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Jesper W. Schneider

@jesper-w-schneider.bsky.social
1K followers 127 following 38 posts

Quantitative science studies, Meta-research, Research evaluation, Science policy, Research integrity, Statistics - Bayesian and a proud methodological terrorist X & mastodon: @schneider_jw

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Reposted by Jesper W. Schneider
jessefrederik.bsky.social @jessefrederik.bsky.social · 02/10/2026
“It’s too bad that @catherinedevries.bsky.social and her colleagues messed up in their original analysis, but such things happen. It’s additionally unfortunate that she chose to respond to useful criticism by doubling down on poor methodological choices.” statmodeling.substack.com/p/a-dutch-jo...
statmodeling.substack.com
A Dutch journalist shoots down an article in the American Journal of Political Science
On this one, I agree with the journalist that the political scientist got it wrong.
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Julia M. Rohrer @dingdingpeng.the100.ci · 25/02/2026
You need to bring in the same toolkit as in studies that try to establish causality without randomization. I know it sounds unfair, but I don’t make the rules. These situations are instances of post-treatment bias, if you want to read up on it as a psychologist:
compass.onlinelibrary.wiley.com
Causal inference for psychologists who think that causal inference is not for them
Correlation does not imply causation and psychologists' causal inference training often focuses on the conclusion that therefore experiments are needed—without much consideration for the causal infer...
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Daniel Lakens @lakens.bsky.social · 14/02/2026
Babbage, 1830, discussing the problem that scientists selectively report findings that they want to be true. Confirmation bias is a strong human tendency. This is why we need to design science in a way that prevents conformation bias from leading us away from the truth.
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Angie Rasmussen @angierasmussen.bsky.social · 06/02/2026
Have I ever mentioned how surreal it is to be an Editor-in-Chief of a journal called Vaccine right now? www.science.org/content/arti... It’s pretty wild, at least by typical academic journal editorial office standards.
science.org
Controversial Danish vaccine research group faces new allegations
Researchers say they couldn’t find complete data for 10 trials that together enrolled tens of thousands of children in Guinea-Bissau
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Stephen Senn @stephensenn.bsky.social · 05/02/2026
Die, Dichotomy. www.linkedin.com/pulse/die-di... A brief post encouraging you to read the original paper with @erik-van-zwet.bsky.social and @f2harrell.bsky.social . onlinelibrary.wiley.com/doi/epdf/10....
linkedin.com
Die, Dichotomy
We have studied 21 435 unique randomized controlled trials (RCTs) from the Cochrane Database of Systematic Reviews (CDSR).Of these trials, 7224 (34%) have a continuous (numerical) outcome and 14 211 (...
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 23/01/2026
Guinea-Bissau suspends a US-funded vaccine trial as African scientists question its motives www.nature.com/articles/d41...
nature.com
Guinea-Bissau suspends a US-funded vaccine trial as African scientists question its motives
Officials from the US Department of Health and Human Services, which funded the controversial study, say that it will proceed as planned.
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Reposted by Jesper W. Schneider
Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 09/12/2025
I'm teaching Statistical Rethinking again starting Jan 2026. This time with live lectures, divided into Beginner and Experienced sections. Will be a lot more work for me, but I hope much better for students. I will record lectures & all will be found at this link: github.com/rmcelreath/s...
course schedule as a table. Available at the link in the post.
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 19/12/2025
... and another www.theguardian.com/society/2025...
theguardian.com
US plan for $1.6m hepatitis B vaccine study in Africa called ‘highly unethical’
Experts decry ‘neocolonialist’ Guinea-Bissau study after Trump administration changed advice for US babies
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 19/12/2025
www.weekendavisen.dk/ideer/kenned...
weekendavisen.dk
Kennedy-penge til dansk vaccineforskning
Støtte. Kontroversielle danske forskere har fået millioner fra amerikanske Robert F. Kennedy Jr.s ministerium til et nyt vaccineforsøg. Anerkendt professor kalder det »dybt uetisk«.
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 19/12/2025
CDC funds controversial hepatitis B vaccine trial in African newborns | Science | AAAS www.science.org/content/arti...
science.org
CDC funds controversial hepatitis B vaccine trial in African newborns
Scientists question the value of the proposed study, which will investigate a vaccine long known to be efficacious and safe
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 18/12/2025
www.cidrap.umn.edu/childhood-va...
cidrap.umn.edu
CDC awards $1.6 million for hepatitis B vaccine study, likely to controversial Danish researchers
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Reposted by Jesper W. Schneider
Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 16/12/2025
When I take train journeys, I sometimes write things. Things that I probably shouldn't publish
# Bayesians are to frequentists as vegetarians are to murderers

