I think it is pretty accurate, because all it does is ask you if you have the symptoms of depression, which are in the DSM IV, so yes it's accurate. If you have a bunch of the symptoms, or a few that are really severe, I'd say you have depression. Because those questions in the quiz are exactly what depression is. Fatigue, feeling sad, worthless, thoughts of suicide, changes in sleep and eating habits, etc. But no one can diagnose you except a doctor. But if you presented this to a doctor and got a lot of them, they will say you are depressed. Has it affected your school or work? Relationships? That's when it becomes a major problem that needs to be addressed.