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cchapman.bsky.social
Researcher, psychologist. Author "Quantitative User Experience Research" (w/Rodden), "R | Python for Marketing Research and Analytics" (w/Feit & Schwarz). Previously 24 yrs @ Google, Amazon, Microsoft. Personal account. Blog at https://quantuxblog.com
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Google and Meta search both report that Cape Breton Island has its own time zone 12 minutes ahead of mainland Nova Scotia time because they are both drawing that information from a Beaverton article I wrote in 2024

I blogged with some #rstats simulations about the topical question of whether changes in the proportion of p values that fall between 0.01 and 0.05 tells us much about the replication crisis. I conclude 'probably not'. (1/n) freerangestats.info/blog/2025/06...

I think LLMs / associational models could be useful in a context that centers human judgment and uses association to surface source material the reason we don't see those approaches with "AI" companies is that "AI" isn't about the technology. It's a political project to centralize power

“It’s not novel that Meta is undermining your privacy. But the tactics the researchers identified were so scuzzy they surprised even those digital privacy experts who have seen every trick in the book.” wapo.st/45hNMeB

🚨 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

Four percent of the sand on Normandy beaches is shrapnel that has been broken down over the decades into sand-sized chunks. See the smooth sphere? That's shrapnel, sanded down to a smooth, microscopic ball. #WW2 #HISTORY

What I find amazing is not a scam based on AI hype, or gullible corporate investment ... but that it lasted 8 years (!) Motivated belief is very powerful 🤦

When are AI/ML models unlikely to help with decision-making? statmodeling.stat.columbia.edu/2025/06/05/w...

I've had to quote the Mythical Man Month twice today. I'm surprised at how difficult it is to really ingest the simple principle of that book. I see super smart folks have a knee jerk desire to throw bodies at projects when they start lagging behind. And, of course, that doesn't work at all.

I’ve been following this project for a while and am excited it’s finally out - a stark contrast from the opacity of the AI industry and demonstrates why it’s important to publish research openly, with methodological rigor and real insight into how training datasets are built

Updated my "AI, LLMs, and bullshit" mini-lecture post in my dataviz class with a new section on vibe coding datavizs25.classes.andrewheiss.com/resource/ai-...

Is there a good paper that thinks carefully through how to apply the rubin causal modeling framework to within-subjects experiments? I always feel like I am doing a lot of hand waving when asserting causality for those designs.

The religion team is a fantastic bunch of people who do some of the Center’s most interesting and innovative work. This is an amazing opportunity for someone looking to start a career in this field!

A counterexample for anyone hoping that LLMs will help with "summarizing data". (Content warning for some of the supposed themes that ChatGPT invented.)

"For now, the most comprehensive protection against Meta Pixel and Yandex Metrica tracking is to refrain from installing the Facebook, Instagram, or Yandex apps on Android devices."

"ChatGPT isn't its own, unique problem. It's a symptom of a totalizing cultural paradigm in which passive consumption and regurgitation of content becomes the status quo." www.404media.co/teachers-are...

I’ll be in Korea for 3 weeks starting June 10! Giving 6 talks (Korea University x2, Yonsei, KAIST, indie bookstore, Korea Foundation for Advanced Studies), 1 workshop (Korea University), and joining 3 panels (Yonsei, PMRC, SNU).

I made it 4.3 years without catching COVID ... until I went to a group event this week and did not wear a mask. Now I have it. I'm doing OK so far .. helped, I'm sure, by 6 rounds of vaccination🙏 But I will echo the advice to mask up! 😷

STOP asking AI systems for "opinions" and presenting their outputs as reasoned responses. AI systems don't think or reason. They don't have "opinions." All they're doing is rewriting/recreating answers cobbled together from whatever materials were fed to it.

Product backlogs often become counterproductive, acting as a "prison" for ideas and leading teams to confuse busyness with progress, rather than focusing on delivering meaningful work. medium.com/@christian.h...

mums & dads!! we're looking for ~20 families to participate in a study like this one if you have a baby (up to 4 months old) & live in AoNZ you are eligible. super fun, you get music, toys & $$, and also fancy graphs of your baby's data in the study sign up at themusiclab.org/signup

Honoring those who gave all on this Memorial Day.

seen on insta 😂

When signing up, be sure to choose the “Audit” option for the free class. You won’t get credit, but you’ll learn so many cool things about our government! Think of it as a history and civics redo. 👍

@salesforce.com is hiring 2️⃣ #ResponsibleAI or #Ethical Red Teamers! 🎉 One is at the Senior level & the other at Principal level. If you're a data scientist with experience adversarially testing #AI models, systems, and/or agents, apply below! 🙌 salesforce.wd12.myworkdayjobs.com/External_Car...

Yes, I got lots of help from many people, twice. I’m sure I didn’t appreciate the extent of Help or number of people. I think a lot about job candidates I’ve seen who didn’t get TT jobs/got jobs w/greater obligations, lower salary, lower resources, etc. I work/worked hard but also feel very lucky.

Very bored of seeing papers like this

The Handbook of Social Psychology is celebrating its 90-year history by making its new 6th edition open access and free to download for everyone, in what its editors hope will become a model for future academic publications. #Psychology #SocialPsychology

I cannot emphasize this enough: Please do not use AI tools as therapy. Not only is it not a good replacement for actual therapy, but your chat logs could be shared with the government, and I don't think you need a reminder that especially right now in the US, that could put you in danger.

Critical humanities discourse on AI will be doomed if it does not come up with better metaphors. Corporate AI is not a «cognitive entity» or some «other intelligence». It's a political project and a system of surveillance, extraction & exploitation 1/

"AI" uses em-dashes because the writers whose (appropriated) work it's trained on use them. I use them a lot, personally, and of course just about everything I've ever written was chucked into the training bin without my consent or assent. So, you know, whenever you see an "AI" em-dash, think of me.

NEW paper! 💭🖥️ “Combining Psychology with Artificial Intelligence: What could possibly go wrong?” — Brief review paper by @olivia.science & myself, highlighting traps to avoid when combining Psych with AI, and why this is so important. Check out our proposed way forward! 🌟💡 osf.io/preprints/ps...

This needs to be repeated loudly and often. I hear fellow tech folks all the time say things like, "LLMs actually understand this kind of data". Instead: "LLMs generate grammatical statements more or less related to this kind of data."

For those curious, you can run the Powershell command Disable-WindowsOptionalFeature -Online -FeatureName "Recall" -Remove to remove this. Get-WindowsOptionalFeature -Online -FeatureName "Recall" lets you check the status of the feature on your computer.