Intellectual Humility and Belief Extremity: Evidence for Curvilinearity?

Because an intellectually humble person is neither diffident nor arrogant in their views, intellectual humility (IH) is considered a virtuous mean. Yet, evidence for the virtuous mean account is mixed, with some studies finding evidence for it and some studies finding evidence against it. To clarify these ambiguities, we examined the curvilinear relations between multiple IH conceptualizations and belief strength across political, religious, and irreligious beliefs. In a secondary analysis of more than 4,000 participants, there was evidence for the virtuous mean account for political beliefs, evidence against it for religious beliefs, and little evidence for irreligious beliefs. Altogether, these results raise the possibility that the virtuous mean account of IH is not as generalizable as originally presumed. Thus, instead of asking whether IH is a virtuous mean, future research should ask when, why, and how IH is a virtuous mean for some beliefs and not for others.