About.com: Online Depression Tests
Take a test to familiarize yourself with the symptoms of clinical depression and see whether you meet the diagnostic criteria. Also offers tests to measure anxiety or panic disorders and a depression facts quiz.
While moderate anxiety can be limiting, severe anxiety can be crippling. Offers a free online anxiety screening test (standardized with reliability and validity data posted on the site).
beyondblue: Checklists to Identify Depression and Anxiety
Includes a depression checklist, a brief test to measure psychological distress, and a checklist to help practitioners identify psychological or physical signs experienced by people with depression or anxiety.
Depression Inventory Test
Find out whether your slump is critical with this depression test. Examine the statements and indicate how often you identify with that feeling. When completed, you'll receive a score and a brief interpretation.
Offers a confidential depression screening test online. Provides information on symptoms, treatments, and how to find help. Sponsored by the National Mental Health Association.
Answer twelve questions that analyze your feelings over the past few days and learn where you fall on the depression bracket, from normal to severe depression.
Depression, Anxiety and Stress Test
Provides a combined test for depression, anxiety, and stress and articles on symptoms and treatment.
InteliHealth: Depression Self-Test
Depression assessment based on the Center for Epidemiologic Studies Depression Scale. Originally developed in the 1970s to detect major or clinical depression.
National Depression Screening Day
U.S. community-based mental health screening program, sponsored in part by an educational grant from various pharmaceutical companies.