Felix Thoemmes
@felixthoemmes.bsky.social
Reposted by Felix Thoemmes
Sending babies to nursery (daycare, for Americans) completely changes their microbiome www.nature.com/articles/d41...
Sending babies to nursery completely reshapes their microbiomes
Socializing at a young age helps to develop greater diversity in children’s microbiota, according to an analysis of baby-to-baby transmission of gut bacteria.
www.nature.com
January 22, 2026 at 1:30 PM
Sending babies to nursery (daycare, for Americans) completely changes their microbiome www.nature.com/articles/d41...
Reposted by Felix Thoemmes
Improving scientific practice can seem daunting. In this fantastic talk (and thread below), Julia Rohrer shares practical ways to communicate methodological insights to a wider audience of researchers.
Some people bring up (1) the cost of criticism and (2) that a lot of criticism has already been voiced but ignored. Both points are valid, so here are some suggestion for (1) reducing backlash and (2) increasing impact (from this talk of mine: juliarohrer.com/wp-content/u...
January 22, 2026 at 12:03 PM
Improving scientific practice can seem daunting. In this fantastic talk (and thread below), Julia Rohrer shares practical ways to communicate methodological insights to a wider audience of researchers.
Reposted by Felix Thoemmes
Services like RegCheck are extremely promising for moving norms forward from doing open science practices to doing open science practices well.
Comparing registrations to published papers is essential to research integrity - and almost no one does it routinely because it's slow, messy, and time-demanding.
RegCheck was built to help make this process easier.
Today, we launch RegCheck V2.
🧵
regcheck.app
RegCheck was built to help make this process easier.
Today, we launch RegCheck V2.
🧵
regcheck.app
RegCheck
RegCheck is an AI tool to compare preregistrations with papers instantly.
regcheck.app
January 22, 2026 at 12:50 PM
Services like RegCheck are extremely promising for moving norms forward from doing open science practices to doing open science practices well.
Reposted by Felix Thoemmes
Comparing registrations to published papers is essential to research integrity - and almost no one does it routinely because it's slow, messy, and time-demanding.
RegCheck was built to help make this process easier.
Today, we launch RegCheck V2.
🧵
regcheck.app
RegCheck was built to help make this process easier.
Today, we launch RegCheck V2.
🧵
regcheck.app
RegCheck
RegCheck is an AI tool to compare preregistrations with papers instantly.
regcheck.app
January 22, 2026 at 11:05 AM
Comparing registrations to published papers is essential to research integrity - and almost no one does it routinely because it's slow, messy, and time-demanding.
RegCheck was built to help make this process easier.
Today, we launch RegCheck V2.
🧵
regcheck.app
RegCheck was built to help make this process easier.
Today, we launch RegCheck V2.
🧵
regcheck.app
Reposted by Felix Thoemmes
Open Causal: the second-best way to discuss a causal graph, right after the blackboard. Reporting from the Foundations of Causal Inference Workshop at the Isaac Newton Institute, Cambridge. @opencausal.org
January 21, 2026 at 4:03 PM
Open Causal: the second-best way to discuss a causal graph, right after the blackboard. Reporting from the Foundations of Causal Inference Workshop at the Isaac Newton Institute, Cambridge. @opencausal.org
Reposted by Felix Thoemmes
The official launch of the Irish Reproducibility Network. It's all happening, which is very exciting. Join us! irishrn.org/events/
(Though they've made a grave error in giving a statistician the last word)
cc @dermotlynott.bsky.social
(Though they've made a grave error in giving a statistician the last word)
cc @dermotlynott.bsky.social
January 21, 2026 at 1:53 PM
The official launch of the Irish Reproducibility Network. It's all happening, which is very exciting. Join us! irishrn.org/events/
(Though they've made a grave error in giving a statistician the last word)
cc @dermotlynott.bsky.social
(Though they've made a grave error in giving a statistician the last word)
cc @dermotlynott.bsky.social
Reposted by Felix Thoemmes
JOB ALERT 🚨 Postdoc opportunity! Join our NIA-funded collaboration with Northwestern (@ekgraham22.bsky.social) studying social isolation, loneliness, and cognitive aging. Come work with us in beautiful Ithaca! Review of applications begins immediately: academicjobsonline.org/ajo/jobs/31543
January 20, 2026 at 6:01 PM
JOB ALERT 🚨 Postdoc opportunity! Join our NIA-funded collaboration with Northwestern (@ekgraham22.bsky.social) studying social isolation, loneliness, and cognitive aging. Come work with us in beautiful Ithaca! Review of applications begins immediately: academicjobsonline.org/ajo/jobs/31543
Reposted by Felix Thoemmes
it only took a year but I'm back with more information about my Positron setup!
