The researchers embarked on a study involving 789 U.S. adults to understand how we process misinformation depending on who is telling it and why they are saying it. They specifically examined whether the source (a trusted doctor versus a politician from the reader’s opposing political party) and the “frame”—whether the misinformation was stated as an accident, an intentional lie, or an expression of uncertainty—changed how people perceive credibility and truth. By using a controlled experiment, the team hoped to uncover if our existing biases toward certain professions influence how we digest corrected information.
Before any corrections were issued, the data revealed a clear hierarchy of trust. Participants found doctors significantly more credible than politicians, regardless of the message’s intent. Additionally, sources who expressed uncertainty about a claim were viewed as less credible than those who were certain of their false statements. This suggests that in the court of public opinion, a confident falsehood is often treated as more reliable—or at least more authoritative—than an honest admission of not knowing the facts.
When the corrections were introduced, the findings became more nuanced. The researchers discovered that while “intentional” misinformation (a deliberate lie) caused the sharpest drop in a source’s credibility, the profession of the source didn’t actually change how much their credibility was damaged. In other words, when a doctor or a politician is caught in a lie, their credibility takes a hit, but the collapse in trust happens at a similar rate for both. However, the study failed to find a robust “silver bullet” for correcting misinformation; while intentional lies were clearly punished in the ratings, the method of correction did not drastically change how much people believed new, unrelated pieces of misinformation later on.
A significant theme in the study was the “expectation violation.” When doctors were revealed to be inaccurate, participants felt a greater sense of disappointment or surprise compared to when a politician was caught spreading falsehoods. This tells us something profound about human psychology: we harbor higher standards for professionals we view as inherently trustworthy. When a doctor fails to meet these standards, it is a deeper betrayal of our expectations than the failure of a politician, who may already be viewed through a lens of skepticism.
Despite this heightened disappointment, the “halo effect” of the medical profession proved remarkably sticky. Even after a doctor was exposed for being inaccurate, participants continued to trust them more than politicians when presented with entirely new, uncorrected false claims. This suggests that our initial impressions of a source are incredibly difficult to dismantle. The emotional sting of being let down by a doctor may be real, but it is not enough to immediately strip them of their status as an authority figure in the eyes of the public.
Ultimately, this study serves as a sobering reminder of the limits of fact-checking. While transparency about why misinformation occurred—whether an accident or a lie—can influence how we judge someone’s character, it is less effective at purging the falsehoods from our belief systems. We are wired to lean on our established biases, clinging to credibility labels long after they have been proven unreliable. The research highlights that as long as we hold certain types of sources in high regard, we will likely remain vulnerable to their influence, even when they are not telling us the truth.