A central tenet of many prominent philosophical and psychological traditions is that personal authenticity facilitates psychological well-being. This idea, however, is at odds with numerous perspectives arguing that it is difficult, if not impossible, to really know one's self, or the true self may not even exist. Moreover, empirical findings suggest that reports of authenticity are often contaminated by positively valenced behavior, further potentially undermining the validity of authenticity measures. Despite these concerns, we argue that subjective feelings of authenticity do uniquely contribute to well-being. Specifically, we argue that the relationship between perceived authenticity and well-being may be understood from a social-cognitive lay theory perspective that we label "true-self-as-guide," that suggests people use these feelings of authenticity as a cue to evaluate whether they are living up to a shared cultural value of what it means to live a good life. We end with a call for future research on the antecedents of perceived authenticity, boundary conditions for the consequences of personal authenticity, and discuss cultural differences in true-self-as-guide lay theories.

Why do many people come to believe that they and others have a true self? We hypothesized that this belief emerges because people routinely rely on essentialist reasoning to understand personal identity and the self. Across eight studies, we found that (a) the features that participants attributed to the true self resembled the features typically attributed to essences (e.g., immutability, informativeness, inherence; Studies 1–4); (b) endorsement of belief in true selves correlated with endorsement of other essentialist beliefs (Study 5); and (c) experimental manipulations of essentialist beliefs in domains other than the self spilled over and affected participants’ endorsement of belief in true selves (Studies 6–8). These findings advance theory on the origins and functions of beliefs about the true self, suggesting that these beliefs are, in part, a specific downstream consequence of the broader tendency to explain phenomena in the world in terms of underlying essences.

The present research addresses the relationship between morally valenced behavior and perceptions of self-knowledge, an outcome that has received little attention in moral psychology. We propose that morally valenced behavior is related to subjective perceptions of self-knowledge, such that people experience lower levels of self-knowledge when they are reminded of their immoral behaviors. We tested this proposition in four studies ( N = 1,177). Study 1 used daily-diary methods and indicates that daily perceptions of self-knowledge covary with daily levels of morally valenced behavior. The final three studies made use of experimental methods and demonstrate that thinking about immoral behaviors attenuates current perceptions of self-knowledge. The predicted relationships and effects generally persist when controlling for self-esteem. Based on our findings, we argue that perceived self-knowledge may play a functional role in moral self-concept maintenance and moral regulatory processes.

Why do many people come to believe that they and others have a true self? We hypothesized that this belief emerges because people routinely rely on essentialist reasoning to understand personal identity and the self. Across eight studies, we found that (1) the features that participants attributed to the true self resembled the features typically attributed to essences (e.g., immutability, informativeness, inherence; Studies 1–4); (2) endorsement of belief in true selves correlated with endorsement of other essentialist beliefs (Study 5); and (3) experimental manipulations of essentialist beliefs in domains other than the self “spilled over” and affected participants’ endorsement of belief in true selves (Studies 6–8). These findings advance theory on the origins and functions of beliefs about the true self, suggesting that these beliefs are, in part, a specific downstream consequence of the broader tendency to explain phenomena in the world in terms of underlying essences.

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