Have you seen MATILDA (matilda.fss.uu.nl)? Which stands for Measurement, Analysis & Theory for Intensive Longitudinal Data. MATILDA is a website with educational articles that help researchers align theory, measurement, and analysis when studying processes using intensive longitudinal data.

For detecting careless respondents, if interested in learning how several univariate cutoffs for outlier statistics (e.g., Mahalanobis distance, person-total correlation) can do, Michael Ilagan, Wenshuo Li and I also developed an #rshiny app to teach about this. falkcarl.shinyapps.io/BotApp2/

Lab website redone with #quarto: www.psych.mcgill.ca/perpg/fac/fa... The new one should make blog posts or tutorials easier. Includes new sections on software 💻 and selected teaching resources 🏫. News is temporarily disabled, but I hope to have it back up and running soon.

I'm back with the biggest release of quarto-revealjs-editable to date 🙌 You no longer have to add .editable to anything, now you just click the Modify button, click on the element you want to move/edit and it becomes editable. emilhvitfeldt.com/post/quarto-... #quarto #slidecrafing

Updated a Shiny app for learning about outlier statistics for detecting random and (now) patterned responses. Has LazR from Biemann et al (2025) and Autocorrelation from responsePatterns R package for patterned responses. falkcarl.shinyapps.io/BotApp1/ #rstats #rshiny #DataQuality #SurveyResearch

What if you dropped a bowling ball in the Mariana Trench? Watch the latest What If? video in collaboration with @minuteearth.bsky.social! www.youtube.com/watch?v=FYoH...

What if you dropped a bowling ball in the Mariana Trench?

YouTube video by xkcd's What If?

youtube.com

The new blimp / rblimp is SO much faster for those who are considering giving it a try! #rstats www.appliedmissingdata.com/blimp

More details about the Bayesian Workflow book and case studies now available on the book web site avehtari.github.io/Bayesian-Wor... (but you still need to wait a bit for the book)

Richard McElreath 🐈‍⬛@rmcelreath.bsky.social · 4mo ago

I would have preferred to have the "draw the rest of the owl" meme on the cover, but this will do. Seems like it is on schedule, and we'll leave some typos so you know we didn't write it with AI.

Anyone know of an #rstats package that can generate nonnormal data with a specified skewness and kurtosis that's also available was a #wasm binary (i.e., for use with #webr or #shinylive)? quadprog is a dependency of everything I'm aware of. If not, guess I'm just coding something.

Paper from Sean Devine, Ken Fujimoto & I: psyarxiv.com/p2n8a/ In extensive simulations, we evaluate model selection using DIC, WAIC, and LOO-CV with marginal and conditional likelihood for Bayesian linear multilevel models. Happy to hear journal recommendations & feedback!👍 #brms #rstats #bayes

I have blocked exactly one person from a project on GitHub. Strong contender for #2 today: a Posit Senior SWE who pointed Claude at my portable-r-macos / portable-r-windows scripts, opened a PR, and linked my work as "existing art." That's not reference. That's laundering. Worse no signing on mac.

Just curious if anyone has ever tried shinylive at the same time as webexercises and whether the two play nicely with each other? #rstats #rshiny #shinylive

While teaching a course on Item Response Theory this semester, I created a Shiny app for visualizing some polytomous item response models: falkcarl.shinyapps.io/polytomous/ This is an initial draft, so comments/questions/suggestions are welcome! #Psychometrics #RShiny #IRT

Now I'm also looking for a research software engineer to implement a pile of research results to R packages loo, posterior, bayesplot, projpred, priorsense, brms or/and Python packages ArviZ, Bambi and Kulprit. Apply by email with no specific deadline (see contact info at users.aalto.fi/~ave/)

Aki Vehtari@avehtari.bsky.social · 10mo ago

I'm now also looking for a postdoc with strong Bayesian background and interest in developing Bayesian cross-validation theory, methods and software. Apply by email with no specific deadline (see contact information at users.aalto.fi/~ave/). Others, please share

FYI. The House of Commons committee where this went down also records the meetings: www.ourcommons.ca/Committees/e...

Elaine Hyshka@ehyshka.bsky.social · 10mo ago

If you are a Canadian scientist 🧪 alarmed by the unfair targeting of academics working on research related to EDI in the US ➡️ Turn your attention to our own House of Commons' Standing Committee on Science and Research and consider signing this open letter: docs.google.com/forms/d/e/1F...

