In a population-based sample of 112 nine-year old twin pairs, we investigated the association among total brain volume, gray matter and white matter volume, intelligence as assessed by the Raven IQ test, verbal comprehension, perceptual organization and perceptual speed as assessed by the Wechsler Intelligence Scale for Children-III. Phenotypic…

Background: Previous research with earlier versions of the WISC and WAIS has demonstrated that when administered to people who have intellectual disabilities, the WAIS produced higher IQ scores than the WISC. The aim of this study was to examine whether these differences still exist. A comparison of the Wechsler Adult Intelligence Scale-Third…

Children with mental retardation have pronounced difficulties in using cognitive strategies and comprehending abstract concepts--among them, the concept of sequential time (Van-Handel, Swaab, De-Vries, & Jongmans, 2007). The perception of sequential time is generally tested by using scenarios presenting a continuum of actions. The goal of this…

Six experiments were reported which examine the young child's ability to compare included and nonincluded sets. Subjects were children from nursery and primary schools in Edinburgh. (Author/MP)

Research findings concerned with the relationship between the child's oral language behavior and learning to read are described. A cognitive-biological approach to the child's perceptual system development is taken, and data are presented to support both the developmental point of view of language development and the point of view that the child…

Investigates the relationships between levels of cognitive complexity and three levels (graphic, formal, and inferred) of modeling complexity in community college students. (GA)

The idea of semantic features has taken some force within psychology and a number of research workers have suggested that semantic acquisition is, in some manner, determined by semantic components. This notion has come to be called the "semantic feature hypothesis". An examination of the semantic feature hypothesis was made by testing 80…

A series of three experiments was conducted for the purposes of (1) clarifying problems of previous research on the relationship between working memory capacity and performance on figural analogy tasks, and (2) exploring developmental issues concerning executive strategies, working memory capacity, and perceptual processing. Directly manipulating…

UNDER THE DIRECTION OF PROFESSOR BRUNER, THE CENTER FOR COGNITIVE STUDIES AT HARVARD UNIVERSITY HAS CARRIED OUT A SERIES OF STUDIES ON THE DEVELOPMENT OF COGNITION. THERE HAVE BEEN OVER 30 EXPERIMENTS ON THE GROWTH OF PERCEPTION, PROBLEM-SOLVING, AND REASONING BETWEEN THE AGES OF 3 AND 10, IN PURSUIT OF A THEORY TO ACCOUNT FOR THE CHANGES IN…

This study investigated the premise that disordered temporal order perception in retarded readers can be seen in the serial processing of both nonverbal auditory and visual information, and examined whether such information processing deficits relate to level of reading ability. The adult subjects included 20 in the dyslexic group, 12 in the…

This book is intended to provide specific instructional help for educators planning remediation of deficits identified by the Wechsler Intelligence Scale for Children III (WISC-III) and for educators writing individual educational plans. An introduction notes differences between the WISC-R and the WISC-III. The guide is arranged in four subtest…

The use of the Wechsler Intelligence Scale for Children, Third Edition (WISC-III) and its interpretation in educational use are discussed. To measure intelligence, Wechsler believed one must measure the various aptitudes that contribute to the total behavior of the individual. The WISC-III has six verbal subtests and seven performance subtests.…