In Similarity We Trust: Like-Mindedness,Rather Than Just the Type of Moral Judgment,Drives Inferences of Trustworthiness

Abstract

Trust plays a central role in social interactions. Recent research has highlighted the importance of others’ moral decisions in shaping trust inference: individuals who reject sacrificial harm in moral dilemmas (which aligns with deontological ethics) are generally perceived as more trustworthy than those who condone sacrificial harm (which aligns with utilitarian ethics). Across five studies (N = 1,234), we investigated trust inferences in the context of iterative moral dilemmas, which allow individuals to not only make deontological or utilitarian decisions, but also harm-balancing decisions. Our findings challenge the prevailing perspective: While we did observe effects of the type of moral decision that people make, the direction of these effects was inconsistent across studies. In contrast, moral similarity (i.e., whether a decision aligns with one’s own perspective) consistently predicted increased trust. Our findings suggest that trust is not just about adhering to specific moral frameworks but also about shared moral perspectives.

Keywords

trust cooperation moral psychology trolley dilemmas iterative decision-making

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