Across the fall data collection period, invitations to participate were sent to 3623 individuals who were registered freshman who were at least 18 years of age. A total of 2056 individuals (57%) completed the survey; 95% (N = 1961) of whom came in to pick up their payment. Survey completion was considerably higher among on-campus freshman (62%) than among off-campus freshmen (36%). In following up on this differential participation, we found a number of differences between participants living on and off campus. Males were slightly more likely to live off campus (15 vs. 12% of females; χ 2 = 5.94, p = 0.02) and African American students were less likely to live off-campus (8 vs. 14% of white and other ethnicity students; χ 2 = 12.69, p < 0.01). Additionally, those who lived off campus were more likely to report having a job (43 vs. 23% of on-campus students; χ 2 = 48.354, p < 0.01), and less likely to report participating in sports activities (χ 2 = 8.33, p = 0.04) and fraternity/sorority parties or events (χ 2 =
