Pre | Engaged days | Post | p valuea | ||||
---|---|---|---|---|---|---|---|
Mean | SD | Meanb | SD | Meanb | SD | ||
Intervention | |||||||
School A (n = 51) | 20.2 | 2.36 | 23.4 | 10.30 | 21.1 | 2.81 | 0.02 |
Control (n = 242) | 19.7 | 3.05 | 18.6 | 2.92 | 19.7 | 3.28 | 0.83 |
School B (n = 21) | 19.2 | 2.86 | 18.1 | 2.56 | 20.2 | 3.26 | |
School C (n = 221) | 19.7 | 3.07 | 18.6 | 2.97 | 19.7 | 3.26 |