Table 3.
Differences between experimental and control schools at 6-months post-intervention
| Variable |
Experimental schools (mean standard error) |
Control schools (mean standard error) |
t (8) | Cohen's d |
| Screen time | ||||
| Child report (hours/week) | 27.8 (0.8) |
29.1 (0.9) |
-1.33 | .67 |
| Parent report (hours/week) | 23.7 (0.5) |
25.7 (0.5) |
-2.06a | 1.38 |
| Fruit and vegetable consumption | ||||
| Child report (servings/day) | 4.1 (0.2) |
4.0 (0.1) |
2.32a | .26 |
| Parent report (servings/week) | 22.5 (0.7) |
21.3 (0.3) |
1.93a | 1.01 |
| Physical activity | ||||
| Pedometer (steps/day) | 11,442 (425) |
11,231 (321) |
.60 | .26 |
| Body mass index | ||||
| Body mass index (kg/m2) | 19.4 (0.1) |
19.5 (0.1) |
-1.13 | .15 |
Analyses compare experimental and control schools with hierarchical multilevel regressions, controlling for baseline levels.
aDifferences between experimental and control schools significant at P < 0.05.