Dr. Aris conducted an observational study on stress-coping strategies among healthcare workers. He had a one-tailed (directional) hypothesis with df=1df = 1df=1 and used p=0.01p = 0.01p=0.01 as his level of significance.
| Professional Role | Problem-Focused Coping | Emotion-Focused Coping |
|---|---|---|
| Doctors | 22 | 8 |
| Nurses | 12 | 18 |
| Professional Role | Coping Strategy | Observed | Expected | O−EO-EO−E | (O−E)2(O-E)^2(O−E)2 | (O−E)2/E(O-E)^2 / E(O−E)2/E |
|---|---|---|---|---|---|---|
| Doctors | Problem-Focused | 22 | 17.00 | 5.00 | 25.00 | 1.47 |
| Emotion-Focused | 8 | 13.00 | -5.00 | 25.00 | 1.92 | |
| Nurses | Problem-Focused | 12 | 17.00 | -5.00 | 25.00 | 1.47 |
| Emotion-Focused | 18 | 13.00 | 5.00 | 25.00 | 1.92 | |
| Chi-squared = | 6.78 |
Note: The critical value of Chi-squared for a one-tailed test at p=0.01p = 0.01p=0.01 with df=1df = 1df=1 is 5.41.
Determine whether there is a significant difference between doctors and nurses in their choice of coping strategy.
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.