Standardized Ability Testing for Vocational Rehabilitation in Visually Impaired Adults: A Literature Review

Abstract

This article reviews the past research on ability testing for adults who are visually impaired. The verbal scales of the Wechsler Adult Intelligence Scale-Revised were found to be widely accepted as measures of verbal ability with these clients. However, relying solely on verbal assessment has its limitations, both theoretically and practically. Many attempts have been made to develop and adapt nonverbal tests for visually impaired adults. To date, none of the tests reviewed are established as reliable and valid, indicating an ongoing need for further research.