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| Control schools | Intervention schools | ||
|---|---|---|---|
| N | mean score | N | mean score |
| 129 | 3.37 | 122 | 4.18 |
| 159 | 4.38 | 27 | 3.85 |
| 99 | 3.66 | 40 | 3.80 |
| 99 | 3.46 | 138 | 4.86 |
| 149 | 3.19 | 101 | 4.09 |
| 88 | 4.14 | 79 | 4.23 |
| 104 | 2.86 | 87 | 4.11 |
| 191 | 3.90 | 64 | 4.06 |
| 70 | 3.84 | 86 | 4.49 |
| 107 | 3.82 | 126 | 4.60 |
| 98 | 3.65 | 98 | 4.48 |
| 50 | 3.16 | 68 | 3.75 |
| 164 | 4.63 | ||
