Studying the Downstream Effects of Fact-Checking on Social Media: Experiments on Correction Formats, Belief Accuracy, and Media Trust

Repeated exposure to misinformation not only reduces the accuracy of people’s beliefs, but it also decreases confidence in institutions such as the news media. Can fact-checking—journalism’s main weapon against misinformation—worsen or ameliorate distrust in journalists and the media? To answer this question, we conducted two pre-registered experiments in Chile (total N = 1,472) manipulating message and receiver factors known to regulate the persuasiveness of fact-checks: transparency elements, arousing images, and political alignment. The results of both studies show that, across message formats, fact-checks are similarly effective at reducing people’s misperceptions. However, these positive effects on belief accuracy come at a cost: Compared to control groups, users exposed to political fact-checks trust news less and perceive the media as more biased, especially after reading corrections debunking pro-attitudinal misinformation. We close with a discussion of the theoretical and practical implications of these findings.