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Articles by Devra Moehler
Untrustworthy sources on Facebook and Instagram in 2020: Concentrated exposure but no attitudinal effects
Abstract INTRODUCTION RESULTS DISCUSSION MATERIALS AND METHODS Acknowledgments Supplementary Materials REFERENCES Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Despite concern about exposure to content from untrustworthy sources on social media, little is known about the frequency or effects of exposure to their content.
How deceptive online networks reached millions in the US 2020 elections
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Abstract Deceptive online networks are coordinated efforts that use identity deception to pursue strategic political or financial goals. During the US 2020 elections, these networks reached at least 37 million Facebook and 3 million Instagram users, representing 15% and 2% of the platforms’ active US adult users, respectively. Only 3 networks out of 49—1 network with explicitly political aims and 2 that appeared to use politics as a lure for profit—were responsible for over 70% of users reached.
By Ruth E. Appel, Jennifer Pan, Yiqing Xu, Ben Nimmo, Daniel Thomas, Hunt Allcott, Pablo Barberá, Adriana Crespo-Tenorio, Drew Dimmery, Deen Freelon, Matthew Gentzkow, Sandra González-Bailón, Andrew Guess, Shanto Iyengar, David Lazer, Neil Malhotra, Devra Moehler, Brendan Nyhan, Jaime E. Settle, Emily Thorson, Rebekah Tromble, Carlos Rivera, Magdalena E. Wojcieszak, Chad Kiewiet de Jonge, Annie Franco, Winter Mason, Natalie Jomini Stroud, Joshua Tucker, Beixian Xiong
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Nature
Verified
The effects of political advertising on Facebook and Instagram before the 2020 US election - Nature Human Behaviour
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Abstract We study the effects of social media political advertising by randomizing subsets of 36,906 Facebook users and 25,925 Instagram users to have political ads removed from their news feeds for 6 weeks before the 2020 US presidential election. We show that most presidential ads were targeted towards parties’ own supporters and that fundraising ads were the most common.
By Hunt Allcott, Matthew Gentzkow, Ro’ee Levy, Adriana Crespo-Tenorio, Natasha Dumas, Winter Mason, Devra Moehler, Pablo Barberá, Taylor Brown, Juan Cisneros Verified, Drew Dimmery, Deen Freelon, Sandra González-Bailón, Andrew Guess, David Lazer, Neil Malhotra, Sameer Nair-Desai, Brendan Nyhan, Jennifer Pan, Jaime E. Settle, Emily Thorson, Rebekah Tromble, Carlos Rivera, Benjamin Wittenbrink, Magdalena E. Wojcieszak, Shiqi Yang, Annie Franco, Natalie Jomini Stroud, Joshua Tucker, Saam Zahedian, Chad Kiewiet de Jonge
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Nature
Verified
Author Correction: Like-minded sources on Facebook are prevalent but not polarizing - Nature
Correction to: Nature https://doi.org/10.1038/s41586-023-06297-w Published online 27 July 2023 In the version of this article initially published, the variable described in Supplementary Table 36 as measuring Facebook “strikes” for violations of content policies against “Coordinated Inauthentic Behavior” (CIB) is inaccurate and does not reflect enforcement of the actual CIB policy, which is not a content-level policy. We therefore removed this row from Supplementary Table 36.
Like-minded sources on Facebook are prevalent but not polarizing - Nature
Abstract Many critics raise concerns about the prevalence of ‘echo chambers’ on social media and their potential role in increasing political polarization. However, the lack of available data and the challenges of conducting large-scale field experiments have made it difficult to assess the scope of the problem1,2.
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