In a follow-up study, a cognitive psychologist investigated memory recall. She recruited a sample of 10 university students. Using a repeated measures design, participants were asked to recall words from two different lists under different conditions.
Condition A consisted of recalling 20 high-arousal emotional words.
Condition B consisted of recalling 20 neutral words.
The tasks were counterbalanced and the number of words correctly recalled was recorded for each participant.
Table 2: Number of words correctly recalled in Condition A (emotional words) and Condition B (neutral words)
| Participant | Condition A (high-arousal) | Condition B (neutral) |
|---|---|---|
| 1 | 14 | 10 |
| 2 | 16 | 11 |
| 3 | 12 | 8 |
| 4 | 15 | 12 |
| 5 | 13 | 9 |
| 6 | 11 | 9 |
| 7 | 17 | 13 |
| 8 | 10 | 7 |
| 9 | 14 | 11 |
| 10 | 12 | 10 |
Explain one reason why the mean would be the most appropriate measure of central tendency to summarise the data in Table 2.
235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.