Table 1.
Potential Moderator | Main Effect P-Value | Main Effect ES | Interaction P-Value | Interaction ES | Status |
---|---|---|---|---|---|
Demographics | |||||
Gender | .48 | .05 | .99 | .03 | |
Age | .04* | .07 | .99 | .01 | Predictor |
Hispanic ethnicity | .28 | .03 | .99 | .01 | |
Psychological Factors | |||||
Baseline alcohol use | .17 | .08 | .40 | .01 | |
Depression | .37 | .02 | .38 | <.01 | |
Social/Contextual | |||||
Parent problematic use | .37 | .01 | .04* | .03 | Moderator |
Peer substance involvement | .44 | .03 | .07+ | .02 | Moderator (trend) |
Note. ES = effect size. Effect sizes are computed using Cohen’s f2 statistic, which summarizes differences in model R2, and where values of.02, .15, and .35 indicate small, medium, and large effects, respectively.
p < .05,
p = 0.07.