Figure 3.

Model-based mean difference estimates of the two intervention groups, compared to control, in alcohol-related problems at baseline and every three months (top), and at baseline and each subsequent month post intervention (bottom). Theta score = latent trait severity score for alcohol-related problems. PF = stand-alone personalized feedback intervention; MI + PF = in-person motivational intervention with personalized normative feedback profile. Vertical dotted lines indicate 95% confidence intervals. A horizontal dashed line at zero indicates no group difference.