Journal of Personality and Social © 2010 American Psychological Association 2010, Vol. 99, No. 1, 120–132 0022-3514/10/$12.00 DOI: 10.1037/a0018188

The Mating Sociometer: A Regulatory Mechanism for Mating Aspirations

Phillip S. Kavanagh and Sarah C. Robins Bruce J. Ellis University of Canterbury University of Arizona

Two studies (Ns ϭ 80 and 108) tested hypotheses derived from Kirkpatrick and Ellis’s (2001) extension and application of sociometer theory to mating aspirations. Experiences of –acceptance by attractive opposite-sex confederates were experimentally manipulated, and the impact of these manip- ulations on self-esteem, mating aspirations, and friendship aspirations was assessed. Results indicated that social rejection–acceptance by members of the opposite sex altered mating aspirations; that the causal link between social rejection–acceptance and mating aspirations was mediated by changes in state self-esteem; and that the impact of social rejection–acceptance by members of opposite sex was specific to mating aspirations and did not generalize to levels of aspiration in approaching potential same–sex friendships. This research supports a conceptualization of a domain-specific mating sociometer, which functions to calibrate mating aspirations in response to experiences of romantic rejection and acceptance.

Keywords: sociometer theory, evolutionary psychology, self-esteem, social rejection, mate choice

Supplemental materials: http://dx.doi.org/10.1037/a0018188.supp

One of the most striking features of human evolution is its ating with and gaining acceptance from group members who are intense group orientation. Available evidence suggests that hu- likely to generate fitness benefits, and selectively avoiding or mans evolved in small bands that ranged in number from 50 to 100 eliminating group members who represent fitness costs (see espe- members (Tooby & DeVore, 1987). Intense group living meant cially Kurzban & Leary, 2001). that the social arena and relationships became an important locus Arrays of information-processing and emotional–motivational of both fitness opportunities and fitness costs. All group members, systems are needed to solve these adaptive problems effectively. however, do not equally experience such opportunities and costs. The current research investigates the role of the self-esteem system A fact of group life is that members differ in value (i.e., in the in mediating relations between experiences of acceptance or re- fitness benefits and costs that they can potentially confer or inflict jection by members of the opposite sex and setting aspiration on others). Through selective formation and maintenance of social levels in approaching new relationships. relationships, individuals can potentially maximize the benefits Although people often idealize and desire highly attractive and minimize the costs of group living. Consequently, members of partners, actual mate selection processes are constrained by a all social species face the critical adaptive problems of discrimi- number of factors, including availability of potential mates; per- nating among conspecifics who differ in value, selectively affili- sonal histories of acceptance and rejection by mates (Kirkpatrick & Ellis, 2001; Todd, 2007); and associated self-assessments of attractiveness, popularity, and other dimensions of mate value (Penke, Todd, Lenton, & Fasolo, 2008; Regan, 1998a). Mate Phillip S. Kavanagh and Sarah C. Robins, Department of Psychology, selection processes also involve meeting minimum standards University of Canterbury, Christchurch, New Zealand; Bruce J. Ellis, (Regan, 1998b) and fitting “budget” constraints (Li, Bailey, Ken- Division of Family Studies and Human Development, University of Ari- rick, & Linsenmeier, 2002; Li & Kenrick, 2006). Given these zona. realities, how do individuals set aspiration levels in approaching This research was conducted in the Department of Psychology at the University of Canterbury, Christchurch, New Zealand, and made possible and developing new sexual and romantic relationships? Using an with funding from that department and the university. Study 1 was con- evolutionary framework, Penke et al. (2008) provided an overview ducted by Sarah C. Robins in partial fulfillment of a master of science of how self-assessments can guide human mating decisions. A key degree, and Study 2 was part of a series of studies conducted by Phillip S. component within this framework is the mating sociometer (Kirk- Kavanagh as part of the requirements for a doctor of philosophy degree. patrick & Ellis, 2001, 2006). Bruce J. Ellis was the primary faculty advisor for both studies. Philip S. Kavanagh thanks and acknowledges the Department of Psychology at the University of Canterbury for the Doctoral Scholarship and the University Sociometer Theory of Canterbury for the additional Research Award, which enabled him to conduct the research. A functional model of the self-esteem system—sociometer Correspondence concerning this article should be addressed to Phillip S. theory—has been proposed by Mark Leary and colleagues (Leary Kavanagh, who is now at the School of Health and Human Services, & Baumeister, 2000; Leary & Downs, 1995; Leary, Tambor, Central Queensland University, Bruce Highway, Rockhampton QLD 4702, Terdal, & Downs, 1995). Leary et al. noted that few have asked the Australia. E-mail: [email protected] fundamental questions of (a) what exactly is self-esteem? and (b)

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