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Zungs Self Rating Depression Scale

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The Zung Depression Inventory or Depression Status Inventory was developed by Duke University psychiatrist William W.K. Zung as an adjunct to the Zung Self-Rating Depression Scale

He designed it to assess the level of depression for patients diagnosed with depressive disorder.[1]

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 rating affective, psychological and somatic symptoms associated with depression.[citation needed]

There are ten positively worded and ten negatively worded questions. Each question is scored on a scale of 1 through 4 (based on these replies: "a little of the time," "some of the time," "good part of the time," "most of the time").[citation needed]

Scores on the test range from 20 through 80. The scores fall into four ranges:[citation needed]

  • 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,[2] Azerbaijani,[3] Dutch, German, Portuguese,[4] and Spanish.[5]

See alsoEdit


  1. (1965). A self-rating depression scale. Archives of General Psychiatry 12: 63–70.
  2. (2005). Validation of an Arabic translation of the Zung Self-Rating Depression Scale. Annals of Saudi Medicine 25 (3): 205–8.
  3. Zanqın özünüqiymətləndirmə depressiya cədvəli
  4. (2010). Validity of a Brazilian version of the Zung self-rating depression scale for screening of depression in patients with Parkinson's disease☆. Parkinsonism & Related Disorders 16: 42–45.
  5. (2003). Applicability of the Spanish Translation of the Zung Self-Rating Depression Scale in a general Puerto Rican population. Puerto Rico health sciences journal 22 (2): 179–85.

Further readingEdit

  • Zung, W.W.K. (1972) The Depression Status Inventory: an adjunct to the self-rating depression scale. Journal of Clinical Psychology 28, 4, 539 ñ 543

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