# 3. Early detection › 3.6 Mental health and validated questi… (1)

Checks 1 to 4 of 6, each with its evidence

## What you can do here

- **Verify 1: PHQ-9 (Patient Health Questionnaire, 9 item…**: Verify: PHQ-9 (Patient Health Questionnaire, 9 items, depression) | 0–27. Ban…
- **Verify 2: GAD-7 (Generalised Anxiety Disorder, 7 item…**: Verify: GAD-7 (Generalised Anxiety Disorder, 7 items) | 0–21. Bands: 0–4 mini…
- **Verify 3: Original GAD-7 paper | Spitzer, Kroenke, Wi…**: Verify: Original GAD-7 paper | Spitzer, Kroenke, Williams and Löwe, Archives…
- **Verify 4: ONS4 (social prescribing outcome measure) |…**: Verify: ONS4 (social prescribing outcome measure) | Four Office for National…
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- **Open Meet the research: 3.6 Mental health and**