Dr. Sarah was conducting research into student well-being. She asked seven university students to rate their daily anxiety levels on a scale of 1–10 and also log their average daily screen time (in hours).
Complete the table and calculate Spearman’s rank correlation coefficient (rsr_srs) between self-rated anxiety and daily screen time. Show your working and give your final answer to two decimal places.
| Self-rated anxiety | Rank 1 | Daily screen time (hours) | Rank 2 | ddd | d2d^2d2 |
|---|---|---|---|---|---|
| 3 | 6.5 | 2 | 7 | ||
| 3 | 6.5 | 4 | 5 | ||
| 5 | 5 | 3 | 6 | ||
| 6 | 4 | 5 | 4 | ||
| 8 | 3 | 7 | 3 | ||
| 9 | 1.5 | 8 | 2 | ||
| 9 | 1.5 | 9 | 1 | ||
| Total: |
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.