David Epstein @davidnotdave.bsky.social · 01/08/2026NIH does not have an institutional subscription to Nature Mental Health or Nature Reviews Psychology. They are offensively expensive publications, but that doesn’t stop NIH from subscribing to Nature Nanotechnology or Nature Plants or… 010
David Epstein @davidnotdave.bsky.social · 31/07/2026My red text is on the right-hand side of the screencap. If you understand factor analysis and/or the circumplex model of affect, please explain it to me as if I were a toddler. And please don't be mean. 000
David Epstein @davidnotdave.bsky.social · 16/07/2026Here's a study protocol (no results, just protocol), newly published in a peer-reviewed journal. Looking at the dates, I don't know why. If you want your protocol publicly available, just put it on a preprint server. 100
David Epstein @davidnotdave.bsky.social · 15/05/2026The main thing I do for fun is cross-mispronounce "Anthropic" and "biopic." 010
David Epstein @davidnotdave.bsky.social · 07/05/2026Not sure how this figures into the ol' h-index. 2304
David Epstein @davidnotdave.bsky.social · 28/03/2026Made my own sign for No Kings. No use of generative AI here. I did it the way the Amish would do it: Photoshop. 020
David Epstein @davidnotdave.bsky.social · 28/03/2026The brain-disease model of addiction (BDMA) isn’t a model at all. As best I can tell, the BDMA is “addiction is a brain disease.” That’s best described as a slogan or a credo. It makes no falsifiable predictions. (1/2) 110
David Epstein @davidnotdave.bsky.social · 13/11/2025He's right. 𝘛𝘩𝘦𝘳𝘦 𝘈𝘳𝘦 𝘔𝘰𝘯𝘴𝘵𝘦𝘳𝘴 (2013) deserves FAR more good attention. It has all the things that make zombie movies potentially great, without the thing that makes them bad (they inevitably try to have fun with gun violence; this one doesn't, at least not yet, with 30 minutes to go). 011
Reposted by David EpsteinSchooley @schooley.bsky.social · 19/10/2025Republican rhetoric all week was clearly aiming to either depress turnout or inspire visible maga pushback. Neither happened and the press doesn’t seem particularly interested in exploring the implications of that. 202547503
David Epstein @davidnotdave.bsky.social · 18/10/2025Signs made for tomorrow. Because every season is spooky season! 032
David Epstein @davidnotdave.bsky.social · 18/09/2025Most papers presenting psychological questionnaires don't specify whether respondents should see the title of the questionnaire. And papers rarely say whether respondents did see the titles. Everybody who uses questionnaires: how do you handle titles when the questionnaire gives no guidance? 121
David Epstein @davidnotdave.bsky.social · 07/08/2025I’m proud of the way this paper turned out. We said: --Stop revictimizing people. Don’t say, “You were sexually abused, so you’re more prone to iatrogenic addiction, so we won't prescribe opioids for your pain.” --Monitor whole communities. link.springer.com/article/10.1007/s11469-025-01527-w 1113
David Epstein @davidnotdave.bsky.social · 08/07/2025When I see IRT used on psychological/psychiatric inventories, I question "difficulty." Low correct-response rates reflect difficulty if items measure knowledge or skill. But symptom/trait/state endorsement? Low "yes" rates may mean many things--not a construct called "difficulty." Change my mind. 020
David Epstein @davidnotdave.bsky.social · 28/06/2025Unsuccessful trial, good preprint. I fervently hope the final sentence makes it through peer review. 050
David Epstein @davidnotdave.bsky.social · 23/05/2025I've been telling people how the use of full labeling on an ordinal response scale can clarify what you get from a survey/EMA item. I didn't mean this. 140
David Epstein @davidnotdave.bsky.social · 02/05/2025New weekend of Tesla Takedown protests, new two-sided sign. (I'm reading 𝘍𝘶𝘯𝘯𝘺 𝘉𝘦𝘤𝘢𝘶𝘴𝘦 𝘐𝘵'𝘴 𝘛𝘳𝘶𝘦, Christine Wenc's excellent book about the history of The Onion.) 041
David Epstein @davidnotdave.bsky.social · 26/04/2025New sign made for tomorrow's Tesla Takedown. As a scientist, I've had it drummed into me--you're always supposed to show data. 050
David Epstein @davidnotdave.bsky.social · 11/04/2025Barnum/Forer effect by proxy: That's when researchers think a published scale measures their construct of interest because the scale has exactly the right title (plus the usual reliability metrics and validity claims). The items on the scale are weird and repetitious, but only respondents see it. 100
David Epstein @davidnotdave.bsky.social · 05/04/2025My two-sided sign for today's "Hands Off" protest outside the Social Security Administration building in Catonsville, MD. The Baltimore Banner put the crowd at "over 300," but I think it was 𝘰𝘷𝘦𝘳 over that. And Catonsville is but a suburb. 1142
David Epstein @davidnotdave.bsky.social · 03/04/2025There’s more to it, but perhaps one piece of what we’re seeing in national politics is the outcome of a tech/business culture in which affirmative meanings started inhering in word “disrupt.” I was raised to have that word default to the pejorative. 031
David Epstein @davidnotdave.bsky.social · 01/04/2025Going cold, turkey. I saw this paper on April 1, but it was not published on April 1. 000
David Epstein @davidnotdave.bsky.social · 30/03/2025This title made me happy out of all proportion to the stimulus. I want to thank it. Right now it's only a preprint. Together, psychological-science Bluesky, we can commit to editor/reviewer stances that might bring it all the way to publication. And that would be kinda great. 1131
David Epstein @davidnotdave.bsky.social · 15/03/2025On both sides of the road in Owings Mills, MD, there were ~200 of us making it less socially comfortable to do business with Tesla. It matters. Purchases are elections that happen every day. Nearly nonstop response of thumbs-up honking from drivers-by, including 18-wheelers. Salt of the earth. 1130