This time I'm going over my Extensions and Settings
emilhvitfeldt.com/post/positro...
This time I'm going over my Extensions and Settings
emilhvitfeldt.com/post/positro...
Positron: My Extensions and Settings
Positron is a new and existing IDE for data science. All my extensions and settings I use to improve my experience.
emilhvitfeldt.com
January 20, 2026 at 7:35 PM
it only took a year but I'm back with more information about my Positron setup!
This time I'm going over my Extensions and Settings
emilhvitfeldt.com/post/positro...
This time I'm going over my Extensions and Settings
emilhvitfeldt.com/post/positro...
Reposted by Felix Thoemmes
Today, we celebrate the 80th year of the @um-src.bsky.social at ISR by launching a new web panel starting Fall 2026. It is called M-Panel and will be collecting a national sample representative of the U.S.
January 20, 2026 at 7:24 PM
Today, we celebrate the 80th year of the @um-src.bsky.social at ISR by launching a new web panel starting Fall 2026. It is called M-Panel and will be collecting a national sample representative of the U.S.
Reposted by Felix Thoemmes
One of my new year resolutions is to update my online MOOC. The first has been online for a decade, and around 7000 people enroll each year. That is a lot, and it is worth updating. I will combine both MOOCs into one, update everything, and align it with my free textbook.
January 20, 2026 at 7:37 PM
One of my new year resolutions is to update my online MOOC. The first has been online for a decade, and around 7000 people enroll each year. That is a lot, and it is worth updating. I will combine both MOOCs into one, update everything, and align it with my free textbook.
Reposted by Felix Thoemmes
If you tell an AI to convince someone of a true vs. false claim, does truth win? In our *new* working paper, we find...
‘LLMs can effectively convince people to believe conspiracies’
But telling the AI not to lie might help.
Details in thread
‘LLMs can effectively convince people to believe conspiracies’
But telling the AI not to lie might help.
Details in thread
January 20, 2026 at 3:00 PM
If you tell an AI to convince someone of a true vs. false claim, does truth win? In our *new* working paper, we find...
‘LLMs can effectively convince people to believe conspiracies’
But telling the AI not to lie might help.
Details in thread
‘LLMs can effectively convince people to believe conspiracies’
But telling the AI not to lie might help.
Details in thread
Reposted by Felix Thoemmes
📦✨ The first printed copies of our pop-science book on Open Science have arrived! With Marko Sarstedt, dsiegfried1.bsky.social, Meikel Neumann, @susanne-adler.bsky.social & Monika Imschloss, we take readers on a journey through the “Open Science Land”.
👉Open access: expedition-open-science.org
👉Open access: expedition-open-science.org
January 19, 2026 at 3:29 PM
📦✨ The first printed copies of our pop-science book on Open Science have arrived! With Marko Sarstedt, dsiegfried1.bsky.social, Meikel Neumann, @susanne-adler.bsky.social & Monika Imschloss, we take readers on a journey through the “Open Science Land”.
👉Open access: expedition-open-science.org
👉Open access: expedition-open-science.org
Reposted by Felix Thoemmes
I consider myself good at ggplot but this is something amazing that I didn't know
You can specify relative position in ggplot with I(x) I(y).
E.g. annotate("text", x = I(.5), y = I(.5), label = "hello!") will place the text in the middle of the plot.
This, combined with alignment arguments is like 87% of the magic for me.
E.g. annotate("text", x = I(.5), y = I(.5), label = "hello!") will place the text in the middle of the plot.
This, combined with alignment arguments is like 87% of the magic for me.
