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The DSM-III criteria for posttraumatic stress disorder (PTSD) were operationally defined for use in a structured interview. Acceptable interrater and test-retest reliabilities were shown; diagnostic validity was demonstrated relative to a standard diagnostic interview procedure; construct validity was shown in relation to a PTSD self-rating scale and to degree of combat exposure; the structured interview score correlated significantly with observer symptom scales for depression and anxiety.
Davidson et al. (Thu,) studied this question.