I have close friends who do not eat meat, for moral reasons. It's not that they find meat disgusting. In fact, they find it delicious. Instead they regard meat as murder.

And yet we continue to be friends. I myself do not think meat is murder. I regard it in fact as an ordinary and normative part of human society. It's so commonplace. How could it be murder?

This sort of moral incompatibility is commonplace. Vegetarians and vegans have to put up with assholes like me all the time. They are surrounded.
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David Colquhoun @davidcolquhoun.bsky.social · 16/12/2025
Subscribe to @theatlantic.com And always read @anneapplebaum.bsky.social
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Lukas Röseler @aufdroeseler.bsky.social · 25/11/2025
Preregistrations without Code do not Prevent P-Hacking: You can increase your chances for a significant finding in the absence of real effects even with correlations and t test despite having preregistered your hypothesis (e.g., simply changing arguments in the functions). doi.org/10.31222/osf...
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Donald Szlosek @dszlosek.bsky.social · 10/10/2025
S-Values are much more interpretable than P-values, yet adoption seems near impossible. I wonder what it would take to make the leap? #statssky #episky #rstats #statistics
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 13/11/2025
... and our paper is available here: www.sciencedirect.com/science/arti...
sciencedirect.com
What is actually the emerging evidence about non-specific vaccine effects in randomized trials from the Bandim Health Project?
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 13/11/2025
www.weekendavisen.dk/ideer/slaget...
weekendavisen.dk
Slaget om vaccinernes effekt | Weekendavisen
Opløsning. Statistikprofessorer hiver med ny analyse tæppet væk under kendt vaccinepars mange lodtrækningsforsøg. De er oversolgte og støtter ikke hypotesen om uspecifikke vaccineeffekter, slår profes...
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Reposted by Jesper W. Schneider
Paolo Crosetto @paolocrosetto.bsky.social · 12/11/2025
What is the most profitable industry in the world, this side of the law? Not oil, not IT, not pharma. It's *scientific publishing*. We call this the Drain of Scientific Publishing. Paper: arxiv.org/abs/2511.04820 Background: doi.org/10.1162/qss_... Thread @markhanson.fediscience.org.ap.brid.gy 👇
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 11/11/2025
New paper out rdcu.be/ePj0e
rdcu.be
The unequal dividend: gender differences in early-career researchers’ performance gains from international mobility
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 09/07/2025
How can we reform science? I have some ideas. But I am not sure you’ll like them, because they don’t promise much. elevanth.org/blog/2025/07...
elevanth.org
Which Kind of Science Reform
What hope is there for science reform, if we can't agree on what to reform? Right now, principles are more important than practices.
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 05/11/2025
Forsker: Nyt udspil lover risikovillig forskning – men systemet hæmmer potentialet - Altinget www.altinget.dk/forskning/ar...
altinget.dk
Forsker: Nyt udspil lover risikovillig forskning – men systemet hæmmer potentialet - Altinget
Regeringens nye forskningsplan lover risikovillighed og langsigtet tænkning, men uden dybere reformer af systemet risikerer man, at systemet ikke kan absorbere forskningsmidlerne effektivt, skriver Je...
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 03/11/2025
Forsker: Debatten om frie og bundne midler er blevet en skyttegravskrig - Altinget www.altinget.dk/fonde/artike...
altinget.dk
Forsker: Debatten om frie og bundne midler er blevet en skyttegravskrig - Altinget
Den hårde konkurrence om forskningsmidlerne har skabt en ond cirkel, hvor forskere bruger mere tid på ansøgninger end på forskning. Hvis Danmark vil sikre reel fri forskning, kræver det et mere bæredy...
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Reposted by Jesper W. Schneider
Matti Vuorre @matti.vuorre.com · 14/10/2025
Against Publishing: universonline.nl/nieuws/2025/... Preprints are read, shared, and cited, yet still dismissed as incomplete until blessed by a publisher. I argue that the true measure of scholarship lies in open exchange, not in the industry’s gatekeeping of what counts as published.
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 08/10/2025
Did humans evolve to 'protect' women? traditionsofconflict.substack.com/p/did-humans...
traditionsofconflict.substack.com
Did humans evolve to 'protect' women?
Ethnography complicates a convenient narrative
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Edward Elderman @elderman.bsky.social · 26/09/2025
This only happens to you once
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Richard D. Morey @richarddmorey.bsky.social · 25/09/2025
Simonsohn has now posted a blog response to our recent paper about the poor statistical properties of the P curve. @clintin.bsky.social and I are finishing up a less-technical paper that will serve as a response. But I wanted to address a meta-issue *around* this that may clarify some things. 1/x
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 12/09/2025
snyder.substack.com/p/war-of-exh...
snyder.substack.com
War of Exhaustion in Ukraine (video)
And our responsibility
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Reposted by Jesper W. Schneider
Darren Dahly @statsepi.bsky.social · 11/09/2025
There is, I believe, only one correct answer to this problem.
Who can stop “bad” research?

