“…However, an unresolved proposition of ambivalent sexism theory and our research is that formative experiences within heterosexual romantic relationships should be similarly formative for the development of sexist attitudes (Glick & Hilt, ; Hammond, Milojev, Huang, & Sibley, ). Evidence for this proposition is inconsistent: prior research has found that adolescent boys' experience with romantic relationships is associated with greater benevolent sexism (Montañés, Megías, de Lemus, & Moya, ), or greater hostile sexism (de Lemus, Moya, & Glick, ; Viejo, Ortega‐Ruiz, & Sánchez, ), or neither (Mastari, Spruyt, & Siongers, ; for a review, see Ramiro‐Sánchez, Ramiro, Bermúdez, & Buela‐Casal, ). Adolescent girls' history of having romantic relationships more consistently predicts benevolent sexism, but the effect sizes are small (Mastari et al, ; Montañés et al, ; Viejo et al, ), suggesting that other factors may play a larger role.…”