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WAIS‐R short‐forms: Criterion validity in healthy and clinical samples
Author(s) -
Crawford J. R.,
Mychalkiw B.,
Johnson D. A.,
Moore J. W.
Publication year - 1996
Publication title -
british journal of clinical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.479
H-Index - 92
eISSN - 2044-8260
pISSN - 0144-6657
DOI - 10.1111/j.2044-8260.1996.tb01221.x
Subject(s) - psychology , short forms , psychometrics , test validity , wechsler adult intelligence scale , validation test , criterion validity , developmental psychology , statistics , clinical psychology , construct validity , psychiatry , mathematics , cognition
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.