As part of the Avon Longitudinal Study of Parents and Children (ALSPAC), measures of child IQ were collected by trained psychologists. The Wechsler Pre-school and Primary Scale of Intelligence - Revised UK edition (WPPSI) was used at age 4 years in a subsample of children enrolled in ALSPAC (the Children in Focus cohort), chosen at random from the last 6 months of ALSPAC births (about 10% of th...

The purpose of the study was to examine the concurrent validity of the Kaufman Assessment Battery for Children (K-ABC) by comparing K-ABC scores and Weschler Intelligence Scale for Children--Revised (WISC-R) scores for 58 school children in primary and intermediate grades. To determine if these scores were related and/or significantly different, t-tests, Pearson r correlations, a canonical corr...

This study examined correlations between WISC-R and K-ABC subtests in a sample of 101 children referred for learning disabilities. A considerable overlap between the two instruments was found. Separate factor analyses of the WISC-R and K-ABC were conducted. By and large, the WISC-R factor structure was similar to that found for standardization samples. Three factors emerged, namely Verbal Compr...

This study used structural equation modeling to examine the effect of Stratum III (i.e., general intelligence) and Stratum II (i.e., Comprehension-Knowledge, Fluid Reasoning, Short-Term Memory, Processing Speed, and Visual Processing) factors of the Cattell-Horn-Carroll (CHC) cognitive abilities, as operationalized by the Wechsler Intelligence Scale for Children, Fourth Edition (WISC-IV; Wechsl...

OBJECTIVE To determine the prevalence of subclinical deficits in cognitive and motor function in low birthweight infants. DESIGN Children of birth weight < or = 2000 g born to mothers resident in Merseyside in 1980-1 assessed using the Wechsler Intelligence Scale for Children (WISC), the Neale analysis of reading ability, and the Stott-Moyes-Henderson test of motor impairment (TOMI). Children...

BACKGROUND Previous reports from the Bucharest Early Intervention Project suggested that children removed from institutions and placed into intervention displayed gains in IQ relative to children randomized to remain in institutional care. METHOD The current report presents data from the 8-year follow-up of these children. One hundred and three of the original 136 children in the study were t...

Patterns of performance on the Wechsler Intelligence Scale for Children-Revised (WISC-R) have been proposed as useful tools for the identification of children with learning disabilities (LD). However, most of the studies of WISC-R patterns in children with LD have been plagued by the lack of a typically achieving comparison group, by failure to measure individual patterns, and by the lack of a ...

STUDY OBJECTIVES Functional interactions between sleep spindle activity, declarative memory consolidation, and general cognitive abilities in school-aged children. DESIGN Healthy, prepubertal children (n = 63; mean age 9.56 ± 0.76 y); ambulatory all-night polysomnography (2 nights); investigating the effect of prior learning (word pair association task; experimental night) versus nonlearning ...

Genetic and environmental correlations among 11 Wechsler Intelligence Scale for Children-Revised (WISC-R) subtests were estimated from a sample of 143 twin pairs using the methodology of multivariate behavioral genetics. The genetic correlations among subtests varied in magnitude and exhibited a pattern similar to corresponding phenotypic correlations. Correlations due to within-pair environmen...

PURPOSE The aim of this study is to compare the Wechsler Intelligence Scale for Children® - fourth edition IV (WISC IV) intellectual profile of two groups of children with specific learning disorder, a group of bilingual children and a group of monolingual Italian children, in order to identify possible significant differences between them. PATIENTS AND METHODS A group of 48 bilingual childre...