Level | Participants | Mean score | S.D. |
School (Bangpleepattanasuksalai) | 30 | 61.40 | 15.59 |
School size | 235,253 | 41.15 | 12.69 |
School location | 7925 | 42.97 | 12.88 |
Province | 14,408 | 43.82 | 13.07 |
Region | 152,573 | 43.14 | 13.10 |
Country | 716,778 | 42.59 | 13.18 |