New preprint: Community Notes are good at correcting posts. But do they change the people behind them? We tracked 19,854 corrected accounts on X — 11.9M posts, 4 weeks before/after each correction. The answer: it depends who you are. @oii.ox.ac.uk 📎 arxiv.org/abs/2608.27526

Community corrections have divergent downstream effects across corrected accounts

Community-based fact-checking can reduce the spread of annotated misleading posts, but whether it produces lasting behavioral change among corrected authors remains unclear. Here, we conduct a large-s...

arxiv.org

🚨Our new paper on generative AI and researcher productivity is now out in @pnas.org A 🧵 www.pnas.org/doi/10.1073/...

🚨JOIN the Civic Discourse Mediator Competition🚨 In 1st week of August, create & test a prompt-based AI mediator that helps people have more thoughtful, productive conversations about important public issues. Win $400! Get started here: forms.gle/HkbhEk4hELQE...

🚨 A few months ago, a paper published in Science reported that “LLM adoption is associated with a large increase in researchers’ scientific output.” In a comment released today, we show that the reported effects are driven by a methodological issue in the empirical design. arxiv.org/abs/2605.17979

Hello -- I'm looking for active X Community Notes contributors who want to talk to me for a piece on @indicator.media. Happy to use their pseudonym in the story. Please share with your networks!

New study finds that Community Notes on Twitter/X reduced reposting of misleading posts by about 61% after the note became visible, meaning users were much less likely to reshare content once they saw a fact-check. www.nature.com/articles/s41...

Community-based fact-checking reduces the spread of misleading posts on X (formerly Twitter) - Nature Communications

Community-based fact-checking is increasingly adopted by social media platforms, but its real-world impact remains unclear. Here, the authors show that community notes can reduce the spread of mislead...

nature.com

Community-based fact-checking works Community notes reducethe subsequent spread of misleading posts by 61% and increase the odds that users delete their false posts by 94% But they appear too late to stop the viral stage of the diffusion making the effect modest. www.nature.com/articles/s41...

🆕La Lettre du CEPII "L’émergence de l’extrême droite façonne-t-elle le positionnement des partis traditionnels sur la question migratoire?" d'Anthony Edo, @thomasrenault.bsky.social et Jérôme Valette. www.cepii.fr/CEPII/fr/pub... #extremedroite #migration #immigration #econsky #elections

NEW on @indicator.media: We launched a tracker to monitor who gets the most "@grok-is-this-true" replies on a given day on X. indicator.media/p/who-gets-g...

Grok fact-checks our paper on Grok fact-checking - and it approves!

David Rand@dgrand.bsky.social · 8mo ago

🚨New WP "@Grok is this true?" We analyze 1.6M factcheck requests on X (grok & Perplexity) 📌Usage is polarized, Grok users more likely to be Reps 📌BUT Rep posts rated as false more often—even by Grok 📌Bot agreement with factchecks is OK but not great; APIs match fact-checkers osf.io/preprints/ps...

🚨New WP "@Grok is this true?" We analyze 1.6M factcheck requests on X (grok & Perplexity) 📌Usage is polarized, Grok users more likely to be Reps 📌BUT Rep posts rated as false more often—even by Grok 📌Bot agreement with factchecks is OK but not great; APIs match fact-checkers osf.io/preprints/ps...

In a new working paper, @thomasrenault.bsky.social, @mmosleh.bsky.social & @dgrand.bsky.social break down how Grok is being used to fact-check, and on whom. osf.io/preprints/ps...

New on @indicator.media: "@grok is this true" was the single most frequent reply tagging X's AI chatbot in the six months following its launch.

@Grok is this true: How X’s chatbot performs as a fact-checking tool

New research explores whether the chatbot might replace the crowdsourced fact-checking program – and what that might mean for getting to the truth on X

indicator.media

Comment l’irruption du FN a bouleversé le jeu politique (A la marge) blogs.alternatives-economiques.fr/anota/2025/1...

