Mood & Depression · 3 min · 13 questions
MDQ: Mood Disorder Questionnaire
Thirteen yes/no questions about lifetime periods of elevated mood or energy. About 3 minutes.
Medical disclaimer: this is a validated screening questionnaire, not a diagnostic test. Only a qualified health professional can diagnose a condition. Your answers are processed in your browser and are never sent or stored.
Has there ever been a period of time when you were not your usual self and…
MDQ result
Answer all 13 questions for a complete result. Current partial score shown.
Your responses make a bipolar spectrum disorder unlikely, though this screener cannot rule it out.
Recommended next steps
- If mood swings concern you, discuss them with a doctor.
- Depression screeners (PHQ-9) may be more relevant if low mood is the main issue.
Answer the remaining questions to enable the report:
- MDQ:
Screening result only, not a diagnosis. Share it with a doctor or therapist.
MDQ scoring guide
| Score | Interpretation | Suggested action |
|---|---|---|
| 0–6 | Negative screen | If mood swings concern you, discuss them with a doctor. |
| 7–13 | Positive screen | Arrange an evaluation with a psychiatrist or doctor experienced in mood disorders. |
Clinical background
What it measures
The MDQ screens for a lifetime history of manic or hypomanic symptoms. The full questionnaire also asks whether symptoms occurred during the same period and how much impairment they caused — this online version scores the 13 symptom items.
How it is scored
A positive screen requires 7 or more 'yes' answers, symptoms clustering in the same period, and moderate or serious functional impairment (Hirschfeld et al., 2000). Sensitivity is about 73% and specificity 90% in psychiatric outpatients.
Reference: Hirschfeld RMA, Williams JBW, Spitzer RL, et al. Development and validation of a screening instrument for bipolar spectrum disorder: the Mood Disorder Questionnaire. Am J Psychiatry. 2000;157(11):1873–1875.