Impact of a Mock-up Fact-checking Extension on HPV Vaccine Misinformation: A Survey Experiment

The intervention in this survey experiment involves mobile Weibo post screenshots equipped with a mock-up Chinese fact-checking browser extension. All screenshots are based on actual Weibo posts. The fact-checking content is generated by a Large Language Model (LLM), tailored to relevant knowledge and prompts, and subsequently validated by experts. The Weibo posts cover a range of popular topics known to contain misinformation, including infertility, safety, vaccine ingredients, high-risk cervical cancer types, regular check-ups, transmission routes, and others.