Measuring Acceptability and Engagement of The Keep It Up! Internet-Based HIV Prevention Randomized Controlled Trial for Young Men Who Have Sex With Men

: HIV disproportionately impacts young men of color who have sex with men. Keep It Up! (KIU!) is an online intervention that addresses the needs of this population. The study objective was to examine intervention acceptability and engagement. Outcomes of interests were qualitative and quantitative acceptability and engagement measures, content ratings, and paradata. On average, participants rated content (4 out of 5 stars) and acceptability (3.5 out of 4) highly. Compared to White participants, Black participants found KIU! more useful, engaging, and acceptable; Latino participants found KIU! more engaging; and other non-White participants found KIU! more engaging and acceptable. Participants with high school or less education found KIU! more useful, engaging, acceptable, and deserving of five stars than college graduates (p values = .047, <.001, .002, .01) and graduate degree holders (p values = .04, .001, <.001, .004). KIU! is a promising prevention tool for highest risk populations.