Comment l’irruption du FN a bouleversé le jeu politique

L’extrême-droite a eu une place extrêmement marginale dans le paysage politique des décennies qui ont immédiatement suivi la Seconde Guerre mondiale. Celui-ci était dominé par deux blocs, un bloc de g...

blogs.alternatives-economiques.fr

The Center for Information Technology Policy at Princeton invites applications for a Postdoctoral Fellow to work with an interdisciplinary team (me, @bstewart.bsky.social, and @manoelhortaribeiro.bsky.social). Link: puwebp.princeton.edu/AcadHire/app... Please apply by THIS SUNDAY, Dec. 14!

Apply for funding to work with me and Gord at Cornell!

Gordon Pennycook@gordpennycook.bsky.social · last yr.

Interested in doing a postdoc with me & @dgrand.bsky.social? Consider applying to Cornell's Klarman Fellowship: as.cornell.edu/research/kla... It involves a competitive internal application process, but it's 3 years of funding @$80k/year Please email me/Dave if you're interested! Oct 15th deadline

3 months into Meta’s pivot to Community Notes, the company has yet to share any data about its crowdsourced moderation feature. With help from three @indicator.media readers in the pilot, I tried to piece together how it’s going: indicator.media/p/a-first-lo...

A first look at Meta’s Community Notes

Zuckerberg's pivot to crowdsourcing features three jacked dudes, a flirty farmer, and some useful notes

indicator.media

🚨In PNAS🚨 The right often accuses fact-checkers of political bias But we analyzed Community Notes on Musk's X and found posts flagged as "misleading" are 2.3x more likely to be written by Reps than Dems! The issue is Reps sharing misinformation, not fact-checker bias... www.pnas.org/doi/10.1073/...

🚨 New in PNAS 🚨 Posts by Republicans are 2.3 times more likely to be flagged as misleading than those by Democrats on X's Community Notes. A 🧵 pnas.org/doi/epub/10.... (Open Access)

Interested in how people talk to each other online? Care about causal inference and/or NLP? Want to design and implement field experiments? Come do a PhD with Dominik Hangartner, me, and a bunch of awesome people at IPL in Zurich: jobs.ethz.ch/job/view/JOP...

Many thanks to lead author @thomasrenault.bsky.social who does amazing work on Community Notes and other topics; and the always-wonderful coauthor @mmosleh.bsky.social For more of my group's work on misinformation, check out this doc: docs.google.com/document/d/1...

Misinformation-related papers

Papers related to misinformation from David Rand and Gordon Pennycook’s research team Key papers The Psychology of Fake News TiCS 2021 [Tweet thread] [15 minute video summary] Durably reducing conspi...

docs.google.com

We examine all English notes 1/23-6/24. More notes are proposed on tweets written by Reps than Dems. The partisan diff is MUCH bigger when restricting to "helpful" (ie ~unbiased) notes: 63% on Reps, 37% on Dems. The "vox populi" on X has spoken and concluded that Reps share more misinfo than Dems!

Accusations of bias against conservatives drove Musk to buy Twitter- then gut fact-checking and up Community Notes. This month, Zuckerberg did the same at Meta. But greater sanctioning of conservatives could just be the result of conservatives sharing more misinformation bsky.app/profile/dgra...

David Rand@dgrand.bsky.social · 2y ago

🚨In Nature🚨 Meta is dropping fact-checking to avoid anti-conservative bias- but is there actually evidence of bias? We this test empirically & find that conservatives * ARE suspended more * BUT share more misinfo So suspension isn't necessarily evidence of bias www.nature.com/articles/s41...

🚨New WP🚨 Remember Musk+Zuck+Trump+Jordan etc crying fact-checker bias b/c Reps were flagged more than Dems? We analyzed Community Notes on Musk's X and guess what: posts flagged as "misleading" are 67% more likely to be written by Reps! The issue is Reps, not fact-checkers... osf.io/preprints/ps...

🚨OpEd+data: Meta is out of step with public opinion🚨 Zuck cut moderation b/c he said people no longer want it. But he's wrong! We polled 1k Americans and most people, including majority of Reps: i) want content moderation ii) don't want Community Notes w/o fact-checkers thehill.com/opinion/tech...