The generalizability of verbal IQ as an estimate of full scale IQ on the Wechsler Adult Intelligence Scale

To assess the validity of the Verbal IQ as a short form for the WAIS, 231 high-IQ outpatient test protocols were analyzed. Correlations between Verbal and Full Scale IQ were positive and significant for both males and females. The average Verbal IQ exceeded the average Full Scale IQ for both sexes as well, but these differences were small. A high percentage of Full Scale IQ classifications were changed when Verbal IQ was used. Thus, Verbal IQ appears partially valid as a WAIS short form for this higher IQ outpatient population. Results are interpreted in terms of Resnick and Entin's short form validity criteria.