Discusses the effects of schooling on the development of intelligence in children and how the amount of schooling should be considered when developing norms for turning intelligence test performance into IQ scores. Suggests that because of differences in schooling among same-age children, use of age-based norms results in biased deviation IQS.…

Results from a quasi-experimental research design used with 578 10-year-old children showed considerable effects of schooling on all intelligence tests given, including tests of fluid intelligence, and indicated that schooling effects explained most of the intellectual progress made in 1 year at that age. (SLD)

Applied factor analysis to the Wechsler Intelligence Scale for Children-Third Edition (WISC-III) scores for 505 gifted students, to evaluate the construct validity of the WISC-III with this population. Results are consistent with the hypothesis that subtests that emphasize speed of reading are not valid for gifted children and suggest that an…

A study compared results of a previous study that showed that the Test of Nonverbal Intelligence (TONI) holds promise for use with individuals with autism and the results of 39 Taiwanese students with autism. Similar results were found regarding mean TONI scores and the variables that best predicted TONI scores. (Author/CR)

Investigated the construct validity of the implied and theoretical structures of the Wechsler Adult Intelligence Scale-III (WAIS-III). Results using the standardization sample of 2,450 adults and adolescents indicate that the WAIS-III provides an excellent measure of the four-factor model and a general factor, but they do not support the construct…

In November 2002, the U.S. Department of Education's Office of Educational Research and Improvement (OERI) was dissolved. Out of the reorganization arose two new offices within the department, the Institute of Education Sciences and the Office of Innovation and Improvement, signaling the Bush administration's commitment to both scientifically…

Tables permitting the conversion of short-form composite scores to full-scale IQ estimates have been published for previous editions of the Wechsler Adult Intelligence Scale (WAIS). Equivalent tables are now needed for selected subtests of the WAIS-III. This article used Tellegen and Briggs's formulae to convert the sum of scaled scores for four…

The campaign against testing is a good place to reflect on the legacy of Brian Simon and to ask how far his politics and his professional life came together in what he himself called 'Education as a site of struggle'. History of education can be a critical discourse enabling reflection on the effects of policy and practice and the history of…

Social policy for people with intellectual disabilities (ID) continues to evolve, but little is known about the lives to which such policies are applied. We aimed to use a prospective follow-up of a British birth cohort to identify children with mild and more severe intellectual impairment, and compare a range of social outcomes in adulthood with…

As IQ scores rise, IQ tests are periodically renormed, making them harder. Because eligibility for mental retardation (MR) services relies heavily on IQ scores, renormed tests could significantly impact MR placements. In longitudinal IQ records from nine sites, students with borderline and mild MR lost 5.6 points on average when retested on…

Fluid/spatial intelligence, crystallized intelligence and their relationships to verbal and visuospatial working memory (WM) were studied. A total of 120 Finnish Air Force recruits participated in this study. Fluid/spatial intelligence was assessed using four different tasks, while crystallized intelligence was defined with the help of test scores…

Three studies, all on student populations, looked at the relationship between a recently psychometrised measure of General Knowledge [Irwing, P., Cammock, T., & Lynn, R. (2001). Some evidence for the existence of a general factor of semantic memory and its components. "Personality and Individual Differences," 30, 857-871], both long…

The fifth edition of the Stanford-Binet test went through significant reformulation of its item content, administration format, standardization procedures, and theoretical structure. Additionally, the test was revised to measure five factors important to intelligence across both verbal and nonverbal domains. To better understand these substantial…

The relationship between age and IQ was evaluated in a cross-sectional sample of 80 individuals with Williams syndrome (17 to 52 years). The relationship between age and WAIS-R subtest scores was such that increases and decreases in raw scores occurred at a rate sufficient to maintain stability of age-corrected scaled scores, indicating a…

The phase-synchronization of Gamma-band oscillations has been postulated as a mechanism of "network binding" and implicated in various aspects of perception, memory, and cognition. The current study investigates a possible link between Gamma synchrony and individual differences in intelligence within the theory of fluid and crystallized…