General Statistical Considerations. Continuous variables will be summarized with descriptive statistics (n, mean, standard deviation, median, first and third quartiles, and min and max); categorical variables will be described with counts and percentages. Change scores and percent change scores will be calculated from baseline for follow-ups at 4- and 9-months. Numerical and graphical summaries will be provided overall, by subpopulation within college communities (e.g., by gender, sexual attraction, fraternity/sorority or athletic team membership) and most importantly by training condition. Simple comparisons of groups will be made using ANOVA for continuous variables and chi-square tests for categorical outcomes. Comparisons between groups will be conducted as randomized; simple comparisons of continuous variables between groups will be performed using ANOVA and chi-square tests of independence for categorical variables. Although groups will be randomly assigned, potential confounders will be examined with bivariate analyses and comparisons requiring covariate adjustment will use regression modeling (e.g. ANCOVA, logistic regression).