New blogpost with a potential candidate for a robustness report! Check out our new blogpost (link below): we highlight a study on a chat tool designed to reduce political polarization as a potential candidate for a robustness report. www.journalofrobustnessreports.org/a-chat-tool-...

The plot thickens in our new blogpost...removing outliers reveals a surprise www.jasp-services.com/jasp-for-qua...

Today's HotFresh recommended paper is: Maier, M., Harris, A. J. L., Kellen, D., & Singmann, H. (2025). Decision making under extinction risk. Cognitive Psychology, 159. doi.org/10.1016/j.co...

"Always plot your data" -- an example of using descriptives *before* measuring capability of an instrument. We intend to have regular posts demonstrating how JASP can be useful for quality control and lean six sigma. www.jasp-services.com/jasp-for-qua...

Why would a for-profit company want to invest in Open-Source Software? Our collaborator, the creator of the statistics software #JASP (@jaspstats.bsky.social), will tell you why 👉 buff.ly/OOz8Y6Y...

Just out: eJAB! Happy to see Jeffreys's work get renewed attention. Blogpost: www.bayesianspectacles.org/from-p-value...

Why would a for-profit company want to invest in Open-Source Software? Our collaborator, the creator of the statistics software JASP (@jaspstats.bsky.social), will tell you why. blog.esciencecenter.nl/8c81bad92d79...

Simulation studies have a conflict of interest problem. The same team: - develops a new method - designs a simulation study to evaluate it However, the new method has to show good performance to get published. We propose living synthetic benchmarks to address the issue (doi.org/10.48550/arX...).

Just 2 hours to go to the Skeptics in the Theatre gig tonight in Bristol: thewardrobetheatre.c...

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.

Today is a day when arts degrees are worthless, but the product of those degrees is so valuable it would kill an entire industry if they were made to pay for it.

Something lovely for the weekend! Ancient Egyptian gold headband decorated with heads of gazelles and a stag between stars or flowers. Second Intermediate (Hyksos) period, Dynasty 15, c. 1648–1540 BC. 📷 The Met www.metmuseum.org/art/collecti... #Archaeology

New blog post! Why companies win by investing in open-source software. With zebra-painted cows, of course. www.jasp-services.com/why-companie...

Excited to share that I’ll be the incoming Editor of AMPPS. My first priority is building a diverse team of Associate Editors and Editorial Board members. If you’re interested, DM me or add your name via this super simple survey. cornell.ca1.qualtrics.com/jfe/form/SV_... Please share!

A chess scandal revisited -- and why Nakamura was right www.bayesianspectacles.org/a-chess-scan...

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

The new Bayesian Social Sciences section of @isba-bayesian.bsky.social has just been created: bss-isba.github.io. The committee is myself as chair, @robinryder.bsky.social, chair elect from 2027, @nialfriel.bsky.social, program chair, @monjalexander.bsky.social, Treasurer, EJWagenmakers, Secretary.

A+ content from The Onion as usual

JASP Raincloud plots! More transparency, clearer patterns, better science. New BRM paper by @vlott.bsky.social, @donvdbergh.bsky.social, @fbartos.bsky.social, @njudd.com, @jordyvanlangen.bsky.social, @lukekorthals.bsky.social, @rogierk.bsky.social, @ejwagenmakers.bsky.social et al.

While re-writing my R tutorials I removed the Bayes material from individual tutorials, rewrote it, and collected it in its own home. Just pushed the resulting tutorial `discovr_bayes` to github, it's a gentle intro to Bayesian estimation using rstanarm. github.com/profandyfiel...

Ik kan er niet bij hoe onverantwoord het is om in deze tijden van uitdagingen, problemen en crises juist het onderwijs zo achter te laten. Kennis is de enige grondstof die Nederland in overvloed heeft, maar op deze manier niet lang meer. Met dank aan kabinet Schoof. www.aob.nl/actueel/arti...

A new paper on Bayesian equivalence testing in JASP, by Henk Kiers and Jorge Tendeiro. Cool stuff. Blog post/teaser: jasp-stats.org/2025/09/12/n...

This was a true mess with a ton of AI-generated word salad slop being submitted as preprints. The field owes these moderators a huge thanks for all the work and energy! 🙏👏

Accepted for publication at Royal Society Open Science: "Using prediction markets and forecasting surveys to predict 28 replication outcomes of classic articles in social psychology and judgment and decision making" Going meta-science on our CORE team replications Details👇🧵

Just came across a new tutorial paper on the Bayesian t-test in JASP, in the Journal of Advanced Nursing (!). It looks really good. The paper (open access) is at onlinelibrary.wiley.com/doi/epdf/10...., and an ultra-short blog post is at jasp-stats.org/2025/09/06/n....

