Depression Test

The PHQ-9 serves various purposes such as identifying, diagnosing, tracking and evaluating the intensity of depression.

It combines DSM-IV criteria for depression diagnosis with other significant symptoms of major depression in a concise self-assessment questionnaire. The tool assesses the frequency of the symptoms to determine the severity index score.

The PHQ-9 is a concise and valuable tool for clinical settings. Patients can finish the assessment quickly, and clinicians can score it promptly. Additionally, the PHQ-9 can be given multiple times to gauge changes in depression symptoms due to treatment [Kroenke, Spitzer, Williams, 2001].

It should be remembered that this questionnaire is an auxiliary tool for a professional doctor, and does not make an accurate diagnosis. Seek qualified medical assistance from specialists.