What are some key differences between the BDI-2 and BDI-3?

🧩 Overview

While the BDI-2 and BDI-3 may appear similar, several major updates in the BDI-3 make direct comparisons between the two versions inappropriate. Key changes improve scoring accuracy, content relevance, and assessment structure.

🔧 Key Differences

1. Demographic Updates – Normative samples have been revised to better reflect today’s populations.

2. Repositioned Test Items – Items are ordered differently for better developmental alignment.

3. Updated Test Content – BDI-3 includes new items and revisions to existing ones.

4. Revised Scoring Criteria – Scoring has been fine-tuned for clarity and reliability.

5. New Derived Scores – Scoring outputs and interpretations have changed significantly.

📝 Additional Notes

• Comparing results between BDI-2 and BDI-3 is not recommended due to these structural changes.

• For a deeper breakdown, see the article:
  BDI-2 vs BDI-3: It’s No 'Apples to Apples' in the Assessment World