Rob Cavanaugh

Big news! 🎉 𝚖𝚊𝚛𝚐𝚒𝚗𝚊𝚕𝚎𝚏𝚏𝚎𝚌𝚝𝚜 1.0.0 for #Rstats is out. It’s a big number and it feels like a big step. I wrote a blog on the challenges of interpreting statistical models, SPEED, cool new features, the future, and a 5 year package development and writing odyssey. arelbundock.com/posts/margin...

S8E01 The True Crimes of Null Hypothesis Significance Testing Patrick and Greg find it deeply unfair that the podcast hasn’t grown popular enough to fund a Quantitude jet. So they try to make it a true crime podcast, and revisit the case of Null Hypothesis Significance Testing.

The American Journal of Speech-Language Pathology is seeking an Editor-in-Chief for Acquired Language & Cognitive Communication. We're accepting applications from people with strong editorial leadership & expertise. Email CV to kgnanasekhar@asha.org by 7/24.

New interactive blog! "Why Adjusted Regression Coefficients Are Less Descriptive Than They Look" rpsychologist.com/descriptive-...

A new paper by @dominiquemakowski.bsky.social, @mattansb.msbstats.info, me and colleagues just out! We show how to choose informative priors in Bayesian regression models using a systematic simulation study and a practical step-by-step tutorial in #Rstats and #Stan! doi.org/10.3389/fpsy... >

Pssst: to those interested in #aphasia and #storytelling I am giving my inaugural at @citystgeorges.bsky.social on Wednesday 10 June. Please come! Register here for details: www.citystgeorges.ac.uk/news-and-eve...

I've made an R package for Bayesian Rasch #psychometrics with brms models, easyRaschBayes (on CRAN), implementing simple functions to create figures and tables with model fit metrics, etc. Attaching figures from conditional item infit, item-restscore with GK gamma, and the log-likelihood criterion.

Good news everyone 🥳 Our (w @vincentab.bsky.social) primer on models as prediction machines (with the marginaleffects package) is finally officially published!> journals.sagepub.com/doi/10.1177/...

New preprint exploring how conceptual representations can be decoded in people with aphasia using fMRI. Grateful for an exciting collaboration with @jerrytang.bsky.social, @alexanderhuth.bsky.social, @smwilson.bsky.social!

📣 The 2026 SMaRT Workshops schedule is officially LIVE — with workshops covering SEM, MLM, dyadic methods, time series, machine learning, clinical trials design, and more. STATS NERD SUMMER is HERE. Come learn something. 🧑‍🎓 smart-workshops.com/workshops Please share and RP🙏 More info 👇 1/n

🚨 New Blog Post 🚨 I wrote my very first blog post 😊 This post is for quantitative researchers working with negatively worded Likert-scale items and haven't heard that these items can cause problems. I outline key issues, describe alternatives, and recommend lit. yannicmeier.de/2026/03/03/w...

I'm teaching Statistical Rethinking again starting Jan 2026. This time with live lectures, divided into Beginner and Experienced sections. Will be a lot more work for me, but I hope much better for students. I will record lectures & all will be found at this link: github.com/rmcelreath/s...

Call for papers 👇👇👇🚨 clinicalaphasiologyconference.org/cac-2026/

Nice one, from @drg.bsky.social and @jamesheathers.bsky.social link.springer.com/article/10.1...

We wrote an article explaining why you shouldn't put several variables into a regression model and report which are statistically significant - even as exploratory research. bmjmedicine.bmj.com/content/4/1/.... How did we do?

Monty Python understood p-hacking

We need to have a conversation about random seeds. Don't use 42. blog.genesmindsmachines.com/p/if-your-ra...

Any #rstats folks know the differences in lme4::glmer()'s specification for aggregated binomials? (or reading rec's?) I'd like to confirm my understanding of these: cbind(successes, failures) ~ ... successes/trials ~ ..., weights = trials successes/trials ~ ..., weights = NULL (or unspecified)

"How I, a non-developer, read the tutorial you, a developer, wrote for me, a beginner" by Annie Mueller 😅 😂 😭 anniemueller.com/posts/how-i-...

Join us Monday, September 15th from 4:00 pm to 5:00 pm ET for a talk by Simona Mancini, Ikerbasque Research Associate Professor / Neurolinguistics and Aphasia group leader at the Basque Center on Cognition Brain and Language. Register now at https://bit.ly/45LjrF1

Ever stared at a table of regression coefficients & wondered what you're doing with your life? Very excited to share this gentle introduction to another way of making sense of statistical models (w @vincentab.bsky.social) Preprint: doi.org/10.31234/osf... Website: j-rohrer.github.io/marginal-psy...

