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/)

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

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

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.

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

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.

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...

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

I'd also be curious to know what people use

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

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

This is the definition of a failed social media platform.

My dept at the University of Auckland (NZ) will be hiring in social psych at the junior level this cycle. Official ad to follow It's a big research-active dept with fun colleagues, plus you can commute to uni on a boat, paired with a pleasant walk thru Albert Park (this pic from heading home today)

Mark your calendars: IMPS 2026 will be at Yonsei University in Seoul, Republic of Korea, from July 21-24, with short courses on July 20. Updates will be posted to the conference website: www.psychometricsociety.org/imps-2026 #IMPS2026 #Psychometrics #QuantitativePsychology

Happy to announce ✨quarto-revealjs-editable✨ This fully supersedes the imagemover extension, as I back then didn't realize the potential. You can now also move, resize, change font size and alignment for text in your slides github.com/EmilHvitfeld... #quarto #slidecrafting

Now on CRAN, ggdiagram is a #ggplot2 extension that draws diagrams programmatically in #Rstats. Allows for precise control in how objects, labels, and equations are placed in relation to each other. wjschne.github.io/ggdiagram/ar...

I've written a short blog post about the process of switching my personal website from Hugo to Quarto, some of the tricky things, and advice for those thinking about doing the same! Link: nrennie.rbind.io/blog/hugo-qu... #RStats #QuartoPub

If you do survey research with Likert-type items and worry about random responders, Michael John Ilagan & I made a Shiny app we think some of you may like. falkcarl.shinyapps.io/BotApp1/ #SurveyResearch #DataQuality #Psychometrics #OnlineSurveys #SurveyBots #RandomResponders #rstats #Shiny

How do researchers detect random responders or survey bots these days? I am interested in knowing what approaches are used. On Bluesky, I have seen work by @dr-ashley-brooks.bsky.social (osf.io/za8v6_v1) and from @sara-suzuki.com‬ about Prolific people failing Qualtrics scores...

#webR now has shareable links! Just like #Shinylive's editor, you can instantly share #rstats code snippets with colleagues. Thanks to @gws.phd (webR creator) for adding this awesome feature to webR Latest (0.5.4-dev)! Try it out with this demo snippet: webr.r-wasm.org/latest/#code...

IMPS 2025: check out the society website for the recently updated schedule at a glance and current list of poster assignments! www.psychometricsociety.org/imps2025-sch... Any further updates will be posted to the society website. #IMPS2025 #QuantitativePsychology #Psychometrics

Michael John Ilagan, my PhD student, defended his dissertation and is looking for the next opportunity. linkedin.com/in/michael-john-ilagan Michael can accomplish anything; hire him to have a very talented and versatile statistician, data scientist, ML engineer, psychometrician! Highlights...🧵

{quarto-webr} v0.4.3 "Bumpity Bump" is now available - a maintenance release that bumps to R 4.5.1 by default (via webR 0.5.2). github.com/coatless/qua... #RStats #Quarto #WebR

🚨 Big milestone for Rdatasets 🚨 The web archive now hosts 3400+ free and documented CSV datasets. Fantastic for teaching and testing! And {Rdatasets} is a new #RStats 📦 for easy download and search Web archive: vincentarelbundock.github.io/Rdatasets R 📦: vincentarelbundock.github.io/Rdatasetspkg

New paper in Psychometrika from Yon Soo Suh, myself, & Li Cai. We introduce SISQUOC: a Sequential Importance Sampling algorithm to Quickly and Uniformly Obtain Contingency tables. This algorithm opens the door to fitting propensity analysis of categorical data models. Preproof here: bit.ly/3SYilhO

Thanks to @itemrespwarehouse.bsky.social !

We are pleased to introduce the IMPS 2025 Student Datathon! Examine a dataset from the Item Response Warehouse for a prize of $2,500. Registration open until June 6, 2025. www.psychometricsociety.org/imps2025-dat... #IMPS2025 #Psychometrics #QuantitativePsychology

Presenter and early bird discounted registration for IMPS 2025 has been extended until May 22! See here: www.psychometricsociety.org/imps2025-reg... We look forward to seeing you at IMPS 2025! #IMPS2025 #Psychometrics #QuantitativePsychology

🚀 PhD Position in Psychological Methods at @unimarburg.bsky.social 📅 Start: 01.10.2025 | 💼 50% TV-H E13 | ⏳ 3 years Focus on statistical modeling—Bayesian statistics, cognitive modeling, psychometrics. 🔗 Apply now: uni-marburg.de/r5dKTr 🔄 Thanks for sharing!

For all stats people out there: or neighbours at Psychology are looking for a full prof in Methods and Statistics: www.academictransfer.com/nl/jobs/3519... #metascience #stats

Psych Stats Instructors: please consider participating in a 15-min anonymous survey about best practice and teaching methods. Closes May 31st. For details see: ryersonpsych.co1.qualtrics.com/jfe/form/SV_... Sharing appreciated!

Registration for the 2025 International Meeting of the Psychometric Society (IMPS) is open! www.psychometricsociety.org/imps2025-reg... #IMPS2025 #Psychometrics #QuantitativePsychology

New updates to Psychometrika! - Theory & Methods now also accepts focus articles with discussion/rejoinder - Book Review is now Review Section, and includes more topics (lit, book, software, media) - ARCS is now “Applications and Case Studies,” and includes software as a category

New: More than 200 Canadian tech founders, execs and investors are calling on their peers to continue DEI programs as pressure mounts to cull them. "Powerful forces in our tech sector want to reshape Canada in the image of those who see inclusion as an obstacle, not an advantage."

Have you submitted an abstract for IMPS 2025 yet? Join us at the University Minnesota in July 2025! Submissions close after Feb 28. www.psychometricsociety.org/post/imps-20... #IMPS2025 #psychometrics #quantitativepsychology

Congratulations to 2025 Award Winners! Career Award: Shizuhiko Nishisato Early Career Award: Maria Bolsinova Dissertation Prize: Mark Himmelstein www.psychometricsociety.org/article/cong...

The Annie T. Randall Innovator Award was established to recognize early-career statistical innovators. Individuals from underrepresented and historically excluded groups in statistics are encouraged to apply. Submissions are due by March 15. www.amstat.org/your-...

We just launched a 16TB archive of every dataset that has been available on data.gov since November. This will be updated day by day as new datasets appear. It can be freely copied, and we're sharing the code behind it to help others make their own archives of data they depend on.

The Psychometric Society has new social media accounts! Follow us, repost us, like us, on your favorite platform: LinkedIn: www.linkedin.com/company/psyc... Facebook: www.facebook.com/pmetricsoc/ Bluesky: bsky.app/profile/pmet... Instagram: www.instagram.com/psychometric... X: x.com/pmetricsoc

The Psychometric Society invites applications for the position of IMPS Proceedings Editors for the IMPS 2024 proceedings. Please see the society website for more details: www.psychometricsociety.org/call-for-edi... #psychometricsociety #psychometrics #quantitativepsychology

The IMPS 2025 abstract submission portal is open! Deadline: Feb 28, 2025 www.psychometricsociety.org/post/imps-20... #IMPS2025 #PsychometricSociety #Psychometrics #QuantitativePsychology