Rory has kept a sleep diary for six weeks. During weeks 3–6, he feels tired during the day and struggles to concentrate at school. His bedroom was being redecorated during weeks 5–6, so he slept on an uncomfortable folding bed.
| Weeks | Usual bedtime | Average time Rory fell asleep | Average number of awakenings after sleep began | Sleep surface |
|---|---|---|---|---|
| 1–2 | 2:00 am | 2:20 am | 0.3 per night | Usual mattress |
| 3–4 | 10:30 pm | 1:35 am | 0.4 per night | Usual mattress |
| 5–6 | 10:30 pm | 10:55 pm | 3.2 per night | Uncomfortable folding bed |
Explain what Rory's diary suggests about two different causes of his insomnia during weeks 3–6. Use the data to explain why each cause produced a different form of insomnia.
53 exam-style questions on OCR GCSE Psychology 6.1 Key Concepts, covering 6.1.1 Functions, features and benefits of sleep, 6.1.2 Causes of sleep disorders, and 6.1.3 Endogenous pacemakers and exogenous zeitgebers. Each one has a worked solution and a mark scheme showing where the marks go.