Christopher Chabris @cfchabris.bsky.social · 31/07/2026Star Special Military Operations, Episode IV: A New-to-you Hope 000
Christopher Chabris @cfchabris.bsky.social · 08/07/2026🚨POSTDOC HIRING! Our lab in the Dept of Bioethics & Decision Sciences in Geisinger's College of Health Sci. is hiring a Postdoc in the Behavioral Science of Health-Related Beliefs, Judgment & Decision-Making. Start date asap. Can be remote from anywhere in U.S. www.michellenmeyer.com/uploads/2/2/... 021
Reposted by Christopher ChabrisMichelle Meyer @michellemeyer.bsky.social · 18/05/2026Today I'm thrilled to welcome Paul Han to the Department of Bioethics and Decision Sciences in the @geisingercollege.bsky.social at @geisinger.bsky.social. A recent Fulbright Scholar who studies medical decision-making, uncertainty, and risk communication, Dr. Han joins us from NCI/NIH. 031
Christopher Chabris @cfchabris.bsky.social · 11/05/2026Thank you Wilma for reading and posting about our paper! 010
Reposted by Christopher ChabrisMichelle Meyer @michellemeyer.bsky.social · 07/05/2026🚨New paper from our Behavioral Insights Team🚨: we randomized patients without activated patient portals who had new lab results to receive one of two emails emphasizing a key portal feature—immediate access to results—or to no contact beyond usual system efforts to encourage enrollment. 142
Reposted by Christopher ChabrisMichelle Meyer @michellemeyer.bsky.social · 30/04/2026🚨New paper! eConsent can promote cost-effectiveness & equity in research, but how does it compare to traditional consent w/r/t informedness? In this RCT, we tested the Sage Bionetworks eConsent developed by @megdoerr.bsky.social & @wilbanks.bsky.social, used by, eg NIH All of Us & Apple ResearchKit. 195
Reposted by Christopher ChabrisJeff Linder @jefflinder.bsky.social · 14/11/2025In time for the @pennchibe.bsky.social meeting, our paper about how the number of alternatives influences physician decision-making. #MedSky #BehaviouralScience jamanetwork.com/journals/jam...jamanetwork.comMultiple Suggested Care Alternatives and Decision-Making of PCPsThis randomized clinical trial investigates whether providing primary care physicians (PCPs) with 1 vs 2 or more appropriate treatment alternatives in a choice set has an effect on the odds that they ... 295
Christopher Chabris @cfchabris.bsky.social · 06/11/2025An important set of ideas to counter the growing burden of fraudulent scientific publications: royalsocietypublishing.org/doi/10.1098/...royalsocietypublishing.orgReformation of science publishing: the Stockholm Declaration | Royal Society Open ScienceScience relies on integrity and trustworthiness. But scientists under career pressure are lured to purchase fake publications from ‘paper mills’ that use AI-generated data, text and image fabrication. The number of low-quality or fraudulent publications ... 063
Reposted by Christopher ChabrisFelipe A. Araujo @felipeaaraujo.bsky.social · 15/10/2025Very happy that our paper is officially out at Management Science! Ever wondered if on-the-job experience can mitigate ubiquitous behavioral biases? Well, wonder no more... With amazing serial co-authors @cfchabris.bsky.social and @michellemeyer.bsky.social pubsonline.informs.org/doi/10.1287/...pubsonline.informs.orgThe Effect of On-the-Job Experience on Base-Rate Neglect: Evidence from Medical Professionals | Management Science 051
Reposted by Christopher ChabrisArt Markman @abmarkman.bsky.social · 24/09/2025Psychology research finds people are often overconfident. Open questions in that work that were addressed in a cool paper studying tournament chess players. My latest for @psychtoday.bsky.social with a shout-out to @cfchabris.bsky.social and Daniel Simons. www.psychologytoday.com/us/blog/ulte...psychologytoday.comUsing Chess to Study OverconfidenceA new study on chess players explored people's overconfidence in a domain with clear measures of performance and the opportunity for people to get feedback. 051
Reposted by Christopher ChabrisNeuroskeptic @neuroskeptic.bsky.social · 17/08/2025Most people are overconfident even in the face of extensive, objective performance feedback: "Overconfidence persists in tournament chess, a real-world information environment that should be inhospitable to it." pubmed.ncbi.nlm.nih.gov/40808249/ 2226
