Depression Self-Test: Zung Depression scale

depression level self test

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.

1.I feel downhearted and blue.
2.Morning is when I feel the best.
3.I have crying spells or feel like it.
4.I have trouble sleeping at night.
5.I eat as much as I used to.
6.I still enjoy sex/favourite foods.
7.I notice that I am losing weight.
8.I have trouble with constipation.
9.My heart beats faster than usual.
10.I get tired for no reason.
11.My mind is as clear as it used to be.
12.I find it easy to do the things I used to.
13.I am restless and can’t keep still.
14.I feel hopeful about the future.
15.I am more irritable than usual.
16.I find it easy to make decisions.
17.I feel that I am useful and needed.
18.My life is pretty full.
19.I feel that others would be better off if I were dead.
20.I still enjoy the things I used to do.

Hi, I'm Hanan Parvez (MBA, MA Psychology), founder and author of PsychMechanics. I've written 270+ articles about human behaviour on this blog with over 3 million views and 80k monthly visitors. My work has been featured on Forbes, Business Insider, Reader's Digest, and Entrepreneur.
Back To Top