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Table 2 Differences between experimental and control schools at immediate post-intervention

From: Evaluation of a multiple ecological level child obesity prevention program: Switch®what you Do, View, and Chew

Variable Experimental schools
(mean standard error)
Control schools
(mean standard error)
t(8) Cohen's d
Screen time
Child report (hours/week) 32.5
(0.6)
31.2
(1.0)
.26 .69
Parent report (hours/week) 22.8
(0.7)
24.6
(0.3)
-2.15a 1.26
Fruit and vegetable consumption
Child report (servings/day) 4.4
(0.2)
4.2
(0.1)
1.78b .52
Parent report (servings/week) 24.9
(0.7)
22.6
(0.4)
2.69a 1.36
Physical activity
Pedometer (steps/day) 12,250
(260)
11,870
(232)
.91 1.83
Body mass index
Body mass index (kg/m2) 19.0
(0.02)
19.0
(0.03)
.05 .38
  1. Analyses compare experimental and control school with hierarchical multilevel regressions, controlling for baseline levels.
  2. aDifferences between experimental and control schools significant at P < 0.05, one-tailed; bdifferences marginally significant at P < 0.06, one-tailed.