January 19, 2026 at 7:00 PM
I consider myself good at ggplot but this is something amazing that I didn't know
Reposted by Felix Thoemmes
Many think LLM-simulated participants can transform behavioral science. But there's been a lack of accessible discussion of what it means to validate LLMs for behavioral scientists. Under what conditions can we trust LLMs to learn about human parameters? Our paper maps the validation landscape.
1/
1/
December 18, 2025 at 5:53 PM
Many think LLM-simulated participants can transform behavioral science. But there's been a lack of accessible discussion of what it means to validate LLMs for behavioral scientists. Under what conditions can we trust LLMs to learn about human parameters? Our paper maps the validation landscape.
1/
1/
Reposted by Felix Thoemmes
INSPIRING: How Two Canadian Organizations Created a National Model for Diamond Open Access katinamagazine.org/content/arti... “The final piece of the Canadian diamond OA puzzle is a nationwide network of library publishing programs hosted in university libraries."
How Two Canadian Organizations Created a National Model for Diamond Open Access
The Canadian Research Knowledge Network and Érudit transformed their vendor-client relationship into a collaborative partnership to support open access without author-facing fees. What can we learn fr...
katinamagazine.org
January 19, 2026 at 4:16 AM
INSPIRING: How Two Canadian Organizations Created a National Model for Diamond Open Access katinamagazine.org/content/arti... “The final piece of the Canadian diamond OA puzzle is a nationwide network of library publishing programs hosted in university libraries."
Reposted by Felix Thoemmes
Beautiful business research people: The Leibniz Information Centre for Economics has created an accessible introduction to Open Science that you can download in both English and German here: expedition-open-science.org
You can even order the German print version for free!
You can even order the German print version for free!
Open-Science-Land
In the Planning section, clearly structured landscapes dominate the picture: vast research plains where hypotheses are formed, well-mapped paths of methodology and transparent data sources that need to be carefully developed.
expedition-open-science.org
January 19, 2026 at 8:16 AM
Beautiful business research people: The Leibniz Information Centre for Economics has created an accessible introduction to Open Science that you can download in both English and German here: expedition-open-science.org
You can even order the German print version for free!
You can even order the German print version for free!
Reposted by Felix Thoemmes
Introducing CORTRE: a reporting guideline for reproducibility efforts 👉 cortre.github.io
We are excited to officially announce CORTRE: COmplete Reporting for Transparent Reproducibility Efforts 🎯
🧵👇
We are excited to officially announce CORTRE: COmplete Reporting for Transparent Reproducibility Efforts 🎯
🧵👇
January 19, 2026 at 10:19 AM
Introducing CORTRE: a reporting guideline for reproducibility efforts 👉 cortre.github.io
We are excited to officially announce CORTRE: COmplete Reporting for Transparent Reproducibility Efforts 🎯
🧵👇
We are excited to officially announce CORTRE: COmplete Reporting for Transparent Reproducibility Efforts 🎯
🧵👇
Reposted by Felix Thoemmes
"We find that questionable research practices (QRPs) are widespread across all fields of research and seniority levels. Yet, younger, more prolific researchers, and those dismissing the seriousness of QRPs admitted to more QRPs"
journals.plos.org/plosone/arti...
journals.plos.org/plosone/arti...
The ‘shades of grey’ in research integrity—Researchers admit to questionable research practices that they do not perceive to be serious
Research misconduct practices like fabrication, falsification and plagiarism (FFP) are serious deviations from good research conduct, which have attracted attention in the literature due to the damage...
journals.plos.org
January 18, 2026 at 2:02 PM
"We find that questionable research practices (QRPs) are widespread across all fields of research and seniority levels. Yet, younger, more prolific researchers, and those dismissing the seriousness of QRPs admitted to more QRPs"
journals.plos.org/plosone/arti...
journals.plos.org/plosone/arti...
