Factor structure of the WISC-R for a clinic-referred population and specific subgroups

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Abstract

Compared the factor structure of the WISC-R for a clinic-referred population of 594 2nd-6th graders and specific subgroups (emotionally handicapped, learning disabled and slow learner combined, and no significant problem) with that obtained by A. S. Kaufman on the WISC-R (1975) standardization sample. Similar factor-analytic procedures were used, and 3 factors were extracted from each group. The 1st 2 factors, Verbal Comprehension and Perceptual Organization, which were identified on the standardization sample, were consistently in evidence. However, Factor 3 was much less stable, and the conclusion was drawn that there may be some genuine differences between normal and clinical populations on that factor. (3 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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