What feeds the green-eyed monster: sociodemographic and sociosexual determinants of jealousy

Abstract

Although studies consistently show gender differences in emotional vs. sexual jealousy, a substantial part of variance in jealousy is left unexplained. Here, we present two studies with aim to explore other correlates of jealousy, aside from gender. In the first online study (n = 2970), we found that participants who reported being more upset by the emotional infidelity scenario were older and more educated and had a higher income than those who reported being more upset by the sexual infidelity scenario. Those who expressed greater sexual jealousy gave higher ratings of importance of potential partner's mate value. Heterosexual women were more likely to report emotional jealousy than non-heterosexual women. Among men, sexual orientation did not predict type of jealousy. As the role of reproductive status was largely neglected in previous research, in the second study, we used a continuous measure to explore jealousy as a function of age (reproductive vs. post-reproductive; n = 199). We found that the older participants were less jealous overall, and that the previously reported gender differences disappeared in the post-reproductive group. These results provide further support for the notion that jealousy is a context-specific, adaptive response, which diminishes in both intensity and specificity as the threat that it was designed for wanes.