Human Nature 18 (1):74-84 (2007)

Using data collected from people with at least one brother and one sister, and consistent with an evolutionary perspective, we find that older men and women (a) are more upset by a brother’s partner’s sexual infidelity than by her emotional infidelity and (b) are more upset by a sister’s partner’s emotional infidelity than by his sexual infidelity. There were no effects of participant sex or sex of in-law on upset over a sibling’s partner’s infidelities, but there was an effect of participant sex on reports of upset over one’s own partner’s infidelities. The results suggest that the key variable among older participants is the sex of the sibling or, correspondingly, the sex of the sibling’s partner, as predicted from an evolutionary analysis of reproductive costs, and not the sex of the participant, as predicted from a socialization perspective. Discussion offers directions for future work on jealousy
Keywords Evolutionary psychology  Jealousy  Siblings’ partners  Socialization
Categories (categorize this paper)
DOI 10.1007/bf02820847
Edit this record
Mark as duplicate
Export citation
Find it on Scholar
Request removal from index
Revision history

Download options

PhilArchive copy

Upload a copy of this paper     Check publisher's policy     Papers currently archived: 65,657
Through your library

References found in this work BETA

Add more references

Citations of this work BETA

No citations found.

Add more citations

Similar books and articles

Heights and Weights of da-an Boys: Did Sisters Really Make a Difference?B. Floyd - 2005 - Journal of Biosocial Science 37 (3):287-300.


Added to PP index

Total views
33 ( #334,927 of 2,462,325 )

Recent downloads (6 months)
1 ( #449,321 of 2,462,325 )

How can I increase my downloads?


My notes