test in June…

Discourse can be organized in many different ways, two of these being comparison and a collection of descriptions. These two discourse types correspond to schemata that vary in their organizational components, and these differences can be expected to produce differences in the processing of text. For example, research has shown that for young…

This paper addresses the problem of heterogeneity of samples of learning disabled (LD) children by comparing five different systems for identifying homogeneous subgroups in terms of their ability to predict longitudinal reading and mathematics scores. One hundred and sixty LD children served as subjects. Three of the five subgrouping systems were…