Reposted by Andres MontealegreData Colada @datacolada.bsky.social · 02/09/2026Colada[139] Artificial Deadlines Part 2 Evidence of fraud in the 25 year old gradesheet behind the key finding in an influential paper on deadlines and procrastination. datacolada.org/139 816857
Reposted by Andres MontealegreData Colada @datacolada.bsky.social · 31/08/2026An influential paper by Ariely & Wertenbroch (2002) reported two studies with tampered data. Post 1 of 2. datacolada.org/138datacolada.org[138] Artificial Deadlines (Part 1): Evidence of Fraud in an Influential Study About ProcrastinationA new paper in Psychological Science (.htm) reports a failure to replicate Study 2 of Ariely and Wertenbroch’s influential article entitled, “Procrastination, Deadlines, and Performance: Self-Contr… 723799
Reposted by Andres MontealegreDr. Frisky Whisky McThicky, Ball Knower @professorpash.blacksky.app · 02/06/2026🕊️ R.I.P. Dexter Wansel, legendary Philadelphia keyboardist, producer, and architect of the Philly soul sound. His work on “Love TKO,” “Nights Over Egypt,” and “If Only You Knew,” plus the groundbreaking “Theme from The Planets,” shaped generations of soul, funk, jazz fusion, and hip-hop. He was 75. 013075
Reposted by Andres MontealegreDaniel Lakens @lakens.bsky.social · 25/05/2026New blog post: Evaluating Dr. Cuddy’s Claim that the Debunking of Power Posing is a Myth. daniellakens.blogspot.com/2026/05/eval... On an AI generated description of a non-existent study, incorrectly citing findings from studies, and the importance of scientific criticism.daniellakens.blogspot.comEvaluating Dr. Cuddy’s Claim that the Debunking of Power Posing is a MythIn this blog post I will analyse the arguments that Dr. Amy Cuddy provided in a blog post “The "Power Posing Was Debunked" Myth: What the Re... 1517870
Andres Montealegre @andresm.bsky.social · 10/05/2026This seems like an interesting attempt to see how far LLMs can help with social science research. But I am not sure how much progress will come from producing more papers. What we need -I think- is figuring out how to use LLMs to produce better papers. 1141
Reposted by Andres MontealegreJulia M. Rohrer @dingdingpeng.the100.ci · 22/04/2026Good news everyone 🥳 Our (w @vincentab.bsky.social) primer on models as prediction machines (with the marginaleffects package) is finally officially published!> journals.sagepub.com/doi/10.1177/...journals.sagepub.comModels as Prediction Machines: How to Convert Confusing Coefficients Into Clear Quantities - Julia M. Rohrer, Vincent Arel-Bundock, 2026Psychological researchers usually make sense of regression models by interpreting coefficient estimates directly. This works well enough for simple linear model... 11366131
Reposted by Andres MontealegreThe Onion @theonion.com · 17/04/2026“Don’t tell me you’ve been using particle board in here,” said the 55-year-old woodworker theonion.comNick Offerman Visits Criterion Closet To Rebuild ShelvesNEW YORK—In an eight-hour-long video posted Tuesday to the Criterion Collection’s YouTube channel, actor Nick Offerman can be seen paying a visit to the Criterion Closet to rebuild the film library’s ... 302258277
Reposted by Andres MontealegreRuss Poldrack @russpoldrack.org · 02/04/2026These are essential questions to be asking right now. Ignoring the power of these models (which are only getting smarter by the month) is a recipe for professional obsolescence for one's self and their students. 1219
Reposted by Andres MontealegreSuyog Chandramouli @suyoghc.bsky.social · 21/03/2026Excited to share that @russpoldrack.org will be speaking at @princeton.edu this Tuesday, March 24! Talk: "The Promise and Perils of AI-Assisted Coding in Science" 12:00 PM ET Workshop: "Testing and Validating Code Developed Using AI" 11:00 AM ET The Zoom is open to all (see flyer for details)! 1124
Reposted by Andres MontealegreJoe Simmons @joesimmons.bsky.social · 19/03/2026New post on Data Colada. I spent a very long time trying to figure out a figure in a methods paper that is not in my area of expertise. It shows extremely *negative* R-squared values from replications of a true effect. The question on my mind was: WHAT?? I learned some stuff. datacolada.org/134datacolada.org[134] Figuring Out Figure 1 - Data ColadaA few years ago our Journal Club discussed an interesting methods paper entitled, “Putting Psychology to the Test: Rethinking Model Evaluation Through Benchmarking and Prediction” (.htm). This post describes my attempt to understand what’s happening in Figure 1 of that paper, which shows that extremely simple experiments can generate extremely negative R2s. I learned a... 1185
Reposted by Andres MontealegreDarren Dahly @statsepi.bsky.social · 18/03/2026Every day is a good day for sharing one of the most useful papers about research data ever written. PLEASE get your people to understand and follow this advice. www.tandfonline.com/doi/full/10.... 311050400
Reposted by Andres MontealegrePascal Mamassian @mamassian.bsky.social · 12/03/2026A new Department of Cognitive Science is being created at Bocconi University in Milan, Italy. Here is the call for a cluster hire (for around 10 faculty) in all areas of cognitive science, at both junior and senior levels: www.unibocconi.it/en/faculty-a... Deadline: May 4th, 2026unibocconi.itOpen Rank Faculty Cluster Hire Search for the New Department of Cognitive Science at Bocconi - Bocconi University 3150119
