COMPARISON OF IQS AND VERBAL-PERFORMANCE IQ DISCREPANCIES ESTIMATED FROM 2 7-SUBTEST SHORT FORMS OF THE WAIS-R

The present study compared IQs and Verbal-Performance IQ discrepancies estimated from two seven-subtest short forms of the Wechsler Adult In telligence Scale-Revised (WAIS-R) in a sample of 100 subjects referred for neuropsychological assessment. The short forms of Warrington, Jam es, and Maciejewski (1986) and Ward (1990) yielded similar correlation coefficients and absolute error rates with respect to WAIS-R IQs, alt hough the Warrington short form requires more time to administer and s core. Both short forms were able to detect significant Verbal-Performa nce IQ discrepancies 70% of the time. However, they incorrectly yielde d significant discrepancies for approximately 25% of the sample who di d not have significant differences on the full WAIS-R. The results do not support reporting and interpreting significant Verbal-Performance IQ discrepancies estimated from these short forms.