New Paper:
Kruger, D.J., Fisher, M.L., Fitzgerald, C.J. (in press). Factors influencing the intended likelihood of exposing sexual infidelity. Archives of Sexual Behavior. DOI 10.1007/s10508-014-0469-x

There is a considerable body of literature on infidelity within romantic relationships. However, there is a gap in the scientific literature on factors influencing the likelihood of uninvolved individuals exposing sexual infidelity. Therefore, we devised an exploratory study examining a wide range of potentially relevant factors. Based in part on evolutionary theory, we anticipated nine potential domains or types of influences on the likelihoods of exposing or protecting cheaters, including kinship, strong social alliances, financial support, previous relationship behaviors (including infidelity and abuse), potential relationship transitions, stronger sexual and emotional aspects of the extrapair relationship, and disease risk. The pattern of results supported thesepredictions (N = 159 men,328 women). In addition, there appeared tobea small positivebias for participants to report infidelity when provided with any additional information about the situation. Overall, this study contributes a broad initial description of factors influencing the predicted likelihood of exposing sexual infidelity and encourages further studies in this area.


The NorthEastern Evolutionary Psychology Society presents the 2015 Conference on Evolutionary Behavioral Sciences, hosted by the Department of Psychology at Suffolk University in downtown Boston, MA, April 9-12. This conference will have a broad representation of evolutionary science, including Anthropology, Biology, Criminology, Cultural studies, Education, Ethology, History, Political Science, Primatology, and Psychology, from scientists and scholars across 12 countries. The conference will open on Thursday evening with a keynote presentation by Steven Pinker in the historic Old South Meeting House. Other invited speakers include Robert Trivers, Felix Warneken, and Joyce Benenson. David Sloan Wilson will lead a panel on clinical applications of evolutionary theory, featuring Kalman Glantz and Nick Armenti. Early conference registration (by 4/1) is $75 for students and $150 for academics/professionals and includes the conference banquet.

Conference Website

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