The Zung Self-Rating Depression Scale (SDS) is a depression self-test that tests your current depression level. It was originally developed by W.W. Zung to test the level of depression in patients diagnosed with depression.
This depression test measures the various psychological as well as somatic symptoms associated with depression. It measures the four common characteristics of depression- the pervasive effect, physiological equivalents, psychomotor activities and other disturbances.
Taking the depression self-test
The test consists of 20 items on a 4-point scale ranging from ‘A little of the time’ to ‘Most of the time’. Based on your score, you’ll be classified into the different depression ranges– Normal range, Mildly depressed, Moderately depressed or Severely depressed. While answering the items, think about what describes you most accurately for the past several days.
You will obtain the test results immediately after you finish the questionnaire and hit the ‘Submit’ button. Your personal information will not be collected and your test results will not be shared with anyone. The test takes around 5-10 minutes to complete.
Zung, W. W. (1965). A self-rating depression scale. Archives of general psychiatry, 12(1), 63-70.