New #rstats blog up! solomonkurz.netlify.app/blog/2025-07... This is the first in a new series discussing causal inference with experimental data using multilevel models. My basic case is g-computation is the way to go.

How can we reform science? I have some ideas. But I am not sure you’ll like them, because they don’t promise much. elevanth.org/blog/2025/07...

Had a great time sharing about our test-retest, #multimodal #communication #aphasia & peer dataset at the University of Technology Sydney Graduate School of Health seminar series today. Join AphasiaBank (totally free) and get full access to our data! aphasia.talkbank.org/access/Engli...

Funding curves for K and F mechanisms (Warning: the new F mechanism "curve" is a lot)

Hey #rstats friends. I’m looking for examples of papers or posts that do a really really good job unpacking/writing about/explaining statistical results. Not just technically correct but also clear. Bonus points for using marginal effects. What’s your go to exemplar for students new to research?

New blog post! In which I explain the issue with mediation analysis and sketch out one way to deal with the underlying causal inference problem -- in just a bit over 1,000 words! If you have never found the time to read up on this, now is your chance. www.the100.ci/2025/03/20/r...

Bsky/Academia friends - any suggestions on time tracking software? Criteria: I want to spend as little time as possible actually tracking my time. Bonus if integrated with outlook. Doesn’t need to be exact. I’m just hoping for a reasonable estimate of research/teaching/service breakdown.

NIH cuts are getting the press, but VA research is getting slashed too. What do we lose when VA research goes away? Here's some greatest hits: The nicotine patch, invention of the cardiac pacemaker, first successful liver transplant, development of the CAT/CT scan prospect.org/health/2025-...

DEI initiatives are still legal. Universities need to stand their ground. A Friday gift to your university's General Counsel Office - courtesy of an all star lineup of civil rights lawyers and scholars. You're going to want to read this.

New blog post! Sometimes, when reviewing a manuscript, it's really unclear to me what precisely the authors are trying to do -- which makes it hard to evaluate the work properly. So, here's some advice for how to ensure that readers don't get lost. www.the100.ci/2025/02/17/r...

Great analysis of the indirect cost rate announcement by @stuartbuck.bsky.social

🚨 New open-access paper out now in PB&R: link.springer.com/article/10.3... We (w/ Ted Gibson, @swathikiran.bsky.social) explore how individuals with aphasia interpret sentences & whether their comprehension difficulties stem from increased expectations of noise in language input. 🧵👇

In case anyone is wondering, I did ask GPT and I don’t think it quite has a handle on DAGs yet.

Question for #rstats / #causalinference friends. I can imagine the DAG for a basic RCT and a model: PostTx ~ Group + PreTx Does the DAG change for the repeated measures equivalent? Score ~ Time (pre/post) + Group + Time (pre/post) x Group (And what if there's a prognostic variable to be added??)

Hey #StatsSky, what are you favorite papers to cite when you need to justify something that is obvious (I once had a reviewer ask we justify the use of logistic regression on a binary outcome) or when you need to push-back on silly reviewer requests (e.g., asking for p-values in table 1)?

The Aphasia Therapy Finder is a free online tool to help speech therapists find and access high quality resources and instructional videos for evidence-based aphasia therapies. If you haven’t already, please check it out and share widely.

New post on the 100% Christmas Interval -- after almost 8 years, it's time that we finally talk about CIs. www.the100.ci/2024/12/05/w...

FOQUSAphasia will be kicking off structured #writing groups again in January! Pop over to the website to learn more about our consortium on #discourse in #aphasia (broadly defined!) and register your interest. Can't wait to see you! www.foqusaphasia.com/writinggroup

Just stumbled on this and stoked to use it for future research! pubs.asha.org/doi/abs/10.1...

Register to hear 45 minutes of wisdom from the fantastic aphasia trialist, Caterina Breitenstein - *tomorrow* Wednesday 27th November 👂📝 (Alternatively, catch up on our youtube channel) t.co/ShMY0YBstj #aphasia

From the archives: Have you (like me!) wondered what the ATT means and how it's different from average treatment effects? I use #rstats to explore why we care about (and how to calculate) the ATE, ATT, and ATU #polisky #episky #econsky www.andrewheiss.com/blog/2024/03...

The Aphasia Research Library www.aphasialibrary.org is a new, free resource for creating and sharing aphasia friendly research summaries. Co-designed with people living with aphasia and researchers. Learn more here: www.dropbox.com/scl/fi/xais8...

A goal of mine for MANY YEARS has been to make plain language summaries and, where possible, #infographics of the papers coming out of the lab. Thanks to awesome undergrad RAs, here they come! Check back in as more get added! #aphasia #accessible #research www.neuralresearchlab.com/plainlang

Join the #aphasia cohort on BSky! go.bsky.app/PW5JHmQ