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Jenny Allen

@jennyallen

Assistant Professor of Technology, Operations, and Statistics @ NYU Stern Interested in Computational Social Science, Digital Persuasion, and Wisdom of Crowds

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20.09.2023
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Latest posts by Jenny Allen @jennyallen

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NYU is hiring two postdocs at the Center for Social Media, AI & Politics:
csmapnyu.org/jobs

And a grant manager in Sociology with the Social Science Research Hub:
uscareers-nyu.icims.com/jobs/15327/g...

I'm part of both groups--please share with anyone who is interested!

26.02.2026 03:13 ๐Ÿ‘ 37 ๐Ÿ” 41 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Last week the story was that TikTok censored anti-Trump/ICE/Pretti videos after the U.S. ownership change. We investigated with a large set of US TikTok data and found some interesting results, short thread...

04.02.2026 17:52 ๐Ÿ‘ 215 ๐Ÿ” 90 ๐Ÿ’ฌ 6 ๐Ÿ“Œ 16

Microsoft Research NYC is hiringย a researcher in the space of AI and society!

29.01.2026 23:27 ๐Ÿ‘ 62 ๐Ÿ” 40 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 2
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For Digital Mass Persuasion, Exposure Matters More Than Persuasiveness If you are interested in understanding the mass persuasive impact of digital media content you should generally pay more attention to content exposure than to its persuasiveness.

A very interesting data-rich analysis of persuasion on digital media by @benmtappin.bsky.social. Recommend!

open.substack.com/pub/benmtapp...

22.12.2025 13:08 ๐Ÿ‘ 15 ๐Ÿ” 4 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Is Joe Rogan really just a voice of the right? Our new @csmapnyu.org piece for @goodauth.bsky.social shows heโ€™s just as much a space for the left and the center, too. A look inside todayโ€™s surprisingly complicated podcast information ecosystem. ๐ŸŽ™๏ธ

goodauthority.org/news/podcast...

17.12.2025 16:39 ๐Ÿ‘ 26 ๐Ÿ” 13 ๐Ÿ’ฌ 5 ๐Ÿ“Œ 4
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Research Intern - Computational Social Science | Microsoft Careers Research Interns put inquiry and theory into practice. Alongside fellow doctoral candidates and some of the world's best researchers, Research Interns learn, collaborate, and network for life. Researc...

We're hiring interns in the Computational Social Science group at Microsoft Research NYC!

If you're interested in designing AIโ€‘based systems and understanding their impact at both individual and societal scales, apply here by Jan 9, 2026: apply.careers.microsoft.com/careers/job/...

15.12.2025 16:33 ๐Ÿ‘ 21 ๐Ÿ” 18 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
We are seeking a Fellow to lead cutting-edge research on short-form video content and its societal implications.

Bridging the gap between computer vision, causal inference, and computational social science, the Fellow will focus on the large-scale analysis of TikTok data (using an existing, massive dataset).

The position involves developing novel multimodal methods to understand how short-form algorithmic content shapes public opinion, political polarization, and online culture.

This is a unique opportunity to work at the forefront of the field, combining rigorous social science research designs with state-of-the-art computational techniques.

We are seeking a Fellow to lead cutting-edge research on short-form video content and its societal implications. Bridging the gap between computer vision, causal inference, and computational social science, the Fellow will focus on the large-scale analysis of TikTok data (using an existing, massive dataset). The position involves developing novel multimodal methods to understand how short-form algorithmic content shapes public opinion, political polarization, and online culture. This is a unique opportunity to work at the forefront of the field, combining rigorous social science research designs with state-of-the-art computational techniques.

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!

09.12.2025 21:34 ๐Ÿ‘ 23 ๐Ÿ” 18 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 4
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Research Intern - Computational Social Science | Microsoft Careers Research Interns put inquiry and theory into practice. Alongside fellow doctoral candidates and some of the world's best researchers, Research Interns learn, collaborate, and network for life. Researc...

Want to be an intern at Microsoft Research in the Computational Social Science group in NYC (Jake Hofman, David Rothschild, Dan Goldstein)

Follow this link and do your thing! Deadline approaching soonish!

apply.careers.microsoft.com/careers/job/...

05.12.2025 23:35 ๐Ÿ‘ 48 ๐Ÿ” 42 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 2
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New in Science: Reranking partisan animosity in algorithmic social media feeds alters affective polarization www.science.org/doi/10.1126/...

Key from @jennyallen.bsky.social @jatucker.bsky.social: (1) important new paradigm (2) but not clear why results differ
www.science.org/doi/full/10....

