Procedure
The measurement materials for misinformation used in this study follow the recommendations of Pennycook and Binnendyk (). Materials were selected from China’s mainstream fact-checking platform (As shown in Fig. Intervention design flow chartBefore the intervention, participants measured the covariates (demographic, media literacy, and cognitive ability). Perceived credibility and sharing intention were assessed at pre-test, post-test, and 2-weeks follow-up. Participants received 10 posts in the form of Weibo (five true and five false) and evaluated the materials using a five-point Likert scale at each stage. After reading each post, each participant was asked, “Is the post above accurate?” (1 = totally not accurate, 5 = very accurate); “Would you consider sharing this post online?” (1 = totally unwilling to share; 5 = very willing to share). Different misinformation materials were presented to participants at different measurement stages. Participants received approximately 1 USD after completing the intervention. Details about the measurement materials can be seen in Additional file 