Christopher Chabris @cfchabris.bsky.social · 05/08/2025"The Creativity Choice," a new book by @z-i-pringle.bsky.social, should be a great read for anyone interested in putting creative impulses and ideas into practice! www.hachettebookgroup.com/titles/dr-zo...hachettebookgroup.comThe Creativity ChoiceA “groundbreaking” (Marc Brackett) correction to the myth that creativity is a trait that you’re born with—instead, a Yale scientist proves, creativi... 150
Christopher Chabris @cfchabris.bsky.social · 27/05/2025I'm very happy that Pedram Heydari, @michellemeyer.bsky.social, and I have published our study on the internal inconsistencies in the choices that laypeople and medical clinicians make about rationing scarce treatments (such as ventilators and drugs during the Covid pandemic).dx.plos.orgMedical rationing choices of laypeople and clinicians are often illogical and inconsistent with their own stated preferencesThe sudden onset, rapid spread, and later surges of the Covid-19 pandemic resulted in shortages of ventilators, pharmaceuticals, and other critical resources, leaving individual clinicians to make rat... 153
Christopher Chabris @cfchabris.bsky.social · 14/05/2025At Geisinger we have created a new team to conduct and publish rigorous evaluations of important health system initiatives, programs, and interventions. I'm one of the faculty co-directors of this group and I'm happy to say we have two new positions open! (1/2) 173
Christopher Chabris @cfchabris.bsky.social · 11/05/2025Clay Shirky on the impact of generative AI on learning: "As with calculators, there will be many tasks where automation is more important than user comprehension, but for student work, a tool that improves the output but degrades the experience is a bad tradeoff." www.chronicle.com/article/is-a...chronicle.com 0103
Reposted by Christopher ChabrisZorana Ivcevic Pringle @z-i-pringle.bsky.social · 07/05/2025Today is the day! The Creativity Choice is out! Starting to see pictures in the wild. Some book bites in my latest newsletter. That I hope get people wanting to come for more: open.substack.com/pub/creativi...open.substack.comThe Creativity Choice is OUT!Today is publication day for a very long project; it translates the science of what comes between an idea and the finished product, to help you get from there to here. 0104
Christopher Chabris @cfchabris.bsky.social · 06/05/2025If you want to work with me and an amazing team of behavioral scientists and other colleagues on improving health decisions, please consider joining our group at Geisinger as a staff scientist! 033
Christopher Chabris @cfchabris.bsky.social · 03/05/2025I had a great time talking last week with fellow cognitive scientist and chess master @drcanchess.bsky.social, and you can watch the whole thing! (or listen on Can's "The Chess Cognition Podcast" on your favorite podcast platform) 1103
Christopher Chabris @cfchabris.bsky.social · 15/03/2025A lot to reflect on in this must-read essay by Jason Zweig about the surprising (or not surprising) death of Daniel Kahneman.wsj.comEssay | The Last Decision by the World’s Leading Thinker on DecisionsShortly before Daniel Kahneman died last March, he emailed friends a message: He was choosing to end his own life in Switzerland. Some are still struggling with his choice. 065
Christopher Chabris @cfchabris.bsky.social · 16/02/2025An accurate description and perceptive lament of just one way needless academic paperwork keeps on piling up. www.chronicle.com/article/were...chronicle.comOpinion | We’re Demanding Way Too Many Documents From Job CandidatesThe humanities job market is broken, but there’s one thing we can easily fix. 040
Christopher Chabris @cfchabris.bsky.social · 16/02/2025Rooting out scientific fraud and deception is one of the most important things scientists can do. Finally, an authoritative guide! 020
Christopher Chabris @cfchabris.bsky.social · 09/02/2025A fun 2020 paper by @itaiyanai.bsky.social and Martin Lercher found that many students who were given a data set to analyze, along with specific questions to answer about it, failed to notice that a scatterplot of the points formed an image of a gorilla. But can AI models spot the gorilla? ... 122
Christopher Chabris @cfchabris.bsky.social · 20/01/2025I've been waiting for the answer to this question for a long time, but if I could have just one wish, it would be for people to stop mixing their large mammal business metaphors by saying "that's the invisible gorilla in the room." www.youtube.com/watch?v=aGEH...youtube.comThe Elephant in the Room vs The Invisible Gorilla. Who wins?YouTube video by BVOLVR (Become. Evolve. Excel) 010
