Chloe conducted a study to investigate the relationship between daily caffeine intake (measured in milligrams) and self-reported anxiety level (on a scale of 1 to 10). She analyzed her data (N=8N = 8N=8) using a Spearman's rank correlation test and calculated a correlation coefficient (rsr_srs) of 0.751.
Table 1: Critical values of Spearman's rank correlation coefficient (rsr_srs)
| NNN | p≤0.05p \le 0.05p≤0.05 (two-tailed) | p≤0.01p \le 0.01p≤0.01 (two-tailed) |
|---|---|---|
| 7 | 0.786 | 0.929 |
| 8 | 0.738 | 0.881 |
| 9 | 0.683 | 0.833 |
| 10 | 0.648 | 0.794 |
Using the information above, determine whether Chloe's data are significant at p≤0.05 p \le 0.05\,p≤0.05 for a non-directional (two-tailed) hypothesis. Justify your answer.
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.