Reliability and validity of the Japanese version of the 24-item Dysfunctional Attitude Scale.

Background: The 24-item Dysfunctional Attitude Scale (DAS-24) is a short version of the Dysfunctional Attitude Scale, which is a self-report inventory for depressogenic schemata.

Objective: The object of this study was to examine the reliability and validity of the Japanese version of the DAS-24 (DAS-24-J).

Methods: Subjects consisted of non-clinical sample 1 (248 university students), non-clinical sample 2 (872 Japanese company employees) and a clinical sample (59 depressed out-patients).