|
| Education level | Number | Mean scores | Standard deviation |
| On the overall sample | level 1 | 32 | 45.25 | 11.24 |
| level 2 | 37 | 53.18 | 12.52 | |
| level 3 | 31 | 60.12 | 9.38 | |
| On the experimental sample | level 1 | 19 | 49.94 | 10.07 |
| level 2 | 19 | 58.26 | 10.50 | |
| level 3 | 12 | 61.62 | 9.77 | |
| On the control sample | level 1 | 13 | 38.38 | 10.34 |
| level 2 | 18 | 47.63 | 10.91 | |
| level 3 | 19 | 59.21 | 9.12 |