| Baseline |  | Mid-way | Post-intervention | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Control (n† = 908) | Intervention (n† = 510) |  | Control (n† = 885) | Intervention (n† = 499) | Control (n† = 908) | Intervention (n† = 510) | ||||||
 | Mean | SD | Mean | SD | p | Mean | SD | Mean | SD | Mean | SD | Mean | SD |
Enjoyment | 4.13 | (0.76) | 4.09 | (0.77) | 0.35 | 4.08 | (0.75) | 4.13 | (0.78) | 3.96 | (0.83) | 3.88 | (0.90) |
Self-efficacy | 3.86 | (0.76) | 3.86 | (0.79) | 0.80 | 3.93 | (0.75) | 3.99 | (0.78) | 3.86 | (0.82) | 3.77 | (0.89) |
Social support from parents | 2.37 | (0.76) | 2.38 | (0.76) | 0.83 | 2.45 | (0.81) | 2.42 | (0.77) | 2.31 | (0.81) | 2.24 | (0.78) |
Social support from teachers | 1.68 | (0.70) | 1.76 | (0.83) | 0.07 | 1.61 | (0.65) | 1.75 | (0.77) | 1.47 | (0.62) | 1.61 | (0.73) |
Social support from friends | 2.96 | (1.00) | 2.96 | (1.04) | 0.95 | Â | Â | Â | Â | 2.80 | (0.99) | 2.82 | (0.97) |
Environmental opportunities for PA | 4.26 | (0.77) | 4.27 | (0.76) | 0.79 | Â | Â | Â | Â | 4.11 | (0.89) | 4.20 | (0.90) |
Parental regulation TV-viewing | 3.64 | (0.96) | 3.68 | (0.93) | 0.43 | Â | Â | Â | Â | 3.41 | (1.07) | 3.38 | (1.05) |
Parental regulation computer/game-use | 3.55 | (0.99) | 3.53 | (1.01) | 0.78 | Â | Â | Â | Â | 3.28 | (1.11) | 3.28 | (1.10) |
Social inclusion at school | 4.43 | (0.61) | 4.39 | (0.62) | 0.15 | Â | Â | Â | Â | 4.36 | (0.69) | 4.32 | 0.77 |