Dysfunctional Attitude Scale (DAS). Psychometrics and Norms of the Swedish Version

Abstract

The Swedish version of the Dysfunctional Attitude Scale (DAS) was examined for reliability, validity and other psychometric characteristics, including non-clinical norms. Parallelism between the DAS-A and DAS-B versions, reliability, test-retest stability and validity of the DAS-A as a measure of depressive cognitive content were supported in lithium-treated euthymic patients with unipolar depressive disorder and healthy controls. Other psychometric properties of the DAS-A were investigated in a randomly selected normal sample (n = 498) of the population between 20 and 70 years of age in a Swedish county. The results were similar to those of earlier normative studies of the scale. A cumulative percentage normative scale of the DAS-A scores is presented.

Key Words:

• major depression
• cognitions
• lithium
• depression-emotion
• adult attitudes
• psychometry
• test validity
• test reliability
• rating scales
• test norms.