well, value as an a advertising platform isn't the same as political effects on vote choice. maybe! we don't know.
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Replying to @BrendanNyhan
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@BrendanNyhan We do! From back when they used to publish. Tiny tweak to algorithm impacts mood and boosts turnout by hundreds of thousands.2 replies 1 retweet 13 likes -
Replying to @zeynep @BrendanNyhan
Facebook is now a huge part of social-peer information flow. Decades of research says that's how people form/shift opinions.
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Replying to @zeynep
sure in part. but those mood/turnout effects were tiny at individual level. magnitude of FB effects being overstated
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Replying to @BrendanNyhan @zeynep
at least as far as what we know scientifically
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Replying to @BrendanNyhan
The tweaks were tiiiiny, and yet they had measurable impacts. Obviously tiny on purpose--to get p-value without more impact.
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Replying to @zeynep @BrendanNyhan
Voting study tweak was so tiny that blew my mind how big the impact was. Now imagine a year of fake Clinton news, every day.
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Replying to @zeynep
the verified vote effect? .4% - agree remarkable for how weak treatment was but small. again I'm fully on board w/potential effects
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Replying to @BrendanNyhan @zeynep
but want to be clear what is/is not evidence-based
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Replying to @BrendanNyhan
Yes I believe the evidence exists. If you mean we don't know how high it could go? Not sure how to even test that.
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Pre-Facebook research establishes peer/social influence; Facebook era research shows it's that plus reinforces echo chambers.
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