Comparison of a self-rating questionnaire with a diagnostic checklist for the assessment of DSM-III-R personality disorders.

Two instruments for the assessment of the DSM-III-R personality disorders were compared: The Personality Disorders Questionnaire--Revised (PDQ-R) and the Munich Diagnostic Checklist for the assessment of DSM-III-R Personality Disorders (MDCL-P). Using kappa value as a measure of agreement, the diagnostic agreement was less than 0.40 for personality disorder vs. no personality disorder as well as for the specific personality disorders. The PDQ-R diagnosed more frequently personality disorders (58%) than did the MDCL-P (43%).