One half century after the famous Stonewall uprising in New York City, the violence faced by lesbians (L), gays (G), bisexuals (B), and trans individuals (T) continues to be a social reality. Predictive models confirmed the literature on social and ideological conservatism. In general, the groups of men and heterosexuals obtained higher negativity scores and lower acceptance scores, with significant correlations being more frequent in the heterosexual group. Descriptive, multivariate analysis of variance, bivariate correlations and multiple regression were used. A study was conducted with 655 cis women (471 heterosexuals, 179 bisexuals and lesbians) and 174 cis men (120 heterosexuals, 54 bisexuals and gays). The present study evaluates the correlations between sexism, homonegativity, binegativity, pro-trans attitudes, political affiliation, contact with LGBT individuals and perceived stigma among psychology students. 2Department of Social Psychology and Methodology, Faculty of Psychology, Autonomous University of Madrid, Madrid, Spain.1Departament of Psychology (Social Psychology), Rey Juan Carlos University, Alcorcón, Spain.Miguel Ángel López-Sáez 1*, Dau García-Dauder 1 and Ignacio Montero 2