WISC-R subtest variability in a clinic-referred sample of Canadian children.

WISC-R protocols and demographic data were obtained from the files of 200 clinic-referred Canadian children (aged 6 yrs to 15 yrs 11 mo). 72% of the sample were referred because of some form of learning problem, emotional disturbance, developmental delay/retardation, and/or behavior disorder. Comparisons were made with normal Canadian children (J. Wersh and J. Briere, see record 1982-05521-001) and the American WISC-R standardization sample (A. Kaufman, Vols 56:3214 and 57:7179). A 1-sample Hotelling T–2 test was employed to examine subtest variability with reference to scale grand means, and a series of MANOVAs examined the effects of Full Scale IQ, age, and sex, and their interactions. The Discrepancy Index, Range Index, and Deviation Index of subtests were also calculated. Overall, subtest variability comparisons with the American normative population and normal Canadian children revealed a few distinct differences in degree and pattern of scatter on selected indices. The relationship of these findings to the literature on WISC-R subtest variability is discussed. (French abstract) (41 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)