The effect of gender and male distinctiveness threat on prejudice against homosexuals.

Positive distinctiveness threat is central for understanding ingroup bias, but its role in gender differences in the expression of sexual prejudice is not yet satisfactorily elucidated. We analyzed this issue by proposing that sexual prejudice is a defensive reaction to ensure intergroup distinctiveness, so that heterosexual men are more prejudiced against homosexuals than heterosexual women because they strive more for positive distinctiveness. In Study 1 ( = 232), we found that men exhibited more prejudice against gay men than lesbians, while women did not significantly differentiate their prejudice against these target groups. In Study 2, we manipulated the target group of prejudice (gay men vs. lesbians) in a sample of heterosexual men ( = 79) and confirmed that they differentiated more between heterosexual men and gay men than between heterosexual women and lesbians. In Study 3 ( = 177), we manipulated the threat to the distinctiveness between the ingroup (i.e., heterosexual men and heterosexual women) and the outgroup (i.e., gay men and lesbians) and demonstrated that the perceived distinctiveness mediates the relationship between gender and sexual prejudice in men but not in women. Finally, in Study 4 ( = 75), we manipulated the distinctiveness threat for men and women and measured sexual prejudice by using an implicit measure. The results showed more implicit prejudice in men than in women when intergroup distinctiveness was threatened (vs. affirmed). Our results have important implications for understanding sexual prejudice by shedding light on the role played by the distinctiveness threat of gender differences in expressing homophobia. (PsycInfo Database Record (c) 2022 APA, all rights reserved).