The Role of Political Ideology and Open-Minded Thinking Style in the (in)Accuracy of Factual Beliefs

The paper investigates the role of political ideology and an open-minded thinking style (i.e., the tendency to reason based on rules of inference rather than intuitive heuristics) with respect to the accuracy of factual beliefs. In line with political asymmetry theory, we assumed that right-wing beliefs, in contrast to left-wing beliefs, are associated with more inaccurate factual beliefs. We also expected that the open-minded thinking style acts as a buffer against inaccurate factual beliefs among people with right-wing (but not left-wing) political affinities. To test these hypotheses, we conducted three studies (total N = 1120) in which participants holding right- and left-wing beliefs, and displaying differing degrees of the open-minded thinking style (as measured by the Active Open-minded Thinking Style questionnaire), assessed policy-relevant facts congenial to left- as well as right-wing beliefs. The results of the study confirm the hypotheses proposed. The paper’s findings contribute to the ongoing discussion around the ideological underpinnings of (un)biased cognition and the controversies concerning the role of cognitive factors in ideological polarization. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s11109-022-09789-z.