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Understanding the features and effectiveness of randomized controlled trials in reducing COVID-19 misinformation: a
Arman Miri1, Akram Karimi-Shahanjarini1,2, Maryam Afshari1
1Department of Public Health, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran.
Abstract:
This systematic review aimed to assess the features and effectiveness of individual-level randomized controlled trials targeting COVID-19 misinformation. The selection process included rigorous criteria, resulting in the inclusion of 24 individual studies from 21 papers. The majority of studies were conducted in high-income countries, with the accuracy/credibility of information as the primary outcome. Debunking and boosting interventions were the most common interventions while nudging and content labeling interventions were examined in a few studies. This study highlights that further research is needed to enhance the effectiveness of boosting strategies and to explore the impact of combined interventions. Addressing bias concerns and standardizing intervention assessment measures will contribute to the development of evidence-based approaches in this critical area.
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