A validational study of the WIST as a group-administered instrument for assessment of schizophrenic thinking

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Abstract
The objective assessment of thought disorder in schizophrenia is problem matic in clinical psychology. Recently and individually administered instrument (WIST) was introduced as a brief, objective, and quantitative measure of schizophrenic thought processes. Possible shortcomings of the WIST are noted; experimental findings that concern extension to group testing conditions, convergent validity with another self-report measure of schizophrenia, and discriminant validity from intellectual level are presented.