The researcher used a questionnaire to assess the stress scores of the employees.

| Group | Pre-intervention stress score | Post-intervention stress score |
|---|---|---|
| Group 1 (Mindfulness Training) | 65 | 45 |
| Group 2 (Cognitive Coaching) | 60 | 35 |
Briefly discuss one strength of using questionnaires in this research.
Practise AQA A Level Psychology Self-report techniques with exam-style questions for A Level Psychology. 40 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.