In a series of experiments involving beliefs and misinformation beliefs, we find that individuals who are prompted with a counterfactual mindset are significantly more likely to change their existing beliefs when presented with evidence that contradicts their beliefs. While research finds that beliefs that are considered part of one's identity are highly resistant to change in the face of evidence that challenges these beliefs, four experiments provide evidence that counterfactual generation causes individuals to adjust beliefs and correct misinformation beliefs in response to contradicting evidence. Indeed, we find that a counterfactual mindset was effective in promoting incorporation of accurate facts and causing individuals to revise misinformation beliefs about COVID vaccination safety for a large sample of individuals who have rejected COVID vaccinations. Finally, the results of the psychophysiological experiment reveal that counterfactual generation alters decision makers' search strategies, increases their cognitive arousal in response to evidence that challenges their beliefs, and increases their desire to seek out disconfirming evidence. Overall, the four experiments indicate that counterfactual generation can effectively activate mindsets that increase individuals' willingness to evaluate evidence that contradicts their beliefs and adjust their beliefs in response to evidence.
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