The Personality Diagnostic Questionnaire: Development and Preliminary Results

Abstract

The PDQ (Personality Diagnostic Questionnaire) is a self–report questionnaire derived from the personality disorders section of the original DSM–III. The authors report the results of a study to determine the extent to which a PDQ index of overall personality disturbance agrees with clinicians' assessments in 552 patients with and without personality disorder. The results showed that the PDQ–derived total PDQ score may be used to differentiate patients with a high likelihood for personality disturbance from those with a lower likelihood of personality disturbance.