Specific aims are as follows:
Aim 1 (Stage IA): Modify Alcohol and Sexual Assault Prevention (ASAP) content to an eHealth format to include personalized content for each risk group (1. cisgender heterosexual men; 2. cisgender heterosexual women; and 3. sexual and gender minorities).
Aim 1a: Assess normative behaviors (n = 500) regarding alcohol use and SA for feedback.
Aim 1b: Adapt and assess initial acceptability of a workbook version of the intervention content among key stakeholders (college administrators and students from each risk group [n=5 from each group]).
Aim 2 (Stage IB): Open Pilot Trial. Obtain usability of ASAP among 30 students who engage in HED (10 from each risk group) in an open pilot trial.
Aim 3 (Stage IB): A pilot to assess effect size and variability for planning a randomized trial in the future. Randomize students who engage in HED to ASAP or control condition to observe preliminary effect sizes and estimate the variability using a 3-month follow-up. Sample size was determined to estimate the variability within a reasonable margin of error. This calculation also accounted the low base rates of SA and 20% attrition. This led to a sample size of 162 students (n=54 from each risk group).