The primacy of trust within romantic relationships: Evidence from conjoint analysis of HEXACO-derived personality profiles |
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Authors: | Justin K Mogilski Jennifer Vrabel Virginia E Mitchell Lisa LM Welling |
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Institution: | 1. Department of Psychology, University of South Carolina Salkehatchie, 807 Hampton Street, Walterboro, SC 29488, USA;2. Department of Psychology, Oakland University, Pryale Hall, 654 Pioneer Drive, Rochester, MI 48309, USA |
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Abstract: | Mate preference research often focuses on traits that indicate a romantic partner's personal worth (e.g., their physical attractiveness, resource potential) rather than their tendency to leverage that worth for mutual vs. zero-sum benefit (i.e., their trustworthiness). No one has assessed the contribution of trustworthiness to perceived mate value relative to other personality dimensions. Here we examined the desirability of a partner's trustworthiness relative to five other personality indicators of mate quality during initial partner selection. Participants (n = 918) ranked multivariate partner profiles constructed from the HEXACO model of personality (i.e., honesty-humility, emotionality, extraversion, agreeableness, conscientiousness, and openness to experience) and provided partner ratings for each trait. Using conjoint analysis, we found that honesty-humility influenced participants' ranking decisions substantially more than each other characteristic (all Cohen's ds > 0.62). This was true for both long- (i.e., committed) and short-term (i.e., purely sexual) partner evaluations, though honesty-humility was relatively more important for long- vs. short-term contexts. There were no sex differences. A different pattern, including sex differences, emerged for partner ratings. Based on these findings, we hypothesize that the challenge of avoiding romantic interpersonal predation may have been a relatively stronger selection pressure during the evolution of human mate preference than has the challenge of identifying other valuable partner traits. |
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Keywords: | Corresponding author Trust Personality HEXACO Romantic relationships Conjoint analysis Sex differences |
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