Yikes! “Increased oxygen consumption – for instance in areas involved in calculation – did not coincide with the expected rise in blood flow. …analyses showed that these regions met their additional energy demand by extracting more oxygen from the unchanged blood supply.” www.tum.de/en/news-and-...

Merry Chrismukkah to my readers and friends. I wrote something you might enjoy. open.substack.com/pub/michaeli...

"Behavioural scientists are increasingly calling for context as a key to addressing pressing problems caused by human behaviour. However, despite its powerful ability to generate contextual hypotheses on the basis of relatively simple rules, ecological thinking is rarely applied to human behaviour"

Do not cite an academic paper unless you’ve read it

"Most top achievers (Nobel laureates and world-class musicians, athletes, chess players) demonstrated lower performance than many peers during their early years. Across the highest adult performance, peak performance is negatively correlated with early performance" www.science.org/doi/10.1126/...

Finally, @bjoernhommel.bsky.social's and my paper introducing the SurveyBot3000 is officially out in AMPPS. It's a fine-tuned language model that guesstimates correlations between survey items from text alone. Not perfectly, but useful for search, for example. journals.sagepub.com/doi/10.1177/...

The package formerly known as papercheck has changed its name to metacheck! We're checking more than just papers, with functions to assess OSF projects, github repos, and AsPredicted pre-registrations, with more being developed all the time. scienceverse.github.io/metacheck/

Join our Replicability Project: Health Behavior! We have 55 replication studies underway, our target is 65-70. We are only recruiting for secondary data replications--i.e., using existing data to test the original question. Here's a list of studies we think could be feasible. If interested...

Paper involving LIFE alumnus Benjamin Katz and faculty @pritirshah.bsky.social out now!

Just published in Behavior Research Methods: The individual-level precision of implicit measures w/ @ianhussey.mmmdata.io 🧵👇 link.springer.com/article/10.3...

Excited to share a Registered Report in J. of Personality looking at the “perils of partialing” – led by the Bluesky-less Leigha Rose with @drlynam.bsky.social and me. (1) onlinelibrary.wiley.com/doi/10.1111/...

Diederik Stapel was a massive watershed moment in psychology. However, he was -- and let's be slightly glib here -- some guy from The Netherlands who wrote social psychology papers. The full accounting of the Eysenck case is approx, at minimum, TWO STAPELS. retractionwatch.com/2025/12/03/n...

Now we wrote a piece about many things we always wanted to say about replications. How they are used, tracked and valued by the science community. And how we can evaluate their results, whatever those may be 🤔 Read the preprint 📃 osf.io/preprints/me... Browse the Hub 🌐 forrt.org/replication-...

Are you someone "who cannot conduct or continue their work in the USA appropriately because of actual political pressure" and are interested in a two-year, funded post-doctoral fellowship at a German University to do that work? Then check out the link below! #PsychSciSky #AcademicSky #EduSky

Fadeout of cognitive training remains one of the more replicable findings in psychology in this preregistered study of 300 preschool children. Well-done study with a 4 year follow up. The language gains either faded or the control group caught up. journals.sagepub.com/doi/full/10....

In case you have missed Simine Vazire's excellent webinar yesterday, here is the link to watch it online: youtu.be/_vb1CNwC3CM Thanks again @simine.com for staying up so late and thanks to the audience for the great questions!

New paper in press at JPSP! An adversarial collaboration focusing on a large-scale test of how strongly implicit racial attitudes predict discriminatory behavior. Pre-print here: osf.io/preprints/ps...

A Review in Nature Reviews Psychology proposes that understanding violent extremism needs integration of trait-descriptive models with process-oriented frameworks that outline mechanisms in social reactivity, needs and mindsets that make some people more at risk for engaging in violent extremism. 🧪

If descriptive research is supposed to be one cure for the replication crisis, why do reviewers and editors keep downgrading descriptive research for not advancing theory? I explore this (in the context of sex and singlehood) in my latest Substack post. unromanticprof.substack.com/p/on-the-val...

“The articles in AMPPS offer, month in and month out, the invitation to practice aligning your values, intentions, and actions to do less scientific harm and reach for the methodological ceiling” Grateful to @dsbarra.bsky.social for continuing what @profsimons.bsky.social & co started at AMPPS!

1/2 New open access paper in which we apply the Nyquist-Shannon thereom from signal processing to 2 EMA datasets to figure out the optimal sampling frequency for EMA assessments. 🧪 #psychscisky #statssky www.cambridge.org/core/journal...

I think that’s basically correct, and the methods are selected for maximizing interest but also for falling into the goldilocks zone of understanding: simple enough so that readers don’t feel entirely overwhelmed, complex enough so that they can’t quite see through and understand the limitations.

that guy with the panda avi wrote a nice paper out it link.springer.com/article/10.1...

I updated the personality psychology starter pack a bit: go.bsky.app/TwHBMQi

Congratulations to @simine.com well deserved winner of the Einstein Foundation Individual Award for Promoting Quality in Research 2025 🎉 www.einsteinfoundation.de/en/media/pre...

New paper with @jzberman.bsky.social finally out!