01.12.2025 15:38 ๐Ÿ‘ 33 ๐Ÿ” 5 ๐Ÿ’ฌ 4 ๐Ÿ“Œ 0
Today, social media platforms hold the sole power to study the effects of feed-ranking algorithms. We developed a platform-independent method that reranks participantsโ€™ feeds in real time and used this method to conduct a preregistered 10-day field experiment with 1256 participants on X during the 2024 US presidential campaign. Our experiment used a large language model to rerank posts that expressed antidemocratic attitudes and partisan animosity (AAPA). Decreasing or increasing AAPA exposure shifted out-party partisan animosity by more than 2 points on a 100-point feeling thermometer, with no detectable differences across party lines, providing causal evidence that exposure to AAPA content alters affective polarization. This work establishes a method to study feed algorithms without requiring platform cooperation, enabling independent evaluation of ranking interventions in naturalistic settings.

Today, social media platforms hold the sole power to study the effects of feed-ranking algorithms. We developed a platform-independent method that reranks participantsโ€™ feeds in real time and used this method to conduct a preregistered 10-day field experiment with 1256 participants on X during the 2024 US presidential campaign. Our experiment used a large language model to rerank posts that expressed antidemocratic attitudes and partisan animosity (AAPA). Decreasing or increasing AAPA exposure shifted out-party partisan animosity by more than 2 points on a 100-point feeling thermometer, with no detectable differences across party lines, providing causal evidence that exposure to AAPA content alters affective polarization. This work establishes a method to study feed algorithms without requiring platform cooperation, enabling independent evaluation of ranking interventions in naturalistic settings.

New paper in Science:

In a platform-independent field experiment, we show that reranking content expressing antidemocratic attitudes and partisan animosity in social media feeds alters affective polarization.

๐Ÿงต

01.12.2025 07:59 ๐Ÿ‘ 153 ๐Ÿ” 67 ๐Ÿ’ฌ 4 ๐Ÿ“Œ 3
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๐ŸšจOut in PNAS๐Ÿšจ
Examining news on 7 platforms:
1)Right-leaning platforms=lower quality news
2)Echo-platforms: Right-leaning news gets more engagement on right-leaning platforms, vice-versa for left-leaning
3)Low-quality news gets more engagement EVERYWHERE - even BlueSky!
www.pnas.org/doi/10.1073/...

14.11.2025 14:35 ๐Ÿ‘ 219 ๐Ÿ” 106 ๐Ÿ’ฌ 11 ๐Ÿ“Œ 8

Now in PNAS! With @mmosleh.bsky.social and @dgrand.bsky.social

Examining news engagement across 7 platforms, we find:
- differences WRT political lean ("echo platforms")
- similarities WRT news quality (posting low qual news => more engagement)

Read paper and thread for more!

05.11.2025 17:19 ๐Ÿ‘ 23 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Low-quality news links draw higher engagement, no matter the political slant online - Tech and Science Post The spread of dubious headlines on social media isnโ€™t just a right-wing thingโ€”itโ€™s a social media thing, according to new research from Cornell. After studying millions of social media posts containin...

New! Great piece by Tech and Science Post highlighting new research study examining partisan news sharing on social media platforms, lead author Dr @mmosleh.bsky.social, @oii.ox.ac.uk, co-authors Jennifer Allen and @dgrand.bsky.social. 1/2
techandsciencepost.com/news/other-s...

03.11.2025 14:30 ๐Ÿ‘ 10 ๐Ÿ” 4 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 2
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Divergent patterns of engagement with partisan and low-quality news across seven social media platforms | PNAS In recent years, social media has become increasingly fragmented, as platforms evolve and new alternatives emerge. Yet most research studies a sing...

"While high-quality content is posted more and receives more total engagement across platforms...a given author attracts higher levels of engagement when they post lower-quality content"

"pattern we find seems to be driven more by an underperformance of particularly popular high-quality outlets"

05.11.2025 15:47 ๐Ÿ‘ 39 ๐Ÿ” 14 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
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New Directions in Social Algorithms Research on October 16-17, 2025 at Yale University As social media algorithms increasingly mediate social experiences, there has been a rapid increase in research on the effects of how these algorithms are configured, alternatives to engagement-centri...

๐Ÿ“ฃ Yale workshop, Oct 16-17! ๐Ÿ“ฃ How could/should content ranking work? What's new in content moderation? How can platforms promote civility? Hosted by Yale's Institute for Foundations of Data Science (FDS). Great speakers! Submit posters by 9/22! Spread the word! yalefds.swoogo.com/socialalgori...

