Tom Wallsten receiving his SMP Senior Fellow award at his fireside chat with Tim Pleskac @mathpsych.org
Dora Matzke
@doramatzke.bsky.social
Mathematical psychologist at the University of Amsterdam. Cognitive modeling and Bayesian statistics. Co-editor in chief Behavior Research Methods.
We still have a few spots left for our 2026 version of the hybrid JASP Workshop week end of August featuring a day on Discovering Statistics, a day on State-of-the-art Meta Analyses, a day on Machine learning, and two days on Bayesian hypothesis testing😊 (also single days) jasp-stats.org/workshops/
Workshops - JASP - Free and User-Friendly Statistical Software
The JASP team is excited to support four workshops this year (2026). Each of these workshops can be attended either in person (at the University of Amsterdam) or online: On Monday August 24th, we orga...
jasp-stats.org
Proud to present a breakthrough development: JASP now with fully integrated AI support. Get the heads-up and read about Alfred, Socrates, and Evelyn at www.jasp-services.com/jasp-with-fu...
JASP with Fully Integrated AI, Introduced at the Fraunhofer IPA Quality Day - JASP Services BV
TL;DR The upcoming JASP version (due to appear this week) will bring a fully integrated AI. Use an API key to hook up your own LLM and take advantage of its ability to propose and conduct new analyses...
jasp-services.com
The connectivity hypothesis, that stronger symptom interactions increase vulnerability to mental disorders, has been influential but never formally proven. Van der Mass & Waldop provide the first analytic derivation using mean-field Ising models of depression. www.sciencedirect.com/science/arti...
Analytical bifurcation analysis of mean-field Ising models reveals connectivity as a risk factor for psychopathology
The connectivity hypothesis, central to the increasingly influential symptom network approach to psychopathology, proposes that stronger connectivity …
sciencedirect.com
Finally out in Psychological Review (psycnet.apa.org/doi/10.1037/...), our update to Signal Detection Theory. We show that contrary to the prevailing Gaussian assumption, evidence distributions in recognition memory are likely minimum extreme Gumbel!
Honey, we fixed Signal Detection Theory (SDT)! In this preprint, Constantin Meyer-Grant, David Kellen, Sam Harding, and I critically evaluate the (unequal-variance) Gaussian SDT model in recognition memory and pursue the Gumbel-min model as a principled alternative: doi.org/10.31234/osf... 🧵
JASP's new GUI for Pareto charts in action. The blog post: www.jasp-services.com/jasp-for-qua... @jasp-services.com Top-notch quality control software on *all* company computers, without an annual licensing fee.
JASP for Quality Control, Example 7: The Pareto Chart - JASP Services BV
Named after Italian economist Vilfredo Pareto, the Pareto principle states that 20% of the causes (the “vital few”) are reasonsible for 80% of the consequences. Translated to the context of quality co...
jasp-services.com
Postdoc position @unimarburg.bsky.social in the project: "Bridging the Gap Between Verbal Psychological Theories & Formal Statistical Modeling with Large Language Models" (funded by @volkswagenstiftung.de) 📅Start: 01.10.2026 |⏳3 years 🔗 Job posting: uni-marburg.de/78NrWT Thanks for sharing!
There are still a few spots available for the Twelfth Model-Based Neuroscience and Cognition Summer School, which will take place from 10–14 August 2026 at the University of Amsterdam. Be quick — the remaining spots will be filled on a rolling basis, so make sure to register soon!
Applications are now open for the 12th Model-Based Neuroscience & Cognition Summer School (Aug 10–14, 2026, Amsterdam)! modelbasedneurosci.com Hands-on training in combining Bayesian evidence-accumulation models with reinforcement learning, brain–behavior modeling (EEG/fMRI), BayesFlow, and more.
