Patient Health Questionnaire-4 (PHQ-4)
A 4-item ultra-brief screening tool for both anxiety and depression. Read more.
Over the last 2 weeks, how often have you been bothered by the following problems?
Free, no account needed. Your score appears when you finish.
0 of 4
Source: Kroenke K, Spitzer RL, Williams JB, Löwe B. An ultra-brief screening scale for anxiety and depression: the PHQ-4. Psychosomatics. 2009;50(6):613-621. If you hold the rights to a questionnaire on Survey Doctor, please contact us.