Subjected the standardization data for the Wechsler Adult Intelligence Scale-Revised (WAIS-R) and the original Wechsler Adult Intelligence Scale (WAIS) to principal-factor analysis. A two-factor solution was adopted for each scale. The stability of the two factors, Verbal Comprehension and Perceptual Organization, was high both within and between…

Correlations with Binet IQ in the ITPA normative sample were corrected for restricted intelligence range. The corrected correlation for the Psycholinguistic Quotient is as high as that between the WISC and the Binet, a finding that raises a serious question about the construct validity of the ITPA. (Author)

Reappraises the validity and reliability of Vocabulary and Block Design (V-VD) as a short form of the Wechsler Adult Intelligence Scale (WAIS), the Wechsler Intelligence Scale for Children (WISC), and the Wechsler Preschool and Primary Scale of Intelligence (WPPI). Presents a table for converting the sum of scaled scores into an estimate of Full…

A refined and extended analysis of variance (ANOVA) approach was used to investigate the pattern of relationships among arithmetic ability; reading ability; and general ability as assessed by teacher ratings and standardized tests, over a three-year period, with 54 educable mentally retarded children, initially 12 years old. (Author)