Lay Personality Theories in Interactive Decisions: Strongly Held, Weakly Supported

Does dispositional preference for solitude predict better psychological outcomes during times of social distancing? Beliefs and reality

OBJECTIVE

People value solitude for themselves. Yet little is known about how people perceive dispositional preference for solitude in others. Does dispositional preference for solitude represent a protective factor from psychological distress during times of social distancing? And do laypeople have accurate beliefs about the role of preference for solitude?

METHOD

To answer these questions, we conducted four studies (three preregistered, Ntotal  = 1418) at the early and a later stage of the COVID-19 pandemic using experimental, longitudinal, and experience sampling designs.

RESULTS

People expected targets with a higher solitude preference to be more resilient (e.g., less lonely, more satisfied with life) during social distancing, and consequently prioritize them less when allocating supportive resources for maintaining social connections (Studies 1 and 2). Compared to these beliefs, the actual difference between individuals with higher versus lower solitude preference was smaller (Study 2) or even negligible (Study 3). Did people form more calibrated beliefs two years into the pandemic? Study 4 suggested no.

CONCLUSIONS

Together, these studies show that people overestimate the role of preference for solitude in predicting others' psychological experience. As a result, solitude-seeking individuals may miss out on supportive resources, leading to higher risks for mental health issues.

The Effects of Partner Extraversion and Agreeableness on Trust

Existing research has documented the social benefits (i.e., higher popularity and liking) of extraversion and agreeableness. Do these positive reputational consequences extend to social dilemma situations that require trust? We found that people do not trust extraverts more than introverts. Instead, people's trust decisions are guided by their partner's level of agreeableness. In a trust game (Studies 1 and 2), individuals were more likely to trust a partner who was described as agreeable (vs. disagreeable); and, in a laboratory study of work groups, participants trusted more (vs. less) agreeable group members (Study 3). Individuals anticipated others' preferences for agreeable partners and tried to come across as more agreeable, but not more extraverted, in social dilemmas (Study 4). These findings suggest that the social benefits of agreeableness (but not extraversion) extend to social interactions involving trust and highlight the importance of target personality traits in shaping trust decisions.

In Your Face(t)-Personality Traits Interact With Prototypical Personality Faces in Economic Decision Making

In everyday life, assumptions about our peers' as well as our own personality shape social interactions. We investigated whether self-rated personality and inferences drawn from partners' faces influence economic decisions. Participants (N = 285) played the trust game in the role of the trustor as well as the ultimatum game in the role of the proposer and interacted with trustees and receivers represented by prototypical personality faces. Participants also evaluated both their own traits and the personality of the faces. In the trust game, trustees represented by faces rated higher on agreeableness yielded higher transferred amounts. This effect was more pronounced for trustors low on dispositional trust, whereas trustors high on dispositional trust did not relate their decisions to the faces. Trustees represented by faces rated higher on conscientiousness yielded higher transferred amounts only for trustors high on dispositional anxiety. In the ultimatum game, receivers represented by faces rated higher on conscientiousness yielded lower offers only for proposers high on dispositional assertiveness. These results extend previous findings on the inferences drawn from facial features and the influence of personality on decision making. They highlight the importance of considering the personality of both interaction partner, as well as potential interactions of players' traits.