Determined if Wechsler Intelligence Scale for Children-Revised subtest patterns would differentiate the performance of emotionally disturbed and learning-disabled children. Subtests differentiated significantly between diagnostic categories. Learning-disabled children performed predictively poorer on block design, picture arrangement, and object…

Compared the WISC-R Verbal-Performance IQ discrepancies of learning-disabled children and of the normative sample. It was concluded that without clinical evidence to suggest otherwise, it cannot be assumed automatically that a child's discrepancy score, unless of extreme magnitude, is related to the learning disability itself. (Author)

Two studies (N=4,261 persons) illustrate an inverse relationship between ability level and correlations among IQ measures. Low IQ subjects showed higher correlations than did high IQ subjects. Intercorrelations of IQ subtests, intercorrelations of cognitive ability measures, and correlations of IQ with measures of cognitive ability displayed the…