Exciting #rstats news for Bayesian model comparison: bridgesampling is finally ready to support cmdstanr, see screenshot. Help us by installing the development version of bridgesampling and letting us know if it works for your model(s): pak::pkg_install("quentingronau/bridgesampling#44")

My Bayesian Data Analysis course at Aalto is starting in 20mins. There are now 375 registered students, but as the course is not compulsory for most, I expect about 230 students to finish it. All the course material is available online at avehtari.github.io/BDA_course_A...

Jan-Willem Romeijn’s closing address from a typical European podium #EPSA25 #philsci

as editor, I'm actually signing the petition myself :) == Adopt Registered Reports at Psychological Methods - Sign the Petition! chng.it/wszLWM4KPX == e.g., look forward to exploring options for preregistration for the journal @apajournals.bsky.social @akmontoya.bsky.social

Blijkbaar is de functie van burgemeester prima te combineren met dat van statistiekdocent. Straks blijkt het niet AI te zijn die mijn baan ingepikt heeft, maar een burgemeester...

#OnThisDay, 24 Aug 1896, an unknown woman cyclist has a beer at the bar in New Jersey - making headlines in the New York Times. Chapeau! #WomenInHistory #OTD #History #WomensHistory #Cycling #AmericanHistory 🗃️

Everyone should follow this lead. Incredibly simple to switch with minimal friction. #linux

Our review paper with @profandyfield.com just got accepted to PeerJ 🎉 osf.io/preprints/ps... We review OLS models and their assumptions, discuss statistical practice, and offer some practical tips on how to use robust methods with preregistration to reduce unnecessary analytic degrees of freedom.

I’m about halfway through this update (first 11 tutorials are done). I think they’re a lot better. Using a consistent @easystats.github.io workflow throughout will - I think - massively reduce the cognitive load for students. Looking forward to road testing in autumn term.

Understanding the truth about how technology shapes our lives shouldn’t be a luxury but a public right. The Coalition for Independent Technology Research is building collective power to defend the right to research and free information. independenttechresearch.org/citr-report-...

We generated images using this technique (see examples). Each pair differs in real-world size but are otherwise identical* in lower-level features, because they’re the same image down to the last pixel. (*avg orientation, aspect-ratio, etc, may still vary. ask me about this!)

Because it’s time for warcoffee and a treat. Life goes on in Kyiv. We don’t need red carpets to feel strong.

Nature: Cancelling mRNA studies is the highest irresponsibility go.nature.com/3HDx4wD cc Jay Bhattacharya

What's the origin of 'soul'? No living soul knows. The Germanic ancestor of 'soul' can be reconstructed, but attempts to reconstruct its further origin or find cognates have only been speculative. My new graphic sums up these theories and shows the cognates of 'soul' in the sister languages:

Do you see what’s happening right now? putin is ecstatic. He’s the star of the show. All eyes on him. He’s not a dictator today. Not a murderer. Not the man who’s been killing us for 3.5 years. Thanks to Trump - He feels like a king. And that’s the most disgusting part on this show

Deze kwam uit mijn genen - ik bedoel tenen.

Fair coins tend to land on the same side they started: evidence from 350,757 flips. That's the title of our paper summarizing ~650 hours of coin-tossing experimentation just published in the Journal of the American Statistical Association. doi.org/10.1080/0162...

APS's journal AMPPS has accepted its first manuscript through a collaboration with a nonprofit that offers decentralized, community-driven peer review. @dsbarra.bsky.social 

Goed stuk over de onwetenschappelijke praktijken van Griet Op de Beeck en de drogreden van de VPRO dat we haar op haar interviewkwaliteiten moeten beoordelen.

New paper with @richarddmorey.bsky.social now out in JASA, where we critically examine p-curve. Below is Richard’s excellent summary of the many poor statistical properties of p-curve (with link to paper). I wanted to add some conceptual issues that we also tackle in the paper.

We'll give you the details of how we obtained our results WHEN YOU SERVE US WITH THE SUB-POENA.

Paper drop, for anyone interested in #metascience, #statistics, or #metaanalysis! @clintin.bsky.social and I show in a new paper in JASA that the P-curve, a popular forensic meta-analysis method, has deeply undesirable statistical properties. www.tandfonline.com/doi/full/10.... 1/?