Project Summary (Supplement) Purpose of the Administrative Supplement: In response to NOT-OD-22-159 (Support Research on Preventive Interventions with Populations that Experience Health Disparities), the purpose of this administrative supplement is to support the addition of two aims to further assess the impact of an alcohol use (AU) and teen dating violence (TDV) online prevention program (PRYSHM [Promoting Resilient Youth with Strong Hearts and Minds]; formerly entitled R3) for sexual and gender minority youth (SGMY) on SGMY of color. In addition to evidence-based AU and DSV prevention components (e.g., bystander intervention skills, correcting misperceptions of social norms, refusal skills), the nine-session PRYSHM program focuses on positive identity development, coping with stressors related to being a SGMY as well as a racial/ethnic minority youth, and seeks to instill hope for the future in SGMY, including multiply minoritized SGMY. As such, in this supplement, we seek to sample an additional 100 SGMY to examine positive ethnic/racial/cultural identity development as a mediator of program outcomes (e.g., reductions in AU and TDV [primary outcomes] and reductions in depression, drug use, and sexual risk taking) among SGMY of color (Supplemental Aim 1). We also seek to ensure that the PRYSHM program is working equally well for SGMY of color by conducting multiple group models by SGMY race/ethnicity (Supplemental Aim 2). These aims are critically important given we know essentially nothing about prevention among SGMY of color, although research suggests that universal prevention programs do not work for SGMY, nor for youth of color. Although efforts are needed at the structural level to reduce heterosexism, cisgenderism, and racism, and create safe/affirming environments for SGMY, including SGMY of color, so too are programs that help to build resilience in these youth as a way to reduce health disparities.