Nomination DL for the MathPsych Society awards 30 April: - Estes Early Career - Senior Fellow - JMP Outstanding Paper - CBB Outstanding Paper mathpsych.org/page/awards Send all nominations to info@mathpsych.org All winners announced at the main Math Psych Conference July 2026 in Montreal
Society for Mathematical Psychology
Online conferences, news, membership functions, and information about the Society
mathpsych.org
URL for IDIC submissions: link.springer.com/journal/44504
Individual Differences in Cognition
Individual Differences in Cognition (IDIC) is an official journal of the Psychonomic Society focusing on empirical, measurement, and statistical-methods ...
link.springer.com
Please share with colleagues: The new Psychonomics journal, Individual Differences in Cognition, is accepting submissions! Please send us your empirical, measurement, & stats-methods research in all areas of cognition, including lab, daily-life, & applied work. www.psychonomic.org/general/cust...
Applications are now open for the 12th Model-Based Neuroscience & Cognition Summer School (Aug 10–14, 2026, Amsterdam)! modelbasedneurosci.com Hands-on training in combining Bayesian evidence-accumulation models with reinforcement learning, brain–behavior modeling (EEG/fMRI), BayesFlow, and more.
Model-Based Neuroscience and Cognition Summer School
Visit the post for more.
modelbasedneurosci.com
Two summer schools focused on skills for cognitive modeling and mathematical psychology will each receive $20,000 grants through this year’s William K. & Katherine W. Estes Fund. @psychonomicsociety.bsky.social Learn more about these projects by @peterkvam.bsky.social & Eric-Jan Wagenmakers.
2026 Estes Fund Unlocks New Skills With Mathematical Workshops
Two summer schools focused on skills for cognitive modeling and mathematical psychology will each receive $20,000 grants through this year’s Estes Fund.
psychologicalscience.org
Another chance to do a computational modeling of cognition summer school: modelbasedneurosci.com The school takes place August 10-14th and applications are due May 15th
Model-Based Neuroscience and Cognition Summer School
Visit the post for more.
modelbasedneurosci.com
Awesome YouTube tutorial by Johnny van Doorn, "Theory and Practice of Bayesian Inference Using JASP". Link to the video: www.youtube.com/watch?v=VhIm... Blogpost: www.bayesianspectacles.org/youtube-lect...
Theory and practice of Bayesian inference using JASP
YouTube video by OPAM Conference
youtube.com
Ten new JASP modules -- or perhaps more? The JASP Hackathon will take place Feb 16-17 at the eScience center in Amsterdam. This is our last call for applications. Teams are welcome; support to offset travel costs is available. jasp-stats.org/2026/01/27/a...
Apply for the eScience JASP Hackathon in Amsterdam: Update and Last Call - JASP - Free and User-Friendly Statistical Software
On 16-17 February 2026 the Netherlands eScience Center is hosting a two-day JASP hackathon in Amsterdam. The purpose of the hackathon is to guide participants into developing their very own JASP modul...
jasp-stats.org
Abstract submission are open for the MathPsych/ICCM 2026 conference in Montreal July 17 to 21, 2026 mathpsych.org/conference/23/ The submission deadline is February 28!
The Publications Committee is seeking applications for a new Editor-in-Chief of Learning & Behavior, with a term beginning in 2027. The application deadline is February 15. Learn more: buff.ly/AZ8DNBa
How to donate to JASP (tax-deductable from the US) jasp-stats.org/2025/12/19/j...
JASP Now Accepts Tax-Deductable Contributions from the US - JASP - Free and User-Friendly Statistical Software
For larger donations (> $500), JASP now accepts tax-deductable contributions. To donate from the US, simple visit this UvA website. As you can read there: U.S.-based donors can make tax-deductible con...
jasp-stats.org
The procedures for what, where, and how to share materials can be wildly inconsistent. A BRM paper by @haywardgodwin.bsky.social @michaelhout.bsky.social et al. introduces the Find It, Access It, Reuse It scorecard to help standardize research sharing practices. Post by Lai
Sharing, caring, and developing better practices for both
One of the greatest (and, in my opinion, most overlooked) aspects of science is that it is a process inherently founded on and driven by community. Almost all ongoing research questions are derived…
wp.me
The suspense is building: do the measurements of 20 units indicate that the Albert Heijn underfills its 1 kg bags of potatoes? An interim post on the importance of articulating your predictions *before* seeing the results. :-) www.jasp-services.com/do-the-1kg-a...
