| Item | Mean | Standard deviation | Median | IQR | ||||||||
| 1st | 2nd | 3rd | 1st | 2nd | 3rd | 1st | 2nd | 3rd | 1st | 2nd | 3rd | |
| 1 | 3.6 | 3.9 | 4.1 | 1.1 | 0.9 | 0.7 | 4.0 | 4.0 | 4.0 | 1.0 | 0.0 | 1.0 |
| 2 | 3.1 | 3.2 | 3.3 | 1.1 | 1.0 | 1.0 | 3.0 | 3.0 | 3.0 | 2.0 | 2.0 | 1.0 |
| 3 | 3.3 | 3.4 | 3.5 | 1.0 | 0.9 | 0.8 | 3.0 | 3.0 | 3.0 | 1.0 | 1.0 | 1.0 |
| 4 | 3.2 | 3.2 | 3.3 | 1.0 | 0.8 | 0.9 | 3.0 | 3.0 | 3.0 | 1.8 | 1.0 | 1.0 |
| 5 | 3.5 | 3.6 | 3.7 | 1.1 | 0.9 | 0.8 | 4.0 | 4.0 | 4.0 | 1.0 | 1.0 | 1.0 |
| 6 | 3.9 | 4.0 | 4.3 | 0.9 | 0.8 | 0.8 | 4.0 | 4.0 | 4.0 | 2.0 | 0.0 | 1.0 |
| 7 | 4.2 | 4.0 | 4.2 | 0.9 | 0.7 | 0.8 | 4.0 | 4.0 | 4.0 | 1.0 | 1.0 | 1.0 |
| 8 | 4.3 | 4.4 | 4.5 | 0.8 | 0.7 | 0.7 | 4.0 | 5.0 | 5.0 | 1.0 | 1.0 | 1.0 |
| 9 | 4.1 | 4.0 | 4.1 | 0.8 | 0.8 | 0.8 | 4.0 | 4.0 | 4.0 | 1.0 | 1.0 | 1.0 |
| 10 | 3.0 | 3.1 | 3.2 | 0.9 | 0.9 | 0.8 | 3.0 | 3.0 | 3.0 | 2.0 | 1.0 | 1.0 |
| 11 | 3.6 | 3.7 | 3.8 | 1.0 | 0.9 | 0.9 | 3.0 | 4.0 | 4.0 | 1.0 | 1.0 | 1.0 |
| 12 | 3.9 | 4.1 | 4.2 | 1.0 | 0.7 | 0.8 | 4.0 | 4.0 | 4.0 | 2.0 | 1.0 | 1.0 |
| 13 | 2.9 | 3.0 | 3.0 | 1.0 | 0.9 | 0.9 | 3.0 | 3.0 | 3.0 | 1.0 | 2.0 | 2.0 |
| 14 | 3.4 | 3.5 | 3.7 | 0.9 | 0.9 | 0.8 | 3.0 | 4.0 | 4.0 | 1.0 | 1.0 | 1.0 |
| 15 | 4.0 | 3.9 | 4.1 | 0.9 | 0.8 | 0.7 | 4.0 | 4.0 | 4.0 | 2.0 | 1.0 | 1.0 |
| 16 | 3.4 | 3.4 | 3.5 | 0.9 | 0.9 | 0.8 | 3.0 | 3.0 | 3.0 | 1.0 | 1.0 | 1.0 |