| Variables | Participants | |
| No. (%) | ||
| Age | 3 | 20 (15.5) |
| 4 | 63 (48.8) | |
| 5 | 28 (21.7) | |
| 6 | 18 (14) | |
| Gender | Male | 66 (51.16) |
| Female | 63 (48.84) | |
| School group | EG* | 74 (57.36) |
| CG* | 55 (42.64) | |
| Area | Central area | 67 (51.93) |
| peripheral area | 62 (48.07) |