Série de conférences – Andrew Guess

Le Centre pour l’étude de la citoyenneté démocratique présente :

How do social media algorithms affect platform use, attitudes and behavior?
Andrew Guess (Princeton, États-Unis)

Quand : 6 octobre, 2025, 15h – 17h
Ou :  Université de Montréal, Pavillon Lionel-Groulx – C-2059, 3150 rue Jean-Brillant Montréal (Québec) H3T 1N8

Zoom link :
https://umontreal.zoom.us/j/81870106921?pwd=WDJIdHprOGVzakFMMFcrRE9IblV4Zz09
Meeting ID : 818 7010 6921
Password : 853729

Policymakers and the public are increasingly interested in the effects of social media algorithms on society. In this talk, I outline some of the challenges this topic poses to researchers. I then introduce an approach to studying these systems’ effects on individuals: a large-scale collaboration with Meta during the 2020 U.S. presidential campaign. Focusing on experiments designed to change how posts were ranked in users’ feeds, I explore how our treatments altered the types of content users saw. Among the categories we analyze are political news, posts from like-minded (vs. cross-cutting) sources, and posts from sources deemed untrustworthy. Finally, I discuss the effects of our treatments on individuals’ political behavior, knowledge, and attitudes.

Cette série de conférences est financée par le Centre pour l¹étude de la Citoyenneté démocratique lui-même financé par le Fonds de recherche du Québec – Société et culture (FRQSC).