Buunk, Angleitner, Oubaid and Buss (this issue) offer even more evidence for our contention that responses to infidelity are based on a rational interpretation of the available evidence. They find that in cultures with less strict sanctions against extramarital sex than in the United States, people are relatively less troubled by sexual infidelity compared with emotional infidelity. The evoluti...

The aim of this study was to validate the Romanian version Internet Infidelity Scale (IIS), and determine its psychometric properties in Romanian couple relationships. Specifically, IIS assesses severity 44 specific acts on both Self Infidelity Partner versions. Methods: 675 participants completed Internet Infidelity Scale (RVIIS), (DIS), Extra-Dyadic Behaviors Inventory (EBI), Satisfacti...

committed mateships (v) men paired with physically attractive women exhibit elevated jealous mate-guarding, whereas (vi) women paired with more resource-endowed men exhibit more jealous mate-guarding [7]. (vii) Near ovulation – the critical window in which a man’s paternity probability is compromised by a partner’s sexual infidelity – men increase jealous mate-guarding [8]. Cognitively, relativ...

Two studies tested the predictions that the disconfirmation of the prospect of a mate’s sexual infidelity generates more intense relief in men than in women, whereas the disconfirmation of the prospect of a mate’s emotional infidelity generates more intense relief in women than in men. Additionally, the intensity of relief was predicted to increase with the likelihood of infidelity. The partici...

Data from a large survey of 1,561 professionals were used to examine the relationship between power and infidelity and the process underlying this relationship. Results showed that elevated power is positively associated with infidelity because power increases confidence in the ability to attract partners. This association was found for both actual infidelity and intentions to engage in infidel...

The present study tests two predictions derived from the evolutionary view of jealousy. (1) For men the disengagement of attentive resources from task-irrelevant cues to sexual infidelity is more difficult than from neutral or emotional infidelity cues. Conversely, for women the disengagement of attentive resources from task-irrelevant cues to emotional infidelity is more difficult than from ne...

Infidelities—sexual, emotional, or both—afflict many long-term romantic relationships. When a person discovers a partner’s betrayal, a major decision faced is to forgive the partner and remain together or to terminate the relationship. Because men and women have confronted different adaptive problems over evolutionary history associated with different forms of infidelity, we hypothesised the ex...

Two experiments test the prediction derived from the evolutionary view of jealousy that men are particularly concerned with a mate s sexual infidelity and women with a mate s emotional infidelity. Experiment 1 examines sex differences with respect to the information men and women actively request from their partner when suspecting her or his infidelity. Experiment 2 tests the hypothesis that wi...