Researchers and universities?

Funders before it’s funded?

Funders after it’s funded?

Journals before it’s published?

Journals after it’s published?

Policy makers when using research?
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Chris Crandall @chriscrandall.bsky.social · 09/09/2025
Paul Feyerabend, Against Method. Prescriptions about how science MUST be done? Simply a bad, authoritarian idea. And based on the history of science, not good for scientific progress. #metasci
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Per Engzell @pengzell.bsky.social · 28/06/2025
Being a social scientist means holding two truths at once: 1. This is all deeply complicated 2. I have to submit something by Tuesday
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 27/06/2025
Gender disparity in funding rates in double-blind grant peer review: The case of the Villum Experiment url: direct.mit.edu/qss/article/...
direct.mit.edu
Gender disparity in funding rates in double-blind grant peer review: The case of the Villum Experiment
Abstract. The Villum Experiment (VEX) is one of the few funding schemes that employs a double-blind review process where applicants are blinded to reviewers, applications are highly standardised, revi...
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Carl T. Bergstrom @carlbergstrom.com · 11/06/2025
Easy there, Tiger.
Science Magazine June 10, 2025. Nosek says the order treats ideas for reform as requirements rather than targets, when even the best studies are unlikely to meet every criterion:

Center for Open Science about page, June 10, 2025.
Hierarchy of goals
1. Make it possible
2. Make is easy
3. Make it normative
4. Make it rewarding
5. Make it required
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 27/05/2025
johnmandrola.substack.com/p/restoring-...
johnmandrola.substack.com
Restoring Gold Standard Science is Far More than Stopping Fraud
Some brief thoughts on the call for Gold Standard Science
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 20/05/2025
AI, Materials, and Fraud, Oh My! open.substack.com/pub/thebsdet...
open.substack.com
AI, Materials, and Fraud, Oh My!
The red flags we should have seen earlier for a too-good-to-be-true paper on AI tool adoption at a materials research firm
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 02/04/2025
snyder.substack.com/p/twenty-les...
snyder.substack.com
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 01/04/2025
www.nybooks.com/articles/202...
nybooks.com
Trump, Antisemitism & Academia | Christopher R. Browning
If the Trump administration were truly concerned about antisemitism, it would start in its own house.
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Anne Applebaum @anneapplebaum.wsocial.eu · 29/03/2025
This, from Timothy Snyder, is definitive, on Greenland open.substack.com/pub/snyder/p...
open.substack.com
The Imperialism Has no Clothes
JD Vance in Greenland
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Niels Østergaard Jensen @impevius.eurosky.social · 23/03/2025
En af de mest komplette oversigter, jeg har set mobilsiden.dk/nyheder/it-t...
mobilsiden.dk
Bedste europæiske alternativer til amerikansk teknologi og elbiler
Find de bedste europæiske alternativer til populære amerikanske tjenester som Google, Facebook, X, Gmail og flere.
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 22/03/2025
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Jesper W. Schneider @jesper-w-schneider.bsky.social · 22/03/2025
www.wsj.com/world/europe...
wsj.com
Essay | What Is the Endgame for Ukraine?
History offers a range of precedents for what an agreement with Russia could look like—and how bad the consequences might be.
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Masud Husain @masudhusain.bsky.social · 06/03/2025