Reposted by Christopher Chabrisjonathanlwai.bsky.social @jonathanlwai.bsky.social · 09/12/2024The Harvard Effect: www.forbes.com/sites/jonath... @cfchabris.bsky.socialforbes.comThe Harvard EffectA new study of over 26,000 influential U.S. people shows that a disproportionate number of them attended Harvard University. 042
Christopher Chabris @cfchabris.bsky.social · 06/12/2024Pleased to see that the Yale Peabody Museum has included the invisible gorilla (by @profsimons.bsky.social and me) in their new exhibit on perception, attention, and memory! Other museums that have exhibited our work: American Museum of Natural History, Exploratorium, Wellcome Collection, & MONA.yaledailynews.comPeabody Museum opens new neuroscience exhibitThe exhibition, entitled “Mind/Matter: The Neuroscience of Perception, Attention and Memory,” explores the history of neuroscience and the wonders of human cognition. 0193
Reposted by Christopher ChabrisFelipe A. Araujo @felipeaaraujo.bsky.social · 23/11/2024I'm thrilled that our paper on base-rate neglect (BRN) and on-the-job experience (w/ @cfchabris.bsky.social and @michellemeyer.bsky.social) was just accepted at Management Science! TLDR: on-the-job experience with base-rate type problems mitigates, but does not eliminate, base-rate neglect. 1/7 5347
Christopher Chabris @cfchabris.bsky.social · 15/07/2024Our department at the Geisinger Research Institute is adding a group of great new faculty members! 050
Christopher Chabris @cfchabris.bsky.social · 04/07/2024If you haven't yet bought my amazing book w/ @profsimons.bsky.social on how fraud, scams, and cheating really work, now you have no excuse. Amazon has lowered the Kindle price to $3.99, but who knows how long that will last, so don't wait to get a copy! www.amazon.com/Nobodys-Fool...amazon.comAmazon.com: Nobody's Fool: Why We Get Taken In and What We Can Do about It eBook : Simons, Daniel, Chabris, Christopher: Kindle StoreAmazon.com: Nobody's Fool: Why We Get Taken In and What We Can Do about It eBook : Simons, Daniel, Chabris, Christopher: Kindle Store 031
Christopher Chabris @cfchabris.bsky.social · 22/04/2024How well do people know their own social abilities? Patrick Heck, Matt Brown, and I ran two studies (total N=927) that revealed a surprising pattern: a negative relationship between people's self-rated skill and actual performance for social ability. swisspsychologyopen.com/articles/10.... 153
Reposted by Christopher Chabristal yarkoni @talyarkoni.com · 30/03/2024on Daniel Kahneman: what a profound loss. he was an intellectual giant, and as close to the platonic ideal of a scientist as one can hope to see in this life. i’ll add to the enormous pile of anecdotes people have shared with 3 of my own that hopefully convey what an enormous influence he had. 26827
Christopher Chabris @cfchabris.bsky.social · 01/01/2024Happy 2024! If you have resolved this year to get conned less often (or not at all), to not be taken in by misinformation and deceptive marketing, and to evade fraud and scams as much as possible, you should read my book with @profsimons.bsky.social: NOBODY'S FOOL dansimons.com/NobodysFool.... 062
Christopher Chabris @cfchabris.bsky.social · 20/11/2023So honored to be both generatable by generative AI, and in the company of these other generatable classics! — Christopher Chabris, co-author of THE INNVISIIIBLEEGOR ILLLA 080
Christopher Chabris @cfchabris.bsky.social · 13/11/2023At Geisinger we have several open positions for empirical researchers at the intersection of behavioral science & health: • Predoctoral fellow (starting ASAP) • Postdoctoral fellow (starting ASAP) • Faculty, open rank (flexible) Ads & application info: tinyurl.com/BehSciJobs 063
Reposted by Christopher ChabrisMichelle Meyer @michellemeyer.bsky.social · 07/07/2023Congrats to @profsimons.bsky.social & @cfchabris.bsky.social for making the cover of the WSJ Review section with an essay adaptation of their new book, Nobody’s Fool, out Tuesday www.wsj.com/articles/why-we-get-sca…wsj.comEssay | Why We Get Scammed and What to Do About ItTo avoid being fooled, we need to become aware of the mental habits and shortcuts that make us easy to deceive. 073
Christopher Chabris @cfchabris.bsky.social · 12/07/2023NOBODY'S FOOL, my second book co-authored with @profsimons, was published today by @BasicBooks! It's about how deception works—the patterns inherent in successful frauds and scams, and the cognitive science of how we respond to them. Much more info here: dansimons.com/NobodysFool.html 050