Skip to main content
Log in

Distinguishing Family from Friends

Implicit Cognitive Differences Regarding General Dispositions, Attitude Similarity, and Group Membership

  • Published:
Human Nature Aims and scope Submit manuscript

Abstract

Kinship and friendship are key human relationships. Increasingly, data suggest that people are not less altruistic toward friends than close kin. Some accounts suggest that psychologically we do not distinguish between them; countering this is evidence that kinship provides a unique explanatory factor. Using the Implicit Association Test, we examined how people implicitly think about close friends versus close kin in three contexts. In Experiment 1, we examined generic attitudinal dispositions toward friends and family. In Experiment 2, attitude similarity as a marker of family and friends was examined, and in Experiments 3 and 4, strength of in-group membership for family and friends was examined. Findings show that differences exist in implicit cognitive associations toward family and friends. There is some evidence that people hold more positive general dispositions toward friends, associate attitude similarity more with friends, consider family as more representative of the in-group than friends, but see friends as more in-group than distant kin.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

Notes

  1. In the standard use of IATs, to measure people’s general attitudes toward a target category or object, the attribute pairing (capturing the valence of the attitude toward the target) is typically either pleasant/unpleasant or positive/negative. With either attribute pairing, the measures are seen as capturing basic implicit attitudes toward the targets.

References

  • Ackerman, J. M., Kenrick, D. T., & Schaller, M. (2007). Is friendship akin to kinship? Evolution and Human Behavior, 28(5), 365–374.

    Article  Google Scholar 

  • Brewer, M. B. (1999). The psychology of prejudice: In-group love and out-group hate? Journal of Social Issues, 55(3), 429–444.

    Article  Google Scholar 

  • Burnstein, E., Crandall, C., & Kitayama, S. (1994). Some neo-Darwinian decision rules for altruism: Weighing cues for inclusive fitness as a function of the biological importance of the decision. Journal of Personality and Social Psychology, 67(5), 773–789.

    Article  Google Scholar 

  • Buss, D. (2011). Evolutionary psychology: The new science of the mind (4th ed.). Boston: Pearson.

    Google Scholar 

  • Buttelmann, D., & Böhm, R. (2014). The ontogeny of the motivation that underlies in-group bias. Psychological Science, 25(4), 921–927.

    Article  Google Scholar 

  • Conner, M. T., Perugini, M., O’Gorman, R., Ayres, K., & Prestwich, A. (2007). Relations between implicit and explicit measures of attitudes and measures of behavior: Evidence of moderation by individual difference variables. Personality and Social Psychology Bulletin, 33(12), 1727–1740.

    Article  Google Scholar 

  • Curry, O., & Dunbar, R. I. M. (2013). Do birds of a feather flock together?: The relationship between similarity and altruism in social networks. Human Nature, 24(3), 336–347.

    Article  Google Scholar 

  • Curry, O., Roberts, S. G. B., & Dunbar, R. I. M. (2013). Altruism in social networks: Evidence for a “kinship premium.” British Journal of Psychology, 104(2), 283–295.

  • Dawkins, R. (1976). The selfish gene. Oxford: Oxford University Press.

    Google Scholar 

  • De Houwer, J. (2003). The extrinsic affective Simon task. Experimental Psychology, 50(2), 77–85.

    Article  Google Scholar 

  • DeBruine, L. M., Jones, B. C., Little, A. C., & Perrett, D. I. (2007). Social perception of facial resemblance in humans. Archives of Sexual Behavior, 37(1), 64–77.

    Article  Google Scholar 

  • DeScioli, P., & Kurzban, R. (2009). The alliance hypothesis for human friendship. PloS One, 4(6), e5802.

    Article  Google Scholar 

  • DeScioli, P., & Kurzban, R. (2011). The company you keep: Friendship decisions from a functional perspective. In J. I. Krueger (Ed.), Social judgment and decision making (pp. 209–225). New York: Psychology Press.

    Google Scholar 

  • Epstein, S., Pacini, R., Denes-Raj, V., & Heier, H. (1996). Individual differences in intuitive–experiential and analytical–rational thinking styles. Journal of Personality and Social Psychology, 71(2), 390.

    Article  Google Scholar 

  • Essock-Vitale, S. M., & McGuire, M. T. (1985). Women’s lives viewed from an evolutionary perspective, II: Patterns of helping. Ethology and Sociobiology, 6(3), 155–173.

  • Fu, F., Tarnita, C. E., Christakis, N. A., Wang, L., Rand, D. G., & Nowak, M. A. (2012). Evolution of in-group favoritism. Scientific Reports, 2. doi:10.1038/srep00460.

  • Gaertner, L., Iuzzini, J., Witt, M. G., & Oriña, M. M. (2006). Us without them: Evidence for an intragroup origin of positive in-group regard. Journal of Personality and Social Psychology, 90(3), 426–439.

