PHQ-9: Patient Health Questionnaire-9
Depression Assessment
Take the PHQ-9 assessment. Most widely used 9-item depression screening tool worldwide. Free, evidence-based, DSM-aligned depression severity measure.
Frequently asked questions
Other depression assessments
These measure the same area. A shorter one is easier to repeat; a longer one gives a steadier estimate.
PHQ-2 · 2 questions A 2-item ultra-brief screening tool for depression. The PHQ-2 inquires about the frequency of depressed mood and anhedonia over the past two weeks.PHQ-8 · 8 questions An 8-item depression screening tool that excludes the suicidality question from PHQ-9.MADRS · 10 questions The Montgomery-Asberg Depression Rating Scale (MADRS) is a 10-item clinician-administered questionnaire designed to assess the severity of depressive episodes in patients with mood disorders. It focuses on psychological symptoms of depression and is particularly sensitive to treatment changes.GDS-15 · 15 questions A 15-item screening tool specifically designed to identify depression in older adults, using a simple yes/no format.QIDS-SR-16 · 16 questions A 16-item self-report measure of depressive symptom severity covering the nine DSM symptom domains over the past seven days. Total score ranges from 0 to 27.HAM-D · 17 questions The Hamilton Depression Rating Scale (HAM-D) is a clinician-administered assessment that evaluates the severity of depression. Originally developed with 17 items, it focuses on cognitive and physical symptoms of depression and is widely used in clinical practice and research.CESD-R · 20 questions A 20-item self-report measure designed to assess depressive symptoms in the general population, with items reflecting DSM-IV criteria for major depression.
Ready to get started?
Take the PHQ-9: Patient Health Questionnaire-9 and gain valuable insights into your mental health
Start assessment