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.

POV: there's an anime girl on the conference merch table

It's that time of the semester (a magical phrase that can be used at any point in the semester)

VTheorem is just a collection of spreadsheets

New paper out in JPSP with @erichehman.bsky.social! We asked: What is the framework underlying our impressions of environments? Our large bottom-up study shows that people pay attention to 4 factors. We’re calling it the Environment Impressions Model: doi.org/10.1037/pspa...

It doesn't always go right #rstats #ggplot2

See you in half an hour on Twitch! I'll be drawing with Eggy! www.twitch.tv/myelinachemon

Hey all! I have one more collab stream coming up soon-ish, but other than that, I'm going to be going on a hiatus from streaming for a while. (Unsure how long.) Sorry- Theory Thursdays won't be making it through the full semester. Y'all take care of yourselves!

I'm live, streaming with Z and Nep! Let's learn how to actually find reliable information in the age of AI and misinformation 💪 Find us on Z's channel: www.youtube.com/watch?v=XKeo... Or Nep's Twitch! www.twitch.tv/nepenthesvt

Did the anime aura quiz thing komiko.app/anime-aura

For today's Theory Thursday, we're reading about how context predicts belief in conspiracy theories at the country level! See you soon!

Happy Trans Day of Visibility! is .na(myelin$gender) > TRUE

Last day! We're going until it's no longer March 31st anywhere in the world so you still have time!

A new paper in Science measured the prevalence of social sycophancy across 11 leading large language models. The model’s responses were nearly 50% more sycophantic than humans’, even when users engaged in unethical, illegal, or harmful behaviors. www.science.org/doi/10.1126/...

Just three days left to apply!

Quick reminder that this is happening in about ten minutes! Hope to see you there!

Wow! Thank y'all so much!

Going live in 5 minutes for a short, chill coworking stream! youtube.com/live/gjel1Ig...

Full-time research coordinator position at UC Berkeley. Ideal for folk aiming 4 graduate study in clinical/health psychology who enjoys managing data and using R. This job posting is now listed on UC Berkeley Careers! In case helpful, you can use the Job ID #85111 to find the listing.

My eternal curse of accidentally opening R Studio, and having to wait for ages for it to start up so I can close it.

We're in for a busy few weeks, so I'm bringing back the schedule!

This Friday (3/27) at 3pm Eastern, I'm going to have @leshner.bsky.social on the channel! Connor is a SUPER cool psychologist who'll be sharing some of his work on parasocial relationships with fictional characters, and doing a Q&A with chat! Hope to see you there! www.youtube.com/live/nKPERrl...

So, um... this is bad. Really bad. I looked at the letters that were translated by the AI, and the very first one I found was almost entirely hallucination. Thread:

NEW CAVE BIOME IN MINECRAFT?

we read in 20 minutes

If you are working with multilevel data, try out my new package mlstats 📦 — an #rstats package for multilevel analyses. You can create publication-ready descriptive tables like the one below (including within- AND between-group correlations + ICCs). github.com/felixdidi/ml... Details in thread 🧵↓

the ominous sound of running feet

WE GOT TWITCH PARTNER!! Thank you so much everyone for your support during the partner push!! I can't tell you how much it means to me 🥹 🧡 I'm excited to use this checkmark in the name of science (only in ways approved by the ethics committee I swear)

See you in half an hour for Theory Thursdays! Today we're reading this: www.youtube.com/watch?v=s9Mn...

Students on the job market: Post-doc opportunity at Purdue in decision-making, risk, and AI. www.higheredjobs.com/faculty/deta...

New mini model!

This could be your dream job! PhD in ecology, and English and Japanese language skills required... working for POKEMON!!! www.ign.com/articles/the...

We're live, judging your rooms. (Gosling, Ko, Mannarelli, & Morris, 2002) www.twitch.tv/psydere

Theory Thursdays is back! Today we're reading Koster et al., 2026: The Roles of Conspiracy Theories and Political Participation on Justifying Violence in the Capitol Hill Riots

🟠 Weekly Schedule - 2-8 March 2026 (all times UTC+0) 🟠 Unfortunately I won't be able to stream much due to personal obligations, but the stream is a good one!!! 📙 Saturday 7th at 17:00: Room reviews with @myelinachemon.bsky.social!! Can you make two psychologists say "wow bro you live like that?"

This is consistent with earlier psychometric work that suggests 5-7 is the best response scale options, but good to see that the finding holds up in contemporary research. Also, good to see that labeling scales whether anchored or not has little impact on findings. academic.oup.com/ijpor/articl...

What kind of video would y'all like me to make next? You can vote over here: youtube.com/post/UgkxgEu...

🔔CALLING ALL SCIENCE VTUBERS🔔 Are you a science communicator looking to join a group of passionate creators? Applications are open from 3/1-3/31! Apply here: forms.gle/DtRbrnNDtjZH...

This year’s SPSP was absolutely incredible, as per usual! I saw so many incredible talks and posters, and met so many incredible people! I also got one of most coveted items: SONA Systems promotional Tabasco sauce

Ever wanted a psychologist to analyse what your room says about you? Now's your chance! @myelinachemon.bsky.social and I will be reviewing your rooms! Submissions are open until Friday 6th March! 🔗 Submission form: forms.gle/xqS3xQXygGFS... 🎨: AstralAtropos and EggyTheNugget

NYU is hiring two postdocs at the Center for Social Media, AI & Politics: csmapnyu.org/jobs And a grant manager in Sociology with the Social Science Research Hub: uscareers-nyu.icims.com/jobs/15327/g... I'm part of both groups--please share with anyone who is interested!

Is Nursing a STEM discipline? This argument has become a point of contention in academic circles, labor, & policy creation. Why is this recognition important? Let's talk this Saturday, 2/28 with @dr-ekelus.bsky.social' 2026 Science Vtuber Symposium! Event starts at 6pm EST. See you there! #vtuber

No Theory Thursdays this week, as I'll be at a conference! I have my own agenda of course, but are there any research topics you'd like me to keep an eye out for? I'm excited to tell you all about all the cool new stuff I've learned when I get back!

It's happening! I won't be streaming this one, but if you want to watch you can watch with Captain Beezy and @psydere.com

The Big 5 test is about twice as accurate as the Meyers-Briggs Type Indicator for predicting life outcomes, placing the usefulness of the MBTI test halfway between science and astrology. Any psychologist will tell you, the Meyers-Briggs is mostly bullshit. powerofusnewsletter.com/p/why-are-we...

Social Identities Shape Belief in True & False Information In our new paper (N=1,459), people randomly assigned to a minimal groups were more likely to trust + believe ingroup members. This was only true among people who valued their ingroup or had a strong need to belong. osf.io/preprints/ps...

Be there or be square

A new article in Nature Medicine found that social connections were a surprisingly powerful predictor of a long life. Living with a partner was roughly as beneficial as exercise. www.powerofusnewsletter.com/p/debunking-...

Roses are red I bet you'll agree Which one is bouba And which is kiki

We're checking interest for recruiting a new generation of VTheorem members!