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A recent review (Matarazzo, Carmody, & Jacobs, 1980) has focused attention on the issue of WAIS practice effects in clinical practice. Available literature suggests that WAIS practice effects in may samples of patients with neuropsychological dysfunction are minimal. Data relevant to this hypothesis are reviewed. Practical guidelines for the interpretation of test-retest changes on the WAIS in neuropsychological assessment are proposed, and the importance of considering the impact of WAIS practice effects in neuropsychological research is addressed.
Mark W. Shatz (Wed,) studied this question.