WAIS-R short-forms: Criterion validity in healthy and clinical samples

Author(s): Mychalkiw, B., Johnson, D. A., Moore, J. W.

Journal/Book: Brit J Clin Psychol. 1996; 35: St Andrews House, 48, Princess Rd, East, Leicester, Leics, England LE1 7DR. British Psychological Soc. 638-640.

Abstract: Regression equations developed by Crawford, Allan & Jack (1992) to estimate full-length WAIS-R IQs from seven short-forms were evaluated in healthy (N = 153) and neurological (N = 471) cross-validation samples. In the healthy sample the correlations between the short-forms and full-length IQs did not differ significantly from those obtained by Crawford et al. (1992). In the neurological sample the six- and seven-subtest short-forms, proposed by Crawford et al. (1992) and Warrington, James & Maciejewski (1986) respectively, differed from the other short-forms in that they had significantly higher criterion validity coefficients and did not systematically under- or overestimate IQs.

Note: Article JR Crawford, Univ Aberdeen, Univ London Kings Coll, Dept Psychol, Aberdeen AB9 2UB, Scotland

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