Level | Participants | Mean score | S.D. |
School (Bangpleepattanasuksalai) | 30 | 65.67 | 16.54 |
School size | 235,225 | 40.77 | 18.84 |
School location | 7924 | 43.94 | 19.35 |
Province | 14,405 | 45.77 | 20.09 |
Region | 152,559 | 44.51 | 20.01 |
Country | 716,684 | 43.47 | 20.11 |