Reposted by David EpsteinMiri Forbes @miriforbes.bsky.social · 08/01/2025-‘Internalizing’ is much narrower than the current model suggests (but a broader dimension like ‘emotional dysfunction’ could be useful to group the fear, distress, eating pathology, sexual problems, and somatoform domains) -Harmful substance use should be distinct from core externalizing 2/2 3151
David Epstein @davidnotdave.bsky.social · 10/12/2024Article in JAMA Psychiatry: "Are Psychiatric Nosologies Limiting the Success of Clinical Prediction Models?" Authors say yes. Eh. Counterpoint 1 of 2: Automated detection/prediction is usually also inaccurate for discrete, verifiable behavioral events, such as instances of drug use. (1/2) 120
David Epstein @davidnotdave.bsky.social · 06/12/2024I had an invitation lined up for my virtual attendance to #ACNP2024, but we left it too long, and ACNP has shut the door. Attendees, please post prolifically about the goings-on. I ask with puppydog eyes. If puppydog eyes could talk. 020
David Epstein @davidnotdave.bsky.social · 23/11/2024People who study norm-based interventions for behavior change: Is there any work that speaks, even indirectly, to the social effects of "We believe..." yard signs and other such displays of decency? 160
David Epstein @davidnotdave.bsky.social · 16/11/2024I'm here mostly for the next incarnation of what was Science Twitter, but sometimes I'll also post things such as this. By "this," I mean a life-giving, strength-bolstering playlist for our times, from my friend Meredith. 171
David Epstein @davidnotdave.bsky.social · 15/11/2024I'd like to see more of this in science: say what decisions you made, in what order, and why. Btw, it's not about preregistration. Dishonest people can "preregister" analyses they've already done. Honest people can be honest without preregistering. It's the honesty and clarity I applaud. 4304
David Epstein @davidnotdave.bsky.social · 11/11/2024Apparently I've tweeted 1,295 times. Whereas, here, I've made only 30 noises. So I have a self-conscious feeling like I'm putting prints into flat snow. 020
David Epstein @davidnotdave.bsky.social · 31/10/2024I think this is the first year we've ever created a pumpkin situation here. Jack o'liberty. Treats were issued a moment ago to a smol RBG. 020
David Epstein @davidnotdave.bsky.social · 14/06/2024Our new #kratom paper explains frankly why we're putting these data into press now. Sometimes you publish because you don't want to soft-pedal or file-drawer counterpoints to your other work. www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2024.1412397/ 041
David Epstein @davidnotdave.bsky.social · 12/06/2024Regression to the mean has always baffled me. Unless it works like this. People with the most extreme values at Time X will usually have less-extreme values at Time X+1, but others, initially less extreme, will drift out and replace them. So it's more like "shuffling at the extremes." Yes, no? 020
David Epstein @davidnotdave.bsky.social · 01/05/2024Does anyone know of a blinded study in which a liquid medication (probably somewhat bitter) was matched to liquid placebo with any reported detail about how the respective flavors were checked? Every paper I've found has seemed to say "trust us, they matched." 231
David Epstein @davidnotdave.bsky.social · 18/04/2024"Did you come up with a snappy title for our paper?" "I sure did!" "Great! And you checked to make sure it hasn't been used before?" "Oh, this is guaranteed fresh." 020
David Epstein @davidnotdave.bsky.social · 05/04/2024"Convenience sample" is such a sneering term for something that's often excruciatingly effortful. I hear it in Dana Carvey's Church Lady voice. 010
David Epstein @davidnotdave.bsky.social · 16/03/2024This thing is making a reappearance on Twitter, and no one appears to know that the answer is zero. Good luck claiming your earned-income tax credit on those gains, cowboy. 020
David Epstein @davidnotdave.bsky.social · 08/03/2024You could say that scientists have a compulsion to fold things, but that would be unfair. Scientists have a compulsion to fold things a specified number of times. (Screenshot: quasirandom selection from papers I've recently read.) 110
David Epstein @davidnotdave.bsky.social · 19/02/2024"Orange you glad we didn't maintain a data column labeled 'methamphetamine'?" 020
David Epstein @davidnotdave.bsky.social · 15/02/2024I kinda startled myself with this little experiment in power calculations. You can have zero ability to find the effect you're looking for, but more than zero "power," all of which reflects your likelihood of overestimating the effect. 251
David Epstein @davidnotdave.bsky.social · 05/12/2023I really liked the discussions of equity, privacy, and consent in this big-data study group at #ACNP2023. 020
David Epstein @davidnotdave.bsky.social · 23/10/2023I mostly love Mike Flanagan's movies and series, but his 𝘏𝘰𝘶𝘴𝘦 𝘰𝘧 𝘜𝘴𝘩𝘦𝘳 adaptation asserts that opioid analgesia is an essentially illegitimate aim ("there's no such thing as a painkiller"). Ugh. 010
David Epstein @davidnotdave.bsky.social · 21/10/2023This is why I'm glad there's a section for confidential comments to the editor. 020
David Epstein @davidnotdave.bsky.social · 05/10/2023My first-ever Bluesky post is an ask: Do any of you have procedures/advice for giving/coding a TLFB (timeline follow-back) for drugs that aren't alcohol? Especially opioids in the age of fentanyl, with which it's probably harder than ever for people to know the identity or amount of what they got? 073