open access
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open access
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E-ISSN : 2733-4538
The purpose of this study was identify cognitive characteristics of traumatic brain injured group(n=20) and schizophrenic group(n=20) in the Wisconsin Card Sorting Test(WCST). Their performances of the WCST were compared with normal control group(n=20). Administered WCST was revised and expanded in 16 subcategories by Heaton et al. (1993). The results of the study were as follows. First, there were significant differences between traumatic brain injured group and normal control group in performances of percent errors, percent perseverative errors, percent conceptual level responses, number of categories completed, and learning to learn. Second, there were significant differences between schizophrenic group and normal control group in performances of percent errors, percent perseverative errors, percent nonperseverative errors, percent conceptual level responses, and number of categories completed. Third, there were significant differences between traumatic brain injured group and schizophrenic group in performances of percent nonperseverative errors, percent conceptual level responses, and learning to learn. Finally, meanings, limitations and suggestions of the present study were discussed.