A comparison of the factor structure of the WISC and WISC-R in normal and exceptional groups

Compared the factor structure of the WISC and WISC-R obtained in samples of children (N = 187) with various neuropsychological diagnoses with that obtained in Kaufman's study of the WISC-R standardization group. The relationships between WISC and WISC-R records scored in a manner consistent with the obtained factor structure, and the interdisciplinary diagnoses assigned children in both groups also were studied. It was found that the WISC and WISC-R factor structure obtained in both the samples including exceptional children was essentially comparable to that reported by Kaufman. Relationships between WISC and WISC-R factor scores and interdisciplinary diagnoses assigned children in both samples were weak, but generally consistent with expectations.