A cognitive psychologist conducted an investigation into the relationship between daily caffeine intake and memory performance. Representative data for nine participants are presented in Table 1 below.
| Participant | Caffeine intake (mg) | Words recalled (out of 15) |
|---|---|---|
| P | 150 | 12 |
| Q | 50 | 9 |
| R | 100 | 11 |
| S | 200 | 12 |
| T | 0 | 8 |
| U | 250 | 14 |
| V | 180 | 12 |
| W | 80 | 10 |
| X | 120 | 11 |
Calculate the mode for the number of words recalled.
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.