In our recent publication “In defense of tradition: Religiosity, conservatism, and opposition to same-sex marriage in North America”, we explore the mechanisms behind religious opposition to same-sex marriage.
Arguments opposing same-sex marriage are often made on religious grounds. In five studies, we observed that religious opposition to same-sex marriage was explained, at least in part, by conservative ideology and linked to sexual prejudice. Moreover, results revealed that resistance to change was more important than opposition to equality in explaining religious opposition to same-sex marriage.
You can read the full paper here.