Hello all! I’m recruiting a postdoc to work with my lab and I on methods for analyzing intensive longitudinal timeseries of psychological phenomena, with particular focus on measurement and optimization of interventions! Start would be August 2026

The one simple trick to avoid > 75% of bad uses of AI that AI ethicists don't want you to know! Read a science fiction book and if your goal aligns with the bad guys in that book don't do it. -- Credit @stellaathena.bsky.social on the Bad Site.

Me, moments before I unknowingly hit reply all on the faculty listserv: "We are currently clean on OPSEC"

In 2018 I gave a presentation on research data management to a group of graduate students. Not surprisingly, most of the problems and solutions I discussed 7 years ago, are still the same problems and solutions I see today. #databs

🧠 Applying to Psychology PhD programs? Join @UVA's virtual panel April 14 at 12:30PM! Current faculty & PhD students will share tips on choosing programs & creating competitive applications. All welcome, especially those from underrepresented groups. Register via QR code! #PsychPhD #GradSchool

This year I have the honour of serving the Psychometric Society as its President, and we have been working hard on the program for the International Meeting of the Psychometric Society (IMPS) psychometricsociety.org/imps-2025 You can submit an abstract here: imps2025.exordo.com

"You want to stop, but the amount of time and energy you’ve put into this makes it hard to quit."

1/3 Tutorial on exploring ecological momentary assessment data is online at AMPPS, with: - Accessible ways to visualize data for better understanding - Models to get some first insights - Further reading boxes for more advanced topics - Reproducible pipeline you can run over your own data

New preprint by Anja Ernst and me on Modeling Qualitative Between-Person Heterogeneity in Time-Series using Latent Class Vector Autoregressive Models (osf.io/preprints/ps...)

Can I interest y'all in a preprint in these trying times? My student Joy Qiu recently completed work on using ensembles of LLMs to perform coding of free text response data. A 🧵

Related to the recent discussion on VAS measurement in EMA, my student Siqi Sun recently submitted some work we did on understanding the measurement properties of more traditional Likert scales vs. VAS scales: A 🧵

Hiring alert!! Looking for a PhD level research scientist and a data manager! Come join us!

My favorite journal going Open Access is not something I had on my 2025 list! Fantastic news!

They cant get my data if i am Fully Dissolved in a bath tub full of sodium hydroxide

Me, a methodologist who will be analyzing deidentified data, filling out 300 questions to get an IRB reliance agreement in place.

I really appreciate the number of reasonable posts from super senior developers who talk about how they’re using LLMs, which tasks they’re good for in software dev, and which don’t make sense at all. crawshaw.io/blog/program...

Also, 😉

Whole thread has great points, but this particular bit captures it: AI tools simplify (frankly, to an astonishing degree) the fiddly bits of coding, e.g. writing tests, data kludging, etc. but unless you know what you want it to do, and can evaluate it on your own, it’s not magic.

This is going to be like that time that they trained an algorithm to read MRIs and look for tumors, and they got excited by the 99% accuracy, before realizing that all the training images had an arrow pointing to the tumor. They trained an algorithm to read MRIs and look for an arrow.

🚨I'm looking for PhD students to join my team in the Connected Data Hub School of Data Science at the University of Virginia We develop cutting-edge methods in network science and data analytics to reveal how networks shape the world and drive collaboration, innovation, and national security.

Are you a quantitative psychologist looking for a teaching-focused permanent position? I have good news for you! We're hiring: elxw.fa.em3.oraclecloud.com/hcmUI/Candid... Great department and Edinburgh is a fantastic place to live. Happy to answer any questions about working and living here

I’m shocked, shocked I tell you!

NO, says the subjectivist Bayesian, it belongs in minds. NO says the die-hard frequentist, it belongs in hypothetical infinite sequences. NO, says the propensity theorist, it belongs in magic metaphysical bullshit. I rejected those answers <curtain opens to reveal Logical Foundations of Probability>

Today I’m thankful for my wonderful spouse, my amazing daughter and the Central Limit Theory, all of which provide convenient excuses to get out of things I don’t want to do (meetings, math).

John Searle: In my 1980 paper I present the metaphor of the Chinese room as a cautionary tale about ascribing intelligence to computational systems. Tech Companies: At long last, we have created an Artificial Intelligence from the classic philosophy text "The Chinese Room is not an Intelligence"

Remember when I said I was out of memes? I lied. MCMC goes brrrrrrr:

I'm here to do three things: 1. Share preprints from my lab 2. Share incredibly niche stats memes 3. Get into fights about quant methods And I'm all out of memes (for the moment)