Dr. Harrison and Dr. Patel are investigating the relationship between the daily average ambient noise level (in decibels) in open-plan offices and the self-reported stress levels of employees (on a scale of 1 to 50).
Table 1 shows the raw data from their investigation.
| Average noise level (dB) | Stress score |
|---|---|
| 62.4 | 18 |
| 68.1 | 29 |
| 75.0 | 41 |
| 55.2 | 12 |
| 70.5 | 35 |
| 80.3 | 47 |
| 58.7 | 15 |
| 64.9 | 22 |
| 72.1 | 38 |
| 60.2 | 20 |
Table 1
Dr. Harrison and Dr. Patel used Spearman's rho to analyze their data.
State two reasons why they used Spearman's rho.
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.