CONSTRUCT-VALIDITY OF THE COMPUTERIZED VERSION OF THE CATEGORY TEST

The purpose of the current study was to investigate the construct vali dity of the computer version of the Category Test (CT) in relation to the standard version. As part of a comprehensive neuropsychological as sessment. outpatient rehabilitation clients completed either the stand ard CT (n = 49) or the computerized version (n = 56). Two principal co mponent factor analyses were performed and the factor structures compa red to a solution reported previously in the literature. Inspection of the factor loadings revealed a similarity between the computerized CT and standard CT groups as well as with the previously reported analys is. The results of this study suggest that: regardless of the mode of administration the CT loads on a ''spatial abilities'' factor and prov ides support for the construct validity of the computerized CT as part of a comprehensive neuropsychological testing battery. (C) 1997 John Wiley & Sons, Inc.