An index of premorbid intelligence

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Abstract

Attempted to develop a way of estimating Wechsler IQs from demographic measures. The 3 summary IQs of the 1955 WAIS standardization sample were regressed on age, sex, race, education, and occupation. The resulting R-2s were .53, .42, and .54 for the Verbal IQ, Performance IQ, and Full Scale IQ, respectively. The 3 regression equations provide actuarial indices of IQ that can be used as estimates of premorbid ability in neuropsychological assessment and research. (8 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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