Complete Table 1 and find the observed value of T T\,T by calculating the Wilcoxon Signed Ranks test for Dr. Bennett's study on the effects of a weighted blanket on sleep quality scores.
| Participant | Sleep quality with standard blanket (Condition A) | Sleep quality with weighted blanket (Condition B) | Difference | Rank of Difference | Rank if positive | Rank if negative |
|---|---|---|---|---|---|---|
| A | 12 | 15 | ||||
| B | 15 | 11 | ||||
| C | 14 | 14 | ||||
| D | 11 | 18 | ||||
| E | 16 | 10 | ||||
| F | 15 | 13 | ||||
| G | 10 | 11 | ||||
| H | 12 | 17 | ||||
| Total: |
Practise Edexcel A Level Psychology Methods with exam-style questions for A Level Psychology. 638 questions, matched to the Edexcel A Level Psychology (9PS0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.