A researcher investigated the effect of environmental noise on cognitive performance. Ten participants completed a spatial reasoning task under two conditions: a High Noise condition and a Low Noise condition. The time taken (in seconds) to complete the task by each participant in both conditions is shown in Table 1.
Calculate the mean completion time for the High Noise condition and the Low Noise condition, and complete Table 1 with your answers.
You must give your answers to one decimal place.
Table 1
| Participant | Time taken (seconds) in High Noise condition | Time taken (seconds) in Low Noise condition |
|---|---|---|
| 1 | 45 | 32 |
| 2 | 52 | 28 |
| 3 | 38 | 35 |
| 4 | 47 | 30 |
| 5 | 50 | 33 |
| 6 | 41 | 29 |
| 7 | 49 | 36 |
| 8 | 36 | 27 |
| 9 | 55 | 31 |
| 10 | 43 | 34 |
| Mean |
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.