Zung Self-Rating Depression Scale
The Zung Self-Rating Depression Scale is a short self-administered survey to quantify the depressed status of a patient. There are 20 items on the scale that rate the four common characteristics of depression: the pervasive effect, the physiological equivalents, other disturbances, and psychomotor activities.
The scores provide indicative ranges for depression severity that can be useful for clinical and research purposes, but the Zung scale cannot take the place of a comprehensive clinical interview for confirming a diagnosis of depression. The Zung scale also provides a simple tool for monitoring changes in depression severity over time in research studies.
Please read each statement and decide how much of the time the statement describes how you have been feeling during the past several days.