Assessment Patient Health Questionnaire (PHQ-9) ~5 Minutes to Administer No Training to Administer Free / No Cost External Assessment Practice Settings Mental Health Outpatient Clinics Focus Areas Chronic Pain Depression & Mood Disorders Maternal Health Stroke Practice Populations Adults Geriatrics What It Measures Objectifies degree of depression severity. Disclaimer We do our best to keep the Assessment details up-to-date, but please verify all information before deciding to use an assessment. If you find any information that needs to be updated, please contact us.