Level | Pre-evaluation | Post-evaluation | ||||||
Control | Experimental | Control | Experimental | |||||
N | % | N | % | N | % | N | % | |
None | 30 | 46 | 16 | 36 | 44 | 66 | 27 | 61 |
Moderate | 29 | 44 | 18 | 41 | 1 8 | 27 | 13 | 30 |
Severe | 7 | 10 | 10 | 23 | 2 | 7 | 4 | 9 |