Validation of the Hong Kong version of the Comprehensive Aphasia Test

Abstract

This presentation summarizes a validation study of the Cantonese version of the Comprehensive Aphasia Test (Cant-CAT). Normative data were established and the psychometric properties of Cant-CAT were investigated. Specifically, 72 healthy individuals and 32 chronic stroke survivors completed Cant-CAT. Cut-off scores of subtests were determined at the lowest fifth percentile of normal performance. Influence of sociodemographic variables (age, education, and gender) on test performance was found. Moreover, Cant-CAT could discriminate the performance of PWA from controls and indicate aphasia severity. Good content validity, concurrent validity, inter- and intra-rater reliability, as well as fair-to-good test-retest reliability, were observed. Further expansion of this study involving a larger and more diverse group of PWA is in progress.