An experiment was conducted to investigate the impact of sleep deprivation on working memory performance. Two groups of participants completed a digit-span recall test (with a maximum possible score of 15 digits). One group was sleep-deprived for 24 hours, while the control group was well-rested.
| Sleep-deprived participants | Well-rested participants | ||
|---|---|---|---|
| Participant | Score | Participant | Score |
| a | 8 | a | 12 |
| b | 11 | b | 14 |
| c | 9 | c | 11 |
| d | 11 | d | 13 |
| e | 6 | e | 14 |
| f | 12 | f | 15 |
What is the mode for the number of digits recalled by the sleep-deprived group?
6
9
11
12
513 exam-style questions on OCR A Level Psychology Data recording, analysis and presentation. Each one has a worked solution and a mark scheme showing where the marks go.