Beck Depression Inventory-II (BDI-II)
Based on Beck, Steer & Brown (1996) — 21-item depression severity assessment
The Beck Depression Inventory-II (BDI-II) is the most widely used self-report measure of depression severity worldwide. 21 items covering affective, cognitive, and somatic symptoms, with excellent reliability (α = 0.92). Note: This is a screening tool, not a diagnostic instrument.
What Is the Beck Depression Inventory?
The Beck Depression Inventory-II (BDI-II), developed by Aaron T. Beck et al. in 1996, is the most widely used self-report measure of depression severity worldwide. Based on Beck's cognitive theory of depression, it assesses depressive symptoms over the past two weeks.
The BDI-II contains 21 items with 0-3 severity ratings, covering affective, cognitive, and somatic symptoms. Total score ranges from 0-63.
Scoring Guide
Total score 0-63: 0-13=Minimal, 14-19=Mild, 20-28=Moderate, 29-63=Severe. Two subscales: Affective-Cognitive (14 items, 0-42) and Somatic-Vegetative (7 items, 0-21). Contains suicide ideation item (#9). If any concerns, contact a mental health professional.
Result Interpretation
After completing the 21 questions, you'll receive an immediate, detailed report with:
- Your score — calculated automatically based on your responses
- Score interpretation — what your score means in practical terms
- Context — how your results compare to general population norms where available
All results are displayed instantly on screen. No account, email, or login required.