Supplementary WAIS-III Tables for Determining Subtest Strengths and Weaknesses

Abstract

Analysis of relative subtest strengths and weaknesses is a familiar procedure used in the interpretation of Wechsler Scale data. The WAIS-II test manual provides some tables to facilitate this process but does not include a table for subtest analysis when six Performance Scale subtests are administered. Six Performance Scale subtests must be administered if examiners are to obtain both the Performance IQ and the Processing Speed index score. In addition, the WAIS-I1I manual does not include tables for use when certain optional subtests are substituted for subtests that are spoiled during test administration. Three tables are provided in this article for such circumstances. They may be used for determining both the significance and infrequency of differences between individual subtest scaled scores and the mean Verbal or Performance subtest score.

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