Our new website is now live at www.replicationresearch.org - See what is currently under review, learn more about who we are, customize article appearance, and view lay summaries, viewership stats, etc. for each article. Read more at www.replicationresearch.org/announcement....
Joris Frese
@fresejoris.bsky.social
Incoming Postdoctoral Prize Research Fellow in Politics at Oxford. PhD in Political Science from the EUI. Interested in: Political Behavior, Quantitative Methods, Metascience. https://www.jorisfrese.com/
Replicate everything? Interested in thoughts on this idea: shiny2.wzb.eu/ipi/replicate/ At @wzb.bsky.social we've been developing a protocol for replication files for empirical papers to: ✅be readable by machines ✅keep humans in the loop
In this oa contribution to Humanities and Social Sciences Communications, Jale Tosun, Nils Schütz, Elisabeth Maikranz and I show that the programmatic gap between churches and Christian Democratic parties in Germany on the issue of migration has widened over the years. rdcu.be/ft6wy /1
Should immigrants be allowed to vote? This is a highly politically charged question. In a new research paper and substack piece, me and @tarekjaziri.bsky.social test the biggest objection to letting foreign residents vote locally, and find it doesn't hold up. 🧵 simonhix.substack.com/p/why-not-gi...
Why Not Give Immigrants the Right to Vote?
The fear that allowing foreign residents to vote in local elections would benefit left-wing parties turns out to be wrong.
simonhix.substack.com
New working paper w/ @denis-cohen.bsky.social @rantuna.bsky.social & @turnbulldugarte.com! *Does publicly refusing to cooperate with the far right only strengthen it?* A widespread belief says yes. In this paper, we test it based on a natural experiment from Spain. tinyurl.com/5azkfnas [1/6]
The debate about Borjas/Breznau's paper on ideological bias in migration research is out now @i4replication.bsky.social. With a comment by Katrin Auspurg & Josef Brüderl: hdl.handle.net/10419/341575 And a reply by the original authors: hdl.handle.net/10419/341576
Representativeness and response validity across nine opt-in online samples
Representativeness and response validity across nine opt-in online samples
Nature Human Behaviour, Published online: 22 June 2026; doi:10.1038/s41562-026-02438-zStagnaro et al. compare nine opt-in participant samples on measures of response validity, representativeness and professionalism. They find substantial variation across samples and offer guidance for choosing samples based on the research question.
dlvr.it
Are preferences for authoritarian rule individual predispositions—or can they spread socially? Using field + survey experiments in the Norwegian Armed Forces, we show that openness to strongman rule can spread socially. American Journal of Political Science: onlinelibrary.wiley.com/doi/10.1111/...
American Journal of Political Science | MPSA Journal | Wiley Online Library
The increasing popularity of strongman rule in democratic societies underscores the need to explore how authoritarian regime preferences might spread socially. We assess the role of social influence ...
onlinelibrary.wiley.com
🧵 Introducing ReproAI, an author-facing agentic AI plugin for replication packages: reproai.org We built this tool to help authors prepare replication packages before submission, w/ @leoyangyang.bsky.social.
ReproAI: the plugin for reproducible replication packages
An author-facing AI plugin that helps you prepare a cleaner, reproducible replication package before submission.
reproai.org
🔄 Starting shortly – EPSS Roundtable 1 on Standards for Replication in Political Science with Daniel Bischhof, Yara Bochkareva, Andrew Eggers, Joris Frese & Macartan Humphreys from 10:50 - 12:30 | Bar 2 (ICC)
Now traveling to @epssnet.bsky.social I would like to draw your attention to a panel on: Standards for Replication in Political Science 10:50-12:30 Thursday, 18 June, 2026, Bar 2 w. @bochkareva.bsky.social @fresejoris.bsky.social @macartan.bsky.social @aeggers.bsky.social and myself.
The White House has moved to ban almost all work authorization for asylum seekers, indefinitely. In my new note with the brilliant Natalia Rigol & Amy Nice, we assess White House claims that work authorization 1) harms US workers and 2) causes frivolous asylum claims. www.hbs.edu/faculty/Page...
Check for replications of a specific article or your entire Zotero library - it only takes a few seconds with our Zotero Replication Checker. Download it for free at forrt.org/flora-zotero/ @zotero.org @forrt.bsky.social
⚽📚 The Ultimate World Cup Research Thread I've set up a little automated thread: every day of the 2026 World Cup (11 Jun–19 Jul) it shares one study on what football does to society: politics, economics, migration, health, crime & more. One paper a day. Kickoff below 👇
New paper out in the @thejop.bsky.social (w/ @christinagahn.bsky.social) Do opinion polls shape election results? Using both cross-national data and a survey experiment, the answer we find is yes - though it depends on how we communicate polling results. www.journals.uchicago.edu/doi/10.1086/...
🚨 What happens with voters when politicians use simpler language? New @thejop.bsky.social paper with @rsenninger.bsky.social: simple language changes not just what citizens understand, but who they think politicians are. www.journals.uchicago.edu/doi/10.1086/...