Reposted by Felix Thoemmes
Our 🆕 blog post shares how COS puts Transparency & Openness Promotion (TOP) guidelines into action as a funder in our Funding Consciousness Research with Registered Reports initiative, showing how lifecycle open science can advance verifiability & credibility in research
💡
💡
TOP in Action: Modeling TOP Implementation for Funders
The TOP framework is adaptable for use by funders, institutions, journals, and other policymakers. In November, we announced that we will be implementing TOP’s revised framework into our own policies and initiatives. Today, we are showing how we implement TOP when acting as a funder in our Funding Consciousness Research with Registered Reports initiative.
www.cos.io
January 15, 2026 at 2:40 PM
Our 🆕 blog post shares how COS puts Transparency & Openness Promotion (TOP) guidelines into action as a funder in our Funding Consciousness Research with Registered Reports initiative, showing how lifecycle open science can advance verifiability & credibility in research
💡
💡
Reposted by Felix Thoemmes
New study shows Portugese researchers engage in questionable research practices (sometimes frequently), even though most admit these are problematic. QRPs studied are mainly related to integrity, but includes hypothesizing after results are known.
journals.plos.org/plosone/arti...
journals.plos.org/plosone/arti...
January 16, 2026 at 6:32 AM
New study shows Portugese researchers engage in questionable research practices (sometimes frequently), even though most admit these are problematic. QRPs studied are mainly related to integrity, but includes hypothesizing after results are known.
journals.plos.org/plosone/arti...
journals.plos.org/plosone/arti...
Reposted by Felix Thoemmes
Funders - ever wondered what it might look like to implement the TOP guidelines? Here, COS shows how they've done so with the updated (2025) guidelines in their own work as a pass-through funder.
Take aways? TOP is a modular, customizable framework that can be tweaked for a variety of settings.
Take aways? TOP is a modular, customizable framework that can be tweaked for a variety of settings.
Our 🆕 blog post shares how COS puts Transparency & Openness Promotion (TOP) guidelines into action as a funder in our Funding Consciousness Research with Registered Reports initiative, showing how lifecycle open science can advance verifiability & credibility in research
💡
💡
TOP in Action: Modeling TOP Implementation for Funders
The TOP framework is adaptable for use by funders, institutions, journals, and other policymakers. In November, we announced that we will be implementing TOP’s revised framework into our own policies and initiatives. Today, we are showing how we implement TOP when acting as a funder in our Funding Consciousness Research with Registered Reports initiative.
www.cos.io
January 15, 2026 at 7:17 PM
Funders - ever wondered what it might look like to implement the TOP guidelines? Here, COS shows how they've done so with the updated (2025) guidelines in their own work as a pass-through funder.
Take aways? TOP is a modular, customizable framework that can be tweaked for a variety of settings.
Take aways? TOP is a modular, customizable framework that can be tweaked for a variety of settings.
Reposted by Felix Thoemmes
"The rewards to 'discovering' a spectacular scientific finding [in psychology] are large; the rewards to debunking frauds or deflating exaggerated claims are small if not non-existent. If these are the rules of the game, we should not be surprised at the way the game is played."
When psychologists mislead us
From Piltdown Man to the Stanford prison experiment, many famous scientific discoveries have been exposed as hoaxes or distortions
www.ft.com
January 15, 2026 at 3:51 PM
"The rewards to 'discovering' a spectacular scientific finding [in psychology] are large; the rewards to debunking frauds or deflating exaggerated claims are small if not non-existent. If these are the rules of the game, we should not be surprised at the way the game is played."
Reposted by Felix Thoemmes
Every time I prep a workshop on #RegisteredReports I have to update the number of @pci-regreports.bsky.social friendly journals. Happy to report that we continue to increase: now at 41!
January 15, 2026 at 8:35 PM
Every time I prep a workshop on #RegisteredReports I have to update the number of @pci-regreports.bsky.social friendly journals. Happy to report that we continue to increase: now at 41!
Reposted by Felix Thoemmes
Peer Review is broken because a generation of Editors were trained that peer review is sacrosanct. Thus we have Editors who are clerks, sending and re-sending manuscripts to reviewers until they are happy. That's not the job. Be an Editor, not a clerk. Use your skill and judgement. Make decisions.
January 14, 2026 at 7:59 PM
Peer Review is broken because a generation of Editors were trained that peer review is sacrosanct. Thus we have Editors who are clerks, sending and re-sending manuscripts to reviewers until they are happy. That's not the job. Be an Editor, not a clerk. Use your skill and judgement. Make decisions.