True and Moral by Repetition: Unveiling the Impact of Exposure on Positive Stereotypes Perception

Despite their apparent benevolence, positive stereotypes have negative effects on person and group perception. However, little is known about how exposure can intensify these negative consequences. In two pre-registered experiments (total N = 240) we investigated the effect of exposure on believability and moral condemnation of positive stereotypes. In Experiment 1, participants rated the truth value of positive stereotypes, which were either previously encountered or not during an exposure phase. Repeated positive stereotypes were perceived as more true than unrepeated ones, indicating a truth effect. In Experiment 2, we replicated the truth effect and further found that exposure to stereotypes reduced their moral condemnation, indicating a moral-repetition effect. Extending the truth effect and moral-repetition effect research to positive stereotypes, our findings emphasize the need to raise awareness of the impact of exposure on reinforcing the believability and moral condemnation of stereotypical beliefs.