Two Types of Tables for Use with the Seven-Subtest Short Forms of the WAIS-III

Abstract

Now that the WAIS-R has been superseded by the WAIS-III, clinicians will incorporate the revision into their practices and, as in the past, administer the Ward (1990) seven-subtest short from to reduce administration time. Therefore, differences between Verbal and Performance IQ estimates required at the 95% and 99% levels of significance are reported for the Ward seven-subtest short form and a new seven-subtest short form that substitutes Matrix Reasoning for Block Design. Also provided are precision ranges for the estimated Verbal, Performance, and Full Scale IQs from the two short forms at the 85%, 90%, 95%, and 99% levels of confidence. IQ differences and precision ranges are given for each of the 13 age groups and the average across age groups in the standardization sample.