Why academia is sleepwalking into self-destruction. My editorial @brain1878.bsky.social If you agree with the sentiments please repost. It's important for all our sakes to stop the madness academic.oup.com/brain/articl...
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Anne Applebaum @anneapplebaum.wsocial.eu · 07/03/2025
Since writing this article, I have received messages from federal civil servants who tell me it is accurate, and that they are frightened. Please share this with anyone who doesn't understand the scale of the transformation. www.theatlantic.com/ideas/archiv...
theatlantic.com
There’s a Term for What Trump and Musk Are Doing
How regime change happens in America
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Astrid Haug @astridhaug.bsky.social · 02/03/2025
Over de seneste dage har jeg udbygget min liste over danske/europæiske/australske/canadiske alternativer til Meta, X, Google, ChatGPT, Netflix og meget mere - software, sociale medier, streaming, hardware. Enjoy 🙏
astridhaug.dk
Alternativer til Meta, X og ChatGPT 🇪🇺 - Astrid Haug
Her er min liste over software, hardware, sociale medier til at skifte amerikansk tech ud med europæiske, gerne danske, alternativer, eller noget, der er open source og/eller nonprofit.  Først et par ...
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Timothy Snyder @timothysnyder.bsky.social · 28/02/2025
Given that the Trump people did nothing to induce Russia to end the war, it’s fair to conclude that the whole idea of pursuing peace was just a pretext to renew relations with Russia.
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Steven Beschloss @stevenbeschloss.bsky.social · 28/02/2025
Trump’s disgusting behavior in our Oval Office in the company of a genuine hero and defender of democracy like Volodymyr Zelensky may be the most disgraceful public behavior by any president in our history.
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Timothy Snyder @timothysnyder.bsky.social · 28/02/2025
Here I react to the shameful encounter between American leaders and media and the Ukrainian president. No doubt there were more, but I saw five failures on our side: of hospitality, decency, democracy, strategy, and independence. Please watch and share. snyder.substack.com/p/five-failu...
snyder.substack.com
Five Failures in the Oval Office (video)
America hurt itself badly today.
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The Kyiv Independent @kyivindependent.com · 19/02/2025
As a humanitarian aid worker, 28-year-old Edward Scott has made multiple trips to the front-line areas to evacuate civilian Ukrainians. But the mission on Jan. 30 to the embattled city of Pokrovsk in southern Donetsk Oblast was different.
kyivindependent.com
British volunteer who lost arm and leg evacuating Ukrainian civilians: ‘Russia is the enemy. How can you not see it?’
It could have been a tragic story costing British volunteer Edward Scott his life. As a humanitarian aid worker with the Ukrainian NGO "Baza" (the "Base" in Ukrainian), 28-year-old Scott has made mul...
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 11/02/2025
You prob follow @3blue1brown.bsky.social already. This latest video is great. I watched it with my son, who saw how all that middle school trig he learned solves important astronomy problems. I just wish he had learned it with these examples instead of "how tall is the tree". youtu.be/YdOXS_9_P4U
youtu.be
Terence Tao on how we measure the cosmos | Part 1
YouTube video by 3Blue1Brown
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Anne Applebaum @anneapplebaum.wsocial.eu · 18/01/2025
For no reason that he can articulate, Trump has triggered a crisis in Denmark www.theatlantic.com/internationa...
theatlantic.com
Trump Triggers a Crisis in Denmark—And Europe
"Trump might forget about Greenland. But also, he might not. Nobody knows. He operates on whims," @anneapplebaum writes.
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