I'm now also looking for a postdoc with strong Bayesian background and interest in developing Bayesian cross-validation theory, methods and software. Apply by email with no specific deadline (see contact information at users.aalto.fi/~ave/). Others, please share

Aki Vehtari@avehtari.bsky.social · 10mo ago

I'm looking for a doctoral student with Bayesian background to work on Bayesian workflow and cross-validation (see my publication list users.aalto.fi/~ave/publica... for my recent work) at Aalto University. Apply through the ELLIS PhD program (dl October 31) ellis.eu/news/ellis-p...

When there is a random way to do something, there is a less random way that is better but requires more thought. In this case, regression models that make no sense don't belong in a multiverse analysis. An inferential regression without a causal justification is like an opinion without reasons.

Joe Bak-Coleman@jbakcoleman.bsky.social · 10mo ago

Great piece on the absurdity of brute force multiverse analyses. www.pnas.org/doi/10.1073/...

Anyone else using #shinylive with #rstats having trouble getting nice plotting packages like #ggplot2 or #plotly to work? Curious what work arounds there are. Many thanks! ( #shiny works fine)

Join us as we explore our options, tomorrow….

There is still time to submit a proposal to host IMPS 2028! Visit www.psychometricsociety.org/hosting-oppo... for details. #QuantitativePsychology #Psychometrics

I clearly had a lot of thoughts/feelings from reading Terry's blog post, so I wrote one of my own It ended up being a bit of a stream-of-thought post but I think it captures some of my worries benharrap.com/post/2025-10... #statssky #episky #academicsky

I can only play in your back yard if you invite me in – Ben Harrap

benharrap.com

Terry McGlynn@hormiga.bsky.social · 10mo ago

Y'all. I just got ChatGPT to do everything in R for this manuscript. I mean EVERYTHING. And it's all legit and reproducible. I'm shook. How are we mentoring our trainees in statistics now? Who needs to learn coding in R line by line, and who doesn't? scienceforeveryone.science/statistics-i...

Would sure be funny to embed certain keyword combinations into assignments to mess with cheating students who then copy the questions into an LLM prompt.

Paula Simoes@paulasimoes.bsky.social · 10mo ago

A small number of samples can poison LLMs of any size www.anthropic.com/research/sma...

Does anyone else accidentally click on reactions to emails on #Outlook for Office 365? Why can I react to emails? 🎉

🚨 R developers, apply now! The R Consortium ISC has opened its 2025 Cycle 2 grant window! 💡 Got an idea that helps the R community? Package it, submit it, and get funded. 🗓 Deadline: Oct 1, 2025 📍 Apply: r-consortium.org/all-projects... Make your mark on #rstats 🚀

WE ARE HIRING! 2 Lecturers in Quantitative Social Science. Want a friendly interdisciplinary department in one of the world's most vibrant cities? This just might be for you. Apply by: 10 Oct www.ucl.ac.uk/work-at-ucl/...

Excited to announce that our paper with @pingfanhu.bsky.social and Bogdan Bunea on our #rstats package {surveydown} is now published in @plosone.org The paper compares the benefits of using a code-based approach to survey design, leveraging #quarto and #shiny journals.plos.org/plosone/arti...

surveydown: An open-source, markdown-based platform for programmable and reproducible surveys

This paper introduces the surveydown survey platform. With surveydown, researchers can create surveys that are programmable and reproducible using markdown and R code, leveraging the Quarto publicatio...

journals.plos.org

The University of Central Florida College of Medicine is looking to hire a Psychometrician (Assistant or Associate Professor of Medicine). Learn more: www.click2apply.net/OJJDagiDEDql... #NCMECareers

Psychometrician (Assistant or Associate Professor of Medicine)

The Opportunity The University of Central Florida College of Medicine (UCF-COM) is seeking a Psychometrician. This is a full-time (1.0FTE) non-tenure earning assistant professor of medicine or associa...

click2apply.net

I'd also be curious to know what people use

Drew Engelhardt@amengel.bsky.social · 12mo ago

Anyone have favorite options for printing SEM output in R like semTable that work for v4.5.1? My Googling has turned up little.

Bridge sampling estimates marginal likelihood. A recommendation has been to use an order of magnitude more posterior draws than otherwise. With Giorgio Micaletto we show how to compute MCSE for bridge sampling to decide how many draws are actually needed arxiv.org/abs/2508.14487

Bridge Sampling Diagnostics

In Bayesian statistics, the marginal likelihood is used for model selection and averaging, yet it is often challenging to compute accurately for complex models. Approaches such as bridge sampling, whi...

arxiv.org

Considering EBICglasso for network modeling, but have a lot of missing data? A recent paper (accepted at Multivariate Behavioral Research), osf.io/preprints/os... may help. The paper is a bit technical, so a new blog post focuses on software: www.psych.mcgill.ca/perpg/fac/fa... #rstats #quantpsych