| Variable | Dimensions of the variable | Group | Adjusted mean | Adjusted standard deviation |
| Bullying clinical symptoms | Bullying | Experimental | 17.83 | 1.94 |
| Control | 20.16 | 2.79 | ||
| Fighting | Experimental | 10.16 | 1.46 | |
| Control | 12.91 | 1.67 | ||
| Victimization | Experimental | 10.66 | 1.46 | |
| Control | 14.50 | 1.50 |