Background: There is inadequate information regarding the factor structure of the Wechsler Intelligence Scale for Children -- Fifth UK Edition (WISC-V[superscript UK]; Wechsler, 2016a, Wechsler Intelligence Scale for Children-Fifth UK Edition, Harcourt Assessment, London, UK) to guide interpretation. Aims and methods: The WISC-V[superscript UK]…

This study further examined the Gifted Rating Scales (GRS) at the internal and external stages of test validation by (a) testing structural fidelity as indicated by the number of factors supported as well as the correspondence of the latent factor structure with the scoring model proposed by the authors and (b) examining the external relations of…

This study sought to validate the Short Grit Scale (Grit-S), an instrument that measures perseverance and passion for long-term goals, among Chinese high school students. Confirmatory factor analyses revealed that the scale retains the two-factor structure of the original scale. The scale demonstrated satisfactory internal consistency and…

Previous work has shown that malnutrition has deleterious effects on both IQ and aspects of temperament. It is hypothesized that while malnutrition bears a direct relation to IQ, aspects of temperament are also involved in a mediating role so that they produce indirect associations between malnutrition and IQ. The study examines the association of…

Sex differences on the Attention Test (AC), the Raven's Standard Progressive Matrices (SPM), and the Brazilian Cognitive Battery (BPR5), were investigated using four large samples (total N=6780), residing in the states of Minas Gerais and Sao Paulo. The majority of samples used, which were obtained from educational settings, could be considered a…

Irish educational psychologists frequently use the Wechsler Intelligence Scale for Children-Fourth U.K. Edition (WISC-IV[superscript UK]) in clinical assessments of children with learning difficulties. Unfortunately, reliability and validity studies of the WISC-IV[superscript UK] have not yet been reported. This study examined the construct…

Measurement invariance with respect to groups is an essential aspect of the fair use of scores of intelligence tests and other psychological measurements. It is widely believed that equal factor loadings are sufficient to establish measurement invariance in confirmatory factor analysis. Here, it is shown why establishing measurement invariance…

The incremental validity of factor scores from the Wechlser Intelligence Scale for Children-III (WISC-III) in predicting scores on the Wechsler Individual Achievement Test (WIAT) was studied in 283 nonreferred children and 636 referred for evaluation. The Full Scale IQ of the WISC-III was the best predictor of WIAT achievement. (SLD)

A frequent reason for teachers not making special provisions for a gifted child is that the child is "not fitting in socially." The conjecture that a psychological source of such negative affect has evolved along with human language was tested with a large sample (N = 377) of teachers in England, Scotland, and Australia who were…

The purpose of this study was to replicate previous factor analytical studies of the Wechsler Intelligence Scale for Children-Revised (WISC-R) employing children identified as gifted. However, rather than using the IQ criterion, a child's 11 WISC-R subtest scores were included in the analysis. Subsamples of gifted (as classified by local school…

Two studies involving 89 children were conducted to evaluate the validity of the Wechsler Intelligence Scale for Children-Third Edition (WISC-III) with African American students undergoing special education evaluations. Results were highly correlated with previously determined IQs, and the factor structure of the WISC-III was generally supported.…

Study looks at the problem of creativity test selection by examining the relationships between 15 divergent and non-divergent tests. (Authors)

The construct validity of a supplemental scoring system for the Kaufman Assessment Battery for Children (K-ABC) was evaluated with 146 referred school-age children (aged 6 to 12.5 years) and the K-ABC normative sample. Results support the construct validity of only part of the scoring model. (SLD)

In all 245 British adults provided self- and parental estimates on a normal IQ distribution scale of the 20 second-order abilities identified by Cattell [Cattell, R. (1971). "Abilities: Their structure, growth and action." New York: Houghton Mifflin] as well as their and their parents' overall (g) IQ. After controlling for age,…

This author reviews published data and presents new data relevant to the Spearman hypothesis concerning racial differences on cognitive tests. He concludes that across-the-board difference between SES groups occurs primarily on the general factor, and that there are major determinants of race differences independent of the general factor.…