Crystal Smit

Social Network Intervention vs. Mass Media Intervention 4 79 Correlations Among Variables Pearson’s correlations were computed to examine the bivariate relationship between the variables of interest (see Table 4.2). Children’s water consumption was positively related to descriptive norms and not related to injunctive norms. Children’s SSB consumption was only negatively related to sex, indicating that boys drank more SSB than girls. Therefore, we included sex as a covariate in the model testing the mean-level differences between conditions on SSB consumption. Table 4.2 Correlations among all study variables ( N = 451) 1 2 3 4 5 6 7 8 1- Sex a 2- Water consumption T1 .01 3- Water consumption T2 .03 .48*** 4- Water consumption T3 .01 .39*** .56*** 5- SSB consumption T1 -.16** .01 -.05 -.06 6- SSB consumption T2 -.17** -.04 .03 .01 .46*** 7- SSB consumption T3 -.09 -.06 .03 -.03 .32*** .55*** 8- Descriptive norms T1 .02 .12* .10* .08 -.00 -.09 .03 9- Injunctive norms T1 .02 .02 .01 -.02 .03 -.02 .00 .09 Note. T1, Time 1; T2, Time 2; T3, Time 3; a 0 = boy and 1 = girl;* p < .05, ** p < .01, *** p < .001. Main Analyses Condition Differences on Changes in Water and Sugar Sweetened Beverage Consumption The first structural path model examined whether children exposed to the social network intervention increased their water and decreased SSB consumption compared to those in the active control condition (H1a and H2a) and control condition (H1b and H2b). This model demonstrated a good fit to the observed data, RMSEA = .04, CFI = .97 and normed c 2 = 1.58. Table 4.3 presents the results of this model.