When it helps: When you want to put a number on how heavy things have been lately, or track whether something is shifting over weeks.
When it doesn't: It won't tell you why. A score describes two weeks; it doesn't explain them.
The PHQ-9 is the most widely used depression screening questionnaire in the world: nine questions about the last two weeks, each scored 0 to 3. Your answers stay on this page: nothing is sent, nothing is stored. When you finish, you get a score, what the score range usually means, and the option to download it or send it to me from your own email. The choice is entirely yours.
Nine questions, no trick ones. Answer for the last two weeks as they actually were, not as the better days felt.
Over the last 2 weeks, how often have you been bothered by any of the following problems?
9 items left to answer.
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