A psychologist wanted to investigate whether background environment affects concentration. To do this, she conducted an experiment where one group of participants completed a proofreading task while listening to background café chatter. A different group of participants completed the same proofreading task in complete silence. After completing the task, participants were asked to rate their self-reported level of concentration on a scale of 1 (extremely distracted) to 10 (highly focused).
| Concentration Ratings (1–10) | |
|---|---|
| Café Chatter Group | Silence Group |
| 5 | 8 |
| 7 | 9 |
| 3 | 7 |
| 6 | 10 |
| 8 | 6 |
| 4 | 8 |
| 5 | 9 |
| 2 | 8 |
| 6 | 7 |
| 3 | 9 |
Name the appropriate inferential statistical test to analyse the data in this study. Give reasons for your answer.
644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.