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A comparison of the performance of cognitively disabled children on the WISC-R and WISC-III



A comparison of the performance of cognitively disabled children on the WISC-R and WISC-III



Journal of Clinical Psychology 51(1): 89-94



This study compared differences in performance on the WISC-III and on the WISC-R. Sixty-one students with learning impairments, due for reevaluation of their special education placement, were administered the WISC-III as part of a psychological assessment battery. Results indicate a mean difference between WISC-R and WISC-III FSIQ of 7.95 points, which is similar to WISC/WISC-R comparisons. Substantial differences that averaged 9.21 points were found between WISC-R and WISC-III PIQ means. These findings suggest that for a special education sample an average decrease of at least 8 points can be expected on the WISC-III Full Scale IQ. Caution should be exercised when one is considering changes in educational classification or interpreting qualitative differences in performance on WISC-III scores compared with WISC-R scores.

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Accession: 042052664

Download citation: RISBibTeXText

PMID: 7782480

DOI: 10.1002/1097-4679(199501)51:1<89::aid-jclp2270510114>3.0.co;2-l


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