IQ tests provide numerous scores, but valid interpretation of those scores is dependent on how precisely each score reflects its intended construct and whether it provides unique information independent of other constructs. Thus, IQ scores must be evaluated for their reliability and dimensionality to determine their psychometric utility. As a…

This study used simulation techniques to evaluate the technical adequacy of three methods for the identification of specific learning disabilities via patterns of strengths and weaknesses in cognitive processing. Latent and observed data were generated and the decision-making process of each method was applied to assess concordance in…

Concurrent and predictive validity estimates for scores on the Wechsler Intelligence Scale for Children-Revised and Estimated Learning Potential are presented for 396 children (grades one-eight) stratified by racial-ethnic groups (Anglo, Black, Mexican American) and social classes (middle and lower). (Author/PN)

Uses both exploratory (EFA) and confirmatory factor analyses (CFA) to examine the factor structure of the WISC-III among White and Black students from the WISC-III standardization sample and a sample of 348 Black students referred for psychological evaluation. Results of the EFA provided evidence of a large first principal factor as well as the…

Two groups (learning disabled and normal) of 15 children were administered the Luria-Nebraska Neuropsychological Battery-Children's Revision and the Wechsler Intelligence Scale for Children-Revised. Considering abnormal or borderline profiles as indicative of learning disability was 93.3 percent accurate in discriminating between groups.…

This article is a one-year review of available research and an appraisal of the Revised Peabody Picture Vocabulary Test (PPVT-R). This instrument consistently demonstrates adequate alternate form equivalence across samples and consistently evidences significantly lower standard scores than its earlier version and traditional cognitive tests…

The authors believe the McShane and Plas literature review (TM 508 781) did not critically examine the methodological or theoretical problems in the cited studies. This uncritical examination resulted in a profile of Native American performance which did not control for English language fluency or for normal versus handicapped Indian populations.…

The relative accuracy of teacher judgments of academic performance in classifying students as learning disabled (LD) or nonhandicapped (NH) was contrasted to standardized tests of intelligence and academic achievement. Results indicated that teacher judgments were as accurate in separating LD and NH groups as standardized tests of intelligence and…

Twenty-one studies that reported mean score differences between the Woodcock-Johnson Tests of Cognitive Ability (WJTCA) and the Wechsler Intelligence Scale for Children-Revised (WISC-R) Full Scale are summarized. The differences are found to be minimal and are attributed to data bias and WJTCA's higher correlation with achievement. (EGS)

This article describes efforts to examine the validity of a screening process that provides objective data for multidisciplinary team meetings where consideration is being given to teacher referral of a student for assessment and possible placement in special education. In this study, the accuracy with which this process, called Problem Validation…