McKibbin, W.F., Miner, E.J., Shackelford, T.K., Ehrke, A.D., & Weekes-Shackelford, V.A. Men’s mate retention varies with men’s personality and their partner’s personality. Personality and Individual Differences, 56, 62-67.

Men’s mate retention varies with men’s personality and their partner’s personality.

McKibbin, W.F., Miner, E.J., Shackelford, T.K., Ehrke, A.D., & Weekes-Shackelford, V.A.

 

Mate retention is the recurrent adaptive problem of retaining a mate in a relationship. Humans may have evolved mechanisms which motivate behavior in response to this problem. We examined the relationship between men’s mate retention and men’s and their partner’s personality in studies of 467 men and 565 women in committed relationships. Participants reported on their own or their partner’s mate retention and both their own and their partner’s personality. Results indicate a negative relationship between men’s Emotional Stability and men’s mate retention and a positive relationship between men’s Agreeableness and men’s benefit-provisioning mate retention. Discussion addresses limitations and directions for future research addressing the links between personality and mate retention

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McKibbin, W.F. (2014). Evolutionary psychology and rape avoidance. In Weekes-Shackelford, V.A., & Shackelford, T.K. (Eds.), Evolutionary perspectives on human sexual psychology and behavior. New York: Springer.

Evolutionary psychology and rape avoidance.

William F. McKibbin

 

This chapter reviews the topic of women’s rape avoidance from a modern evolutionary psychological perspective (for an overview, see Confer et al., 2010).  Evolutionary psychology provides researchers with a powerful heuristic tool that can be used to generate new testable hypotheses across all domains of psychology.

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McKibbin, W.F., Pham, M.N., & Shackelford, T.K. (2013). Investigating human sperm competition in post-industrial ecologies: Cues to sperm competition predict pornographic DVD sales rank. Behavioral Ecology, 24, 819-823.

Investigating human sperm competition in post-industrial ecologies: Cues to sperm competition predict pornographic DVD sales rank.

McKibbin, W.F., Pham, M.N., & Shackelford, T.K.

 

Sperm competition theory has been used to generate the hypothesis that men prefer to view pornographic images suggesting the presence of a rival male, over images which do not. The current research uses a new methodology to address conflicting evidence about men’s preferences for pornographic images. Raters coded a random sample of 166 pornographic DVDs (from a population of 49 493), which were then analyzed using multiple regression. Consistent with the hypothesis generated from sperm competition theory, the number of images on a DVD cover and screenshots depicting 2 or more men interacting with 1 woman (suggesting the presence of sperm competition) predicts DVD sales rank, whereas the number of images on a DVD cover and screenshots depicting 2 or more women interacting with 1 man (suggesting the absence of sperm competition) does not predict DVD sales rank. Discussion addresses limitations and future directions, including using penile plethysmography to avoid relying on correlational analyses.

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