The purpose of this paper was to evaluate the comparative validity of the Information and Vocabulary subtests of the Wechsler Adult Intelligence Scale (WAIS), the WAIS Verbal and Full Scale Intelligence Quotients, the verbal scores of several standardized scholastic aptitude tests, and their corresponding composite scores relative to a college…

Demonstrated that equally weighting Wechsler Adult Intelligence Scale subtests that differ in validity reduces potential validity. Concluded that vocabulary and information in concert have greater validity than either subtest by itself and that the addition of a third test will not result in a consistent increase in validity. (LLL)

Analyzed published data on the Wechsler Adult Intelligence Scale (WAIS) to ascertain whether the Information and Vocabulary subtests can function as measures of intelligence. Concluded that the addition of more WAIS subtests will not result in any increase in predictive validity and these additional tests, therefore, lack incremental validity.…

Age-scaled information and vocabulary scores of the Wechsler Adult Intelligence Scale and self-ratings of intelligence on a six-point scale were correlated for 190 predominately Caucasian undergraduates. Coefficients of the expected magnitude confirmed validity of the subtests as measures of self-rated intelligence. (Author/CM)