The 21-item and 12-item versions of the Depression Anxiety Stress Scales: Psychometric evaluation in a Korean population

ConclusionsThe Depression Anxiety Stress Scales 21 and 12 appear to be acceptable, reliable and valid instruments. However, the shorter Depression Anxiety Stress Scales 12 may be more feasible to use in a busy practice and also be less burdensome to respondents.
Source: Asian Nursing Research - Category: Nursing Source Type: research