Zung Self-Rating Depression Scale

The Zung Self-Rating Depression Scale was designed by Duke University psychiatrist William W.K. Zung MD (1929–1992) to assess the level of depression for patients diagnosed with depressive disorder.


 * 20–44 Normal Range
 * 45–59 Mildly Depressed
 * 60–69 Moderately Depressed
 * 70 and above Severely Depressed

The Zung Self-Rating Depression Scale has been translated into many languages, including Arabic, Azerbaijani, Dutch, German, Portuguese, and Spanish.