Chloe and Daniel are analysing data they have gathered about students' self-reported hours of sleep and their scores on a memory recall test.
Table 3 shows the raw data from Chloe and Daniel's study.
| Hours of sleep | Memory recall score |
|---|---|
| 8.0 | 45 |
| 7.0 | 38 |
| 5.0 | 25 |
| 4.0 | 18 |
| 9.0 | 48 |
| 8.5 | 44 |
| 6.0 | 30 |
| 6.5 | 32 |
| 5.5 | 28 |
| 7.5 | 40 |
Table 3
Chloe and Daniel used Spearman's rho to analyse their data.
State two reasons why they used Spearman's rho.
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.