12.09.2025 12:28 ๐Ÿ‘ 27 ๐Ÿ” 15 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 3
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Addressing misperceptions takes more than combating fake news Misinformation research should broaden its focus beyond 'fake news' to understand how people develop misperceptions and make misinformed decisions. Neโ€ฆ

Itโ€™s not that โ€œthe misinfo problemโ€ is made up. It is just harder โ€“ and messier โ€“ than we thought. Rather than throw up our hands, we MUST adapt our paradigms to meet the moment.

Read more -> www.sciencedirect.com/science/arti...

06.08.2025 13:40 ๐Ÿ‘ 4 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

2 โ€“ Study behavior - not just belief
Many ppl see falsehoods, but who acts and when? Esp harmful acts like dangerous alt medicine or mob vandalism

3 โ€“ Test interventions in fuzzy settings, not just black/white true/false content

06.08.2025 13:40 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

This means 3 shifts for misinfo researchers:

1โ€“Discover misleading content from the bottom up. e.g. sample climate messages test which increase disbelief in climate change

06.08.2025 13:40 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Itโ€™s time to reframe โ€œthe misinfo problemโ€: Instead of โ€œWhy do people believe fake news?โ€ we need to study
- What leads to misperceptions
- How do they impact real-world behavior
- What interventions actually help reduce misperceptions

06.08.2025 13:40 ๐Ÿ‘ 5 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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There IS a problem: Misperceptionsโ€“eg election denialism, vax and climate skepticismโ€“are common & impactful. But problem is less โ€œPope Endorses Trumpโ€ style fake news, more stories like these ๐Ÿ‘‡

Not false, but misleading โ€“ and massively popular (see
www.science.org/doi/10.1126/...)

06.08.2025 13:40 ๐Ÿ‘ 6 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

People are worried re fake news, BUT studies show that outright false news is rare w limited impact. Critics say this means misinfo is a not a problem and we should stop studying it.

We disagree!

06.08.2025 13:40 ๐Ÿ‘ 5 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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New in TiCS w @dgrand.bsky.social @gordpennycook.bsky.social

Itโ€™s been ~10yrs since misinfo research exploded but our paradigms are stuck in the post-2016 โ€œfake newsโ€ model

Time for new approaches:
o True/False โ†’ Content that misleads
o Belief โ†’ Behavior
o Eval interventions in ambiguous settings

06.08.2025 13:40 ๐Ÿ‘ 97 ๐Ÿ” 39 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 1
Predoctoral Research Assistant (Contract) โ€“ Computational Social Science - Microsoft Research Are you a recent college graduate wishing to gain research experience prior to pursuing a Ph.D. in fields related to computational social science (CSS)? Do you have a deep love of โ€œplaying with dataโ€โ€”...

๐Ÿšจ Predoc at Microsoft Research ๐Ÿšจ

Do you have strong front-end programming and statistics skills but need research experience before heading off to graduate school for a computational social science PhD? Apply now for this summer!

www.microsoft.com/en-us/resear...

16.04.2025 14:05 ๐Ÿ‘ 19 ๐Ÿ” 14 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Thrilled to be hosting the 3rd MEEW (Media Effects Empirical Workshop) at Columbia again. Hope to see some of you there! RSVP link is available at: sites.google.com/view/columbi...

03.04.2025 18:28 ๐Ÿ‘ 10 ๐Ÿ” 3 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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New WP!
The illusory truth effect (repetition -> belief) is core to psych of beliefs, & thought to be a deep bias impacting misinfo, persuasion & advertising

Why would cognition include such a flaw? We argue it is a rational adaptation to high-quality info environments ๐Ÿงต1/

01.02.2025 22:50 ๐Ÿ‘ 74 ๐Ÿ” 30 ๐Ÿ’ฌ 4 ๐Ÿ“Œ 2

This is my real account! I guess I have a BlueSky impersonator ๐Ÿ˜ฎ

10.12.2024 00:37 ๐Ÿ‘ 5 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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๐ŸšจNew WP๐Ÿšจ
We examine news sharing on 7 platforms:
1)Right-leaning platforms=lower quality news
2)Echo-platforms: Right-leaning news gets more engagement on right-leaning platforms, vice-versa for left-leaning
3)But low-quality news gets more engagement EVERYWHERE, even BlueSky!
osf.io/preprints/ps...

09.12.2024 19:48 ๐Ÿ‘ 172 ๐Ÿ” 79 ๐Ÿ’ฌ 7 ๐Ÿ“Œ 3