Researchers investigating the relationship between sleep and attentional control gathered data from 10 participants. They recorded the sleep duration (in hours) of each participant the night before a selective attention test, alongside the number of errors each participant made on the test (scored out of 30).
The raw data from the study are shown in the table below.
| Sleep duration (hours) | Errors on selective attention test (out of 30) |
|---|---|
| 4.5 | 24 |
| 6.0 | 18 |
| 7.5 | 11 |
| 8.0 | 8 |
| 5.0 | 21 |
| 9.0 | 5 |
| 4.0 | 26 |
| 6.5 | 14 |
| 7.0 | 12 |
| 8.5 | 7 |
Draw a scatter diagram to show these data.
Practise Edexcel A Level Psychology Research methods and skills with exam-style questions for A Level Psychology. 657 questions covering Research methods and skills, 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.
