WAIS-R short-forms: criterion validity in healthy and clinical samples.
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.
Crawford
J R
JR
Department of Psychology, King's College, University of Aberdeen, UK.
Mychalkiw
B
B
Johnson
D A
DA
Moore
J W
JW
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001927:Brain Diseases / Q000523:psychology*; D001930:Brain Injuries / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011594:Psychometrics / Q000379:methods*; D012044:Regression Analysis; D015203:Reproducibility of Results; D014888:Wechsler Scales