    Article  Google Scholar 

  • Greenwald, A. G., McGhee, D. E., & Schwartz, J. L. (1998). Measuring individual differences in implicit cognition: The Implicit Association Test. Journal of Personality and Social Psychology, 74(6), 1464–1480.

  • Greenwald, A. G., Nosek, B. A., & Banaji, M. R. (2003). Understanding and using the Implicit Association Test, I: An improved scoring algorithm. Journal of Personality and Social Psychology, 85(2), 197–216.

  • Greenwald, A. G., Poehlman, T. A., Uhlmann, E. L., & Banaji, M. R. (2009). Understanding and using the Implicit Association Test, III: Meta-analysis of predictive validity. Journal of Personality and Social Psychology, 97(1), 17–41.

  • Hackman, J., Danvers, A., & Hruschka, D. J. (2015). Closeness is enough for friends, but not mates or kin: Mate and kinship premiums in India and U.S. Evolution and Human Behavior, 36(2), 137–145.

    Article  Google Scholar 

  • Hafen, C. A., Laursen, B., Burk, W. J., Kerr, M., & Stattin, H. (2011). Homophily in stable and unstable adolescent friendships: Similarity breeds constancy. Personality and Individual Differences, 51(5), 607–612.

    Article  Google Scholar 

  • Hamilton, W. D. (1964). The genetical evolution of social behaviour, I. Journal of Theoretical Biology, 7(1), 1–16.

  • Hamilton, W. D. (1975). Innate social aptitudes of man: An approach from evolutionary genetics. In R. Fox (Ed.), Biosocial anthropology (pp. 133–155). New York: Wiley.

    Google Scholar 

  • Hruschka, D. J. (2010). Friendship: Development, ecology, and evolution of a relationship. Berkeley: University of California Press.

    Book  Google Scholar 

  • Korchmaros, J. D., & Kenny, D. A. (2001). Emotional closeness as a mediator of the effect of genetic relatedness on altruism. Psychological Science, 12(3), 262–265.

    Article  Google Scholar 

  • Korchmaros, J. D., & Kenny, D. A. (2006). An evolutionary and close-relationship model of helping. Journal of Social and Personal Relationships, 23(1), 21–43.

    Article  Google Scholar 

  • Kruger, D. J. (2003). Evolution and altruism: Combining psychological mediators with naturally selected tendencies. Evolution and Human Behavior, 24(2), 118–125.

    Article  Google Scholar 

  • Lehmann, L., Keller, L., West, S. A., & Roze, D. (2007). Group selection and kin selection: Two concepts but one process. Proceedings of the National Academy of Sciences, 104(16), 6736.

    Article  Google Scholar 

  • Lickel, B., Hamilton, D. L., Wieczorkowska, G., Lewis, A., Sherman, S. J., & Uhles, A. N. (2000). Varieties of groups and the perception of group entitativity. Journal of Personality and Social Psychology, 78(2), 223–246.

    Article  Google Scholar 

  • Lieberman, D. (2009). Rethinking the Taiwanese minor marriage data: Evidence the mind uses multiple kinship cues to regulate inbreeding avoidance. Evolution and Human Behavior, 30(3), 153–160.

    Article  Google Scholar 

  • Lieberman, D., & Linke, L. (2007). The effect of social category on third party punishment. Evolutionary Psychology, 5(2), 289–305.

    Article  Google Scholar 

  • Lieberman, D., Tooby, J., & Cosmides, L. (2003). Does morality have a biological basis? An empirical test of the factors governing moral sentiments relating to incest. Proceedings of the Royal Society B: Biological Sciences, 270(1517), 819–826.

    Article  Google Scholar 

  • Lieberman, D., Oum, R., & Kurzban, R. (2008). The family of fundamental social categories includes kinship: Evidence from the memory confusion paradigm. European Journal of Social Psychology, 38(6), 998–1012.

    Article  Google Scholar 

  • Madsen, E. A., Tunney, R. J., Fieldman, G., Plotkin, H. C., Dunbar, R. I. M., Richardson, J.-M., & McFarland, D. (2007). Kinship and altruism: A cross-cultural experimental study. British Journal of Psychology, 98(2), 339–359.

    Article  Google Scholar 

  • McPherson, M., Smith-Lovin, L., & Cook, J. M. (2001). Birds of a feather: Homophily in social networks. Annual Review of Sociology, 27, 415–444.

    Article  Google Scholar 

  • Nosek, B. A. (2007). Implicit–explicit relations. Current Directions in Psychological Science, 16(2), 65–69.

    Article  Google Scholar 

  • Nosek, B. A., Greenwald, A. G., & Banaji, M. R. (2005). Understanding and using the Implicit Association Test, II: Method variables and construct validity. Personality and Social Psychology Bulletin, 31(2), 166–180.

  • Nosek, B. A., Greenwald, A. G., & Banaji, M. R. (2007). The implicit association test at age 7: A methodological and conceptual review. In J. A. Bargh (Ed.), Social psychology and the unconscious: The automaticity of higher mental processes (pp. 265–292). New York: Psychology Press.

