Sex, race, residence, region, and education differences on the 11 WAIS-R subtests.

The relationship of test performance on the 11 WAIS-R subtests to five background variables was examined by MANOVAs and univariate ANOVAs on standardization data. For all four broad age groups (16-19, 20-34, 35-54, 55-74), significant differences were found for sex, race, and education main effects. Geographic region produced significant main effects for three of the age groups, but residence yielded significant results only for the oldest group. The pattern of the relationships of subtest scores to each background variable was analyzed, interpreted, and integrated with previous research.