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Combinations of questions in the first survey with moderate correlations
| Physicians | rho |
|---|---|
| Q10 & Q17 | 0.59 |
| Q15 & Q17 | 0.49 |
| Q17 & Q20 | 0.45 |
| Ward nurses | rho |
| Q10 & Q20 | 0.53 |
| Q11 & Q20 | −0.42 |
| Q15 & Q17 | 0.41 |
| Q15 & Q20 | 0.42 |
| Q18 & Q19 | 0.46 |
Rho: the correlation coefficient by polychoric correlation
