fact-checking
Definition
Fact-checking refers to the process of evaluating the veracity of information, typically news content or political statements, to determine its accuracy and correct misinformation. In crowdsourcing approaches, this process is distributed across laypeople rather than assigned exclusively to professional experts, with aggregate judgments from politically diverse groups shown to closely align with those of professional fact-checkers. The success of such crowdsourced fact-checking depends on three interacting factors: the degree of cognitive dissonance a fact-check creates relative to a recipient's prior beliefs, the recipient's trust in the sources providing the fact-check, and the size of the crowd producing it. These factors are frequently in tension within polarized social media environments, where ingroup sources command greater trust but are less likely to supply dissonant corrections, while outgroup sources generate more dissonance but inspire less credibility.
Sources: Pretus et al. (2024)
Related Terms
- misinformation (1 shared article)
- crowdsourcing (1 shared article)
- trust (1 shared article)
- network analysis (1 shared article)
Applications
Fact-checking and Partisan Misinformation
Crowdsourced fact-checking has shown particular promise as a response to partisan misinformation because standard debunking efforts lose effectiveness among far-right partisans, who share the largest share of online misinformation. Collective accuracy judgments are well received even by extreme partisans, who reduce their sharing of partisan misinformation in proportion to the number of people who rate a given post as misleading.
Sources: Pretus et al. (2024)
Fact-checking and Crowdsourcing
Crowdsourcing distributes the work of fact-checking across broad communities of internet users, allowing laypeople's independent judgments, when aggregated, to accurately identify unreliable news sources and false headlines. Independent response collection is essential here: when fact-checkers are exposed to one another's ratings, social influence effects degrade collective accuracy, a problem that scales with crowd size if independence is not maintained.
Sources: Pretus et al. (2024)
Fact-checking and Trust
Trust in the source providing a fact-check is a core determinant of whether that fact-check produces belief updating in the recipient. In polarized environments, users are more likely to accept corrections from sources within their ideological proximity, yet those same sources are less inclined to supply the dissonant information that effective fact-checking requires, creating a structural tension that crowdsourcing interventions must account for.
Sources: Pretus et al. (2024)