Are you a US-based PhD student WITHOUT summer funding who is interested in adolescent development, trans youth, and/or gender? Reach out to me about applying to join my lab in Summer 2026 for the VIPS program! psych.princeton.edu/diversity/vi...

This guy’s mad about fake research, and he should be. Research incompetence, research fraud, and the promotion of fraudulent or incompetent work . . . these are not victimless crimes. statmodeling.stat.columbia.edu/2025/11/19/t...

I agree the botpocalpyse is not yet upon us, but nanobrowser is scary easy to use. bsky.app/profile/rube...

Generative AI has really been wreaking havoc on the teaching component of higher ed. But at least the researc- oh.

Always a good reminder, I still see this error quite often: "The difference between significant and not significant is not itself significant. If you want to carry out inference for a difference, you need to construct the standard error for that difference." www.econometrics.blog/post/overlap...

Arising out of discussions in @csi-research.bsky.social we conducted a Registered Report replicating Triplett’s (1898) experiment with over 400 children, showing children completed the task faster when paired with a coactor, compared to competing the task alone rdcu.be/eQwAE 1/3

New paper with @statsepi.bsky.social and @deevybee.bsky.social in which we show there's really no evidence for a link between the gut microbiome and autism www.cell.com/neuron/fullt...

Are methodological and causal inference errors creating a false impression that the gut microbiome causes autism? In this strong analysis, Mitchell, Dahly, and Bishop question the evidence. They show that triangulation in science requires multiple robust lines of research.

How do we succeed at self-control? In a new paper in @pnas.org with James Wilson, David Kalkstein, and Melissa Ferguson, we use mouse-tracking of ~47,000 decisions of long-term over short-term to show that 'willpower' is too narrow a conception of self-control www.pnas.org/doi/abs/10.1...

The Shifting 'Self' of Science's Self-Governing Capacity: Four Decades of Research Integrity Discussions in Science and Nature pubmed.ncbi.nlm.nih.gov/41199636/

Had a great day yesterday with the first annual Midwestern Personality Meeting held in our own Champaign/Urbana. H/T to @cavanvbonner.bsky.social, Muchen Xi, and Derek Simon for organizing. @chops310.bsky.social @rcfraley.bsky.social @jaime.phd @jessiesun.bsky.social @joshuajackson.bsky.social

Results from the most well-known dissonance experiment are mathematically impossible @steamtraen.eu (To get the intuition behind this analysis, imagine that we take the mean of 10 Likert scale scores. The mean could be 4.20 but not 4.25) mattiheino.com/2016/11/13/l...

Multilab replication study fails to find result in induced compliance paradigm, long seen as core evidence for the theory @vaidis.bsky.social

My Shiny app containing 3530 Open Science blog posts discussing the replication crisis is updated - you can now use the SEARCH box. I fixed it as my new PhD Julia wanted to know who had called open scientists 'Methodological Terrorists' :) shiny.ieis.tue.nl/open_science...

Out now at PSPR: our love letter to the personality trait of Openness! Amber Thalmayer and I identify and (try to) explain the many ways that openness/intellect is the weirdest & WEIRDest of the Big Five. (Big improvements over the old preprint! thx reviewers) journals.sagepub.com/eprint/HBGXT...

It takes a village to make moms feel bad for not having enough friends: www.theatlantic.com/family/2025/...

Ok, just wow. If the content of this article is right, this is depressing. We're slowly reaching the point where ~100% of what I was taught in Social Psych was either innocently wrong or plainly frauded onlinelibrary.wiley.com/doi/abs/10.1...

I’ve spent the last 8 years(!) working from the position that HiTOP relies too much on analyses of traditional diagnoses, baking in limitations of the DSM, and that we need to move to symptom-level analyses to fix it It turns out that rebuilding HiTOP from the ground up doesn’t change much 💀 1/

📣Hi #EconSky! I am on the job market! 📣 My JMP builds a 20-year panel showing an after-school care reform increased university grad. rates. 🎓 The key: moving children from home 🏠 to care centers 🧑‍🧒‍🧒, where peer interactions shaped preferences and beliefs — not skills🧮. For more: sevinkaytan.com

"only about 5% of the variance in personality can be predicted from digital footprints, and personality‐tailored messages show negligible effects on behavior... When design and evaluation flaws are controlled, the combined end‐to‐end effectiveness of psychological targeting approaches zero."

There still seems to be a lot of confusion about significance testing in psych. No, p-values *don’t* become useless at large N. This flawed point also used to be framed as "too much power". But power isn't the problem – it's 1) unbalanced error rates and 2) the (lack of a) SESOI. 1/ >

New release of PowerLMM.js! Browser-based power analysis for longitudinal models with dropout. Now includes: - Power analysis summary report - Reproducible & shareable configs (URL/JSON) - Calculations validated against R - Hypothesis region visualization powerlmmjs.rpsychologist.com

Guilty

Interesting new special issue in Psychological Assessment. Edited by Kristin Naragon-Gainey and @kstanton.bsky.social Here's their overview paper: psycnet.apa.org/record/2026-... And here's our contribution, which will win us no friends: psycnet.apa.org/record/2026-...