Online test: Depression

Questionnaire on the severity of symptoms of depression

Note:
The questions correspond to the Patient Health Questionnaire according to DSM-IV in the German version. Source:

Kroenke, K., Spitzer, R. L., & Williams, J. B. (2001). The PHQ-9: Validity of a brief depression severity measure. Journal of General Internal Medicine, 16(9), 606–613.

 English translation: Kerstin Gräfe, Stephan Zipfel, Wolfgang Herzog, Bernd Löwe

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