abstract: Empirical research has supported that higher behavioral engagement with and higher affective pride toward the LGBTQ+ community are associated with greater psychological well-being among Latinx sexual minorities (e.g., lesbian, gay, bisexual, queer, etc.). Less is known, however, about predictors of sexual identity development among Latinx sexual minorities. This study explores how heterosexist discrimination may be related to the exploration and affirmation of one’s sexual minority identity. Conversely, conflicts in allegiance (CIA), that is, the experience of perceived incompatibility Latinx sexual minorities may experience between their racial-ethnic and sexual minority identities, was examined as a potential negative correlate. This study applies a rejection-identification model and identity development theories to test the associations between heterosexist discrimination, conflicts in allegiances and sexual identity constructs (LGBTQ+ behavioral engagement and affective pride). Among a sample of 366 Latinx sexual minorities, this study found both heterosexist discrimination and conflicts in allegiances were significant predictors of LGBTQ+ behavioral engagement and affective pride. Additionally, data supported two mediational models that tested relations between heterosexist discrimination, LGBTQ+ behavioral engagement, and affective pride. This study contributes to our understanding of sexual minority identity among Latinx individuals. These findings can assist helping professionals and community centers in promoting psychological well-being among Latinx sexual minority individuals by informing identity-affirming practices and interventions. / Dissertation/Thesis / Masters Thesis Counseling Psychology 2018