    Google Scholar 

  • O’Gorman, R., Sheldon, K. M., & Wilson, D. S. (2008). For the good of the group? Exploring group-level evolutionary adaptations using multilevel selection theory. Group Dynamics: Theory, Research, and Practice, 12(1), 17–26.

    Article  Google Scholar 

  • Park, J. H., & Schaller, M. (2005). Does attitude similarity serve as a heuristic cue for kinship? Evidence of an implicit cognitive association. Evolution and Human Behavior, 26(2), 158–170.

    Article  Google Scholar 

  • Park, J. H., Schaller, M., & Van Vugt, M. (2008). Psychology of human kin recognition: Heuristic cues, erroneous inferences, and their implications. Review of General Psychology, 12(3), 215–235.

    Article  Google Scholar 

  • Perugini, M., O’Gorman, R., & Prestwich, A. (2007). An ontological test of the IAT: Self-activation can increase predictive validity. Experimental Psychology, 54(2), 134–147.

    Article  Google Scholar 

  • Perugini, M., Conner, M., & O’Gorman, R. (2011). Automatic activation of individual differences: A test of the gatekeeper model in the domain of spontaneous helping. European Journal of Personality, 25(6), 465–476.

    Article  Google Scholar 

  • Price, G. R. (1972). Extension of covariance selection mathematics. Annals of Human Genetics, 35(4), 485–490.

    Article  Google Scholar 

  • Rachlin, H., & Jones, B. A. (2008). Social discounting and delay discounting. Journal of Behavioral Decision Making, 21(1), 29–43.

  • Roberts, S. G. B., & Dunbar, R. I. M. (2011). The costs of family and friends: An 18-month longitudinal study of relationship maintenance and decay. Evolution and Human Behavior, 32(3), 186–197.

    Article  Google Scholar 

  • Rushton, J. P., & Bons, T. A. (2005). Mate choice and friendship in twins: Evidence for genetic similarity. Psychological Science, 16(7), 555–559.

    Article  Google Scholar 

  • Sheldon, K. M., Sheldon, M. S., & Osbaldiston, R. (2000). Prosocial values and group assortation. Human Nature, 11(4), 387–404.

    Article  Google Scholar 

  • Stewart-Williams, S. (2007). Altruism among kin vs. nonkin: Effects of cost of help and reciprocal exchange. Evolution and Human Behavior, 28(3), 193–198.

    Article  Google Scholar 

  • Strack, F., & Deutsch, R. (2004). Reflective and impulsive determinants of social behavior. Personality and Social Psychology Review, 8(3), 220–247.

    Article  Google Scholar 

  • Tooby, J., & Cosmides, L. (1996). Friendship and the banker’s paradox: Other pathways to the evolution of adaptations for altruism. In W. G. Runciman, J. M. Smith, & R. I. M. Dunbar (Eds.), Evolution of social behaviour patterns in primates and man (pp. 119–143). New York: Oxford University Press.

    Google Scholar 

  • Trivers, R. L. (1971). The evolution of reciprocal altruism. Quarterly Review of Biology, 46(1), 35–57.

  • Walker, R. S. (2014). Amazonian horticulturalists live in larger, more related groups than hunter-gatherers. Evolution and Human Behavior, 35(5), 384–288.

    Article  Google Scholar 

  • West, S. A., Griffin, A. S., & Gardner, A. (2007). Social semantics: Altruism, cooperation, mutualism, strong reciprocity and group selection. Journal of Evolutionary Biology, 20(2), 415–432.

    Article  Google Scholar 

  • Wilson, D. S., & Wilson, E. O. (2007). Rethinking the theoretical foundation of sociobiology. Quarterly Review of Biology, 82(4), 327–348.

  • Wilson, D. S., van Vugt, M., & O’Gorman, R. (2008). Multilevel selection theory and major evolutionary transitions implications for psychological science. Current Directions in Psychological Science, 17(1), 6–9.

    Article  Google Scholar 

  • Workman, L., & Reader, W. (2014). Evolutionary psychology: An introduction (3rd ed.). Cambridge: Cambridge University Press.

    Google Scholar 

  • Yamagishi, T., & Mifune, N. (2008). Does shared group membership promote altruism? Fear, greed, and reputation. Rationality and Society, 20(1), 5–30.

    Article  Google Scholar 

Download references

Acknowledgments

We would like to acknowledge the British Academy for partial funding of this research (grant SG 48011). We would like to thank Brian Meier for supplying an E-Prime IAT template and Justin Park for sharing stimulus materials; Catherine Day, Kirsten Bartlett, Mary-Jane Budd, and Steve Southworth for data collection; and Mitch Callan and Gillian Sandstrom for comments on the manuscript.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Rick O’Gorman.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

O’Gorman, R., Roberts, R. Distinguishing Family from Friends. Hum Nat 28, 323–343 (2017). https://doi.org/10.1007/s12110-017-9292-0

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12110-017-9292-0

Keywords

Navigation