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Mathieu Lavigne holds a Ph.D. in Political Science from McGill University. He specializes in political communication, political behavior, public opinion, Canadian politics, and quantitative methods. His research focuses on the health of the political information environment, including mis- and disinformation, political microtargeting, perceptions of election integrity, trust, and political polarization. He has conducted research using observational and experimental survey data, news content, web browsing data, and social media data.
Lavigne previously served as a SSHRC postdoctoral fellow in the Program in Quantitative Social Science at Dartmouth College. He is leading the Analytical Team at the Media Ecosystem Observatory at McGill University. His research has been published in Party Politics, the Journal of Elections, Public Opinion, and Parties, the Harvard Kennedy School Misinformation Review, the Canadian Journal of Political Science, the Elgar Encyclopedia of Technology and Politics, and the IPSA Companion to Political Science. He is the co-author of multiple public-facing reports and provides commentary on misinformation, polarization, and the information environment in Canadian media outlets.
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McGill and UofT researchers reveal 100 accounts fuel 68% of conspiracy posts on Canadian social media, eroding trust despite low belief rates.
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