Correcting for cultural factors in evaluating intellectual deficit on the WAIS

Obtained estimates of the effects of ethnic group, sex, education, and clinical diagnosis on WAIS IQ scores of 776 psychiatric patients by least squares regression methods. Estimates of expected IQ for various demographically defined segments of the general population were obtained by setting the expected IQ for white high school graduates at 101 and then adding or subtracting the specific effects associated with different ethnic group, sex, and education. A formula for norming WAIS Full Scale IQ scores to X = 100 and SD = 15 within various demographically defined segments of the population is proposed.