Can Simple Language Affect Voters’ Political Knowledge and Their Beliefs About Politicians? | The Journal of Politics: Vol 0, No 0
How does the level of sophistication in political messages affect citizens? While research has examined how politicians use this element to distinguish themselves, little is known about how it resonat...
journals.uchicago.edu
This is a great study and (one of?) the first of its kind! A note of caution from a human contributor though: given the slow academic publishing process, the findings should primarily be interpreted as a snapshot of AI capabilities (and the capabilities of researchers using AI) in 2024. (1/4)
1/ Can AI help researchers check whether published social science results actually reproduce? In our new PNAS paper, we tested this directly in the AI Replication Games: 288 researchers, 103 teams, and real replication packages from quantitative social science.
This is a great study and (one of?) the first of its kind! A note of caution from a human contributor though: given the slow academic publishing process, the findings should primarily be interpreted as a snapshot of AI capabilities (and the capabilities of researchers using AI) in 2024. (1/4)
1/ Can AI help researchers check whether published social science results actually reproduce? In our new PNAS paper, we tested this directly in the AI Replication Games: 288 researchers, 103 teams, and real replication packages from quantitative social science.
🚨NEW PUBLICATION🚨 in Science Advances. We meta-reanalyze 100 conjoint experiments to assess which immigrants citizens prefer around the world. Our evidence reinforces existing findings, identifies novel insights, and provides a basis for future research 1/n www.science.org/doi/10.1126/...
Which immigrants do citizens prefer? A meta-reanalysis of 100 conjoint experiments
Meta-reanalysis of 100 conjoint experiments reveals patterns of similarity and variation in public immigration preferences worldwide.
science.org
We have a new paper out in PNAS. Susanna’s thread outlines our findings. The big picture takeaway is that well-designed climate education (active, personally relevant, science-based) can complement fiscal and regulatory instruments by building public support for ambitious policy!
🚨I have a new paper out in PNAS with my co-authors, @maxbradley.bsky.social @renschazottes.bsky.social and @ninalopezuroz.bsky.social: "Educational policies can strengthen climate coalitions." A thread on what we found (and a great story about doing ambitious research without funding!) [1/9]
1/ New @Nature! We study how powerful institutions shape the information environment for LLMs. Commercial LLM training is opaque, so we trace a path from state-coordinated media -> training data -> model responses.
On 7 May 2026, Britain ran a PR experiment: Scottish Parliament: a Mixed-Member Proportional system Welsh Senedd: a (new) Low-Magnitude Party List system Same day, same political context, different outcomes. Which version of PR would be better for Westminster? 🧵
It takes a village to produce research with impact. This is the idea that motivated us to write this paper, published today. Kudos to the team: @lluisdanus.bsky.social @william-dinneen.bsky.social @carotorreblanca.bsky.social @guygrossman.bsky.social @asc.upenn.edu www.pnas.org/doi/10.1073/...
Interesting paper on minimum detectable effects and underpoweredness www.cambridge.org/core/journal...
Null by Design: Statistical Dilution in Immigration-Crime Research | British Journal of Political Science | Cambridge Core
Null by Design: Statistical Dilution in Immigration-Crime Research - Volume 56
cambridge.org
🚨🚨Welcome and very significant news on #EU-UK relationship and #brexit reversal: yesterday, the European Union and the United Kingdom have enabled the UK's association to #Erasmus+ in 2027. 🧵 ec.europa.eu/commission/p...
European Union and United Kingdom take decisive step towards Erasmus+ association in 2027
Today, the European Union and the United Kingdom have enabled the UK\'s association to Erasmus+ in 2027.
ec.europa.eu
🚨New Paper in PNAS: "Refugee Labor Market Integration at Scale: Evidence from Germany’s Fast-Track Employment Program" www.pnas.org/doi/10.1073/... Ungated preprint osf.io/preprints/socarxiv/px9ew_v3 w/ J Hainmueller, D Hangartner, @niklas-harder.bsky.social & E Vallizadeh #econtwitter #econsky
Refugee labor market integration at scale: Evidence from Germany’s fast-track employment program | PNAS
Governments face persistent challenges in integrating refugees into the local labor market, and many past interventions have shown limited impact. ...
pnas.org
New study out in Nature Human Behaviour: 37 million US users were exposed to deceptive networks on Facebook & 3 million on Instagram during the 2020 elections—roughly 15% and 2% of active users. 🧵
📄Published Today in Nature: 500 researchers reproduced 100 studies across the social & behavioral sciences to assess their analytical robustness (led by @balazsaczel.bsky.social & @szaszibarnabas.bsky.social). Article: www.nature.com/articles/s41... Preprint: osf.io/preprints/me... TLDR: 1/11
Really excited to see this published! I contributed a small part by doing one of the "robustness replications" as my econ friends call it. Stellar coordination effort by @balazsaczel.bsky.social, @szaszibarnabas.bsky.social et al.!
📄Published Today in Nature: 500 researchers reproduced 100 studies across the social & behavioral sciences to assess their analytical robustness (led by @balazsaczel.bsky.social & @szaszibarnabas.bsky.social). Article: www.nature.com/articles/s41... Preprint: osf.io/preprints/me... TLDR: 1/11
📄Published Today in Nature: 500 researchers reproduced 100 studies across the social & behavioral sciences to assess their analytical robustness (led by @balazsaczel.bsky.social & @szaszibarnabas.bsky.social). Article: www.nature.com/articles/s41... Preprint: osf.io/preprints/me... TLDR: 1/11