Do the 1kg Albert Heijn Potato Bags Really Contain 1kg of Potatoes? - JASP Services BV
A few days ago I announced a small quality control project where I would measure 20 bags of “1 kg” Albert Heijn (AH) potato bags to assess whether or not AH is systematically underfilling them, as som...
jasp-services.com
The Groningen Spring school on Cognitive Modeling is back! Join us from March 30th-April 2nd, 2026! www.ai.rug.nl/springschool/
Groningen Spring School in Cognitive Modeling
ai.rug.nl
PS is excited to announce the launch of "Individual Differences in Cognition” (IDIC), an open-access journal on research in cognitive psychology, science, and neuroscience. Co-Editors-in-Chief are Andrew R.A. Conway & Michael J. Kane. Manuscripts accepted this spring. More information coming soon!
Hello fellow nerds! The upcoming Australasian Mathematical Psych Conference (AMPC) is going to be on Feb 23-25, and they've just put out the call for abstracts. Details below. This is one of my favourite conferences and this year it's in Singapore(!!) which should be awesome.
Choosing the right wearable for research just got easier. Explore the new Stress in Action Wearables Database - #psynomBRM paper by Schoenmakers and colleagues
New database helps researchers choose reliable wearable devices
If you’ve ever checked your smartwatch to see how stressed you are, you’re part of a growing group of people—and scientists—turning to wearable tech for insights about the body and mind. From smart…
wp.me
Cohen’s & Fleiss’ kappa assume each subject has one category. @filipmoons Filip Moons & Ellen Vandervieren introduce a generalized Fleiss’ kappa that handles multiple categories per subject, supports hierarchies & weights, and works with missing data.
Resources for Research
This section provides brief summaries of selected resources for research that have been published in journals of the Psychonomic Society, typically Behavior Research Methods. These resources consis…
buff.ly
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.
Resources for Research
This section provides brief summaries of selected resources for research that have been published in journals of the Psychonomic Society, typically Behavior Research Methods. These resources consis…
wp.me
Researchers have validated Fabla, a secure smartphone app that lets participants record spoken diary entries in their daily lives. ✅ Higher adherence & usability ✅ 2x more language data than text diaries. #psynomBRM paper by Kaplan @deannakaplan.bsky.social and colleagues.
Resources for Research
This section provides brief summaries of selected resources for research that have been published in journals of the Psychonomic Society, typically Behavior Research Methods. These resources consis…
wp.me
💬 Donate your messages for science—without sharing the content. Dona collects only metadata, protecting privacy while enabling research. New post by Alyssa Asmar on #psynomBRM paper by Hakobyan @olya-hakobyan.bsky.social and co @drimalla.bsky.social buff.ly/rubawuB
Need to control visual similarity in your experiments? A new open database by Robbins and colleagues @michaelhout.bsky.social @haywardgodwin.bsky.social, published in #psynomBRM, maps similarity among 1,200 objects in 20 categories using MDS—validated & ready to use.
Resources for Research
This section provides brief summaries of selected resources for research that have been published in journals of the Psychonomic Society, typically Behavior Research Methods. These resources consis…
wp.me
Why do we struggle to tell apart faces of other races? New #psynomBRM paper by Shoura @moazshoura.bsky.social , Walther & Nestor @adriannestor.bsky.social uses GAN-based “knockout faces” to reveal what info we miss. #FaceRecognition 👉
The case of the missing information: Reconstructed faces and hy the other race effect happens
Ever confuse two people you’ve met, particularly if they’re both of a different race than you are? It’s likely that part of why this is hard for you is the Other Race Effect, where we find people w…
wp.me