Zung Self-Rating Depression Scale.

SDS / Zung SDS

What it measures

Severity of depression across affective, psychological and somatic symptom items; one of the earliest self-report depression scales

Length and format

20 items. 4-point frequency (1-4); 10 items reverse-keyed; raw 20-80 converted to an SDS index (raw/80 x100) (self-report questionnaire)

Language versions

30+ languages incl. ES, ZH, JA, IT, DE, FR, AR, EL; very broadly translated historically

Normative data

No normative data held in our reference library for this instrument. That is a statement about our library, not about the published literature.

Licence

public-domain / open

Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.

Reference

Zung, W. W. K. (1965). A self-rating depression scale. Archives of General Psychiatry, 12(1), 63-70.