Reposted by Andres MontealegreData Colada @datacolada.bsky.social · 02/03/2026Answering the most popular question in a PhD methods course datacolada.org/133datacolada.org[133] Heterofriendly: The Intuition for Why You Always Need Robust Standard Errors - Data ColadaWhen I taught my first PhD-level methods course, I invited students to submit questions about any topic in statistics or methodology. Six out of 10 students asked about the same topic: robust & cluste... 12611
Reposted by Andres MontealegreNPR @npr.org · 21/02/2026The South Bronx bandleader took the Latin genre to new heights while recording for Fania Records. n.pr/4kLTCKVn.prWillie Colón, salsa pioneer, has died at 75The South Bronx bandleader took the Latin genre to new heights while recording for Fania Records. 7336111
Reposted by Andres MontealegreData Colada @datacolada.bsky.social · 24/09/2025Would p-curve work if you dropped a piano on it? datacolada.org/129 1173
Reposted by Andres MontealegreData Colada @datacolada.bsky.social · 23/06/2025Colada[128] The Best Audit Study and its interesting shortcoming datacolada.org/128 01810
Reposted by Andres MontealegreNick Huntington-Klein @nickchk.com · 06/06/2025The second edition of The Effect has been delayed a bit... because there were so many orders they had to switch to a bigger print run! Thank you everyone for your support, and check out the second edition here: www.routledge.com/The-Effect-A...routledge.comThe Effect: An Introduction to Research Design and CausalityThe Effect: An Introduction to Research Design and Causality, Second edition is an excellent teaching text about research design, specifically concerning research that uses observational data to make ... 48818
Reposted by Andres MontealegreData Colada @datacolada.bsky.social · 02/06/2025Don't assume, plot datacolada.org/126 13213
Andres Montealegre @andresm.bsky.social · 08/04/2025Does anybody know of a paper or blog discussing arguments of the form "we found our results despite this confound that works against our effect"? Essentially, how to think about confounds that go against the hypothesized or observed effect. 331
Reposted by Andres MontealegreIke Silver @ikesilver.bsky.social · 22/03/2025Really proud of this new work out @psychscience.bsky.social. Led by the amazing but bluesky-less Amanda Geiser and with @deborahsmall.bsky.social. We show that when comparing moral wrongs, people are (much) more willing to “scale up” than to “scale down” condemnation and punishment… 14318
Reposted by Andres MontealegreData Colada @datacolada.bsky.social · 14/03/2025Measurement error, Nobel Prize winning research, friendly disagreements, and more.... datacolada.org/124datacolada.org[124] "Complexity": 75% of participants missed comprehension questions in AER paper critiquing Prospect Theory - Data ColadaKahneman and Tversky’s (1979) “Prospect Theory” article is the most cited paper in the history of economics, and it won Kahneman the Nobel Prize in 2002. Among other things, it predicts that people ar... 11810
Reposted by Andres MontealegreEinstein Foundation Berlin @einsteinberlin.bsky.social · 14/03/2025🏆 Research integrity consultant and image forensics expert @elisabethbik.bsky.social has uncovered fraudulent data in over 7,600 scientific papers and exposed the practices of ‘paper mills’ that produce counterfeit scientific articles. She is honoured with the €200K Individual Award. Congrats! 16496117
Reposted by Andres MontealegreNPR @npr.org · 06/03/2025The vibraphonist, composer and jazz-funk pioneer helped inspire the neo-soul movement, and his best-known song was sampled over 100 times.npr.orgRoy Ayers, whose 'Everybody Loves The Sunshine' charmed generations, dies at 84The vibraphonist, composer and jazz-funk pioneer helped inspire the neo-soul movement, and his best-known song was sampled over 100 times. 572594647
Reposted by Andres MontealegreData Colada @datacolada.bsky.social · 05/03/2025Delving into a disagreement with prominent political scientists on a fundamental data-analysis question: what do you want to learn from a regression interaction? datacolada.org/123datacolada.org[123] Dear Political Scientists: The binning estimator violates ceteris paribus - Data ColadaThis post delves into a disagreement I have with three prominent political scientists, Jens Hainmueller, Jonathan Mummolo, and Yiqing Xu (HMX), on a fundamental methodological question: how to analyze... 1217
Reposted by Andres MontealegreM. Nolan Gray 🥑 @mnolangray.bsky.social · 12/02/2025Today in @worksinprogress.bsky.social, I reflect on Donald Shoup's legacy. Perhaps the most interesting question: how did the most unlikely professor kick off an international parking reform movement? substack.com/home/post/p-...substack.comThe prophet of parkingA eulogy for the great Donald Shoup 24213
Reposted by Andres MontealegreGeorge Wu @geowu.bsky.social · 07/02/2025A new working paper with Daniel Banki, @urisohn.bsky.social and Robert Walatka, just submitted to SSRN. The paper is comment on Ryan Oprea's recent AER paper. The paper is processing, but you, my friends, get early entry. papers.ssrn.com/sol3/papers.... 210532
Reposted by Andres MontealegreChengyao Sun @chengyaosun.bsky.social · 20/01/2025My ✨New Paper✨ (w/ Robyn LeBoeuf) is out in JEP: General! We find a robust discrepancy between people’s prediction and their own likelihood judgment. 1/n🧵 psycnet.apa.org/record/2025-...psycnet.apa.orgAPA PsycNet 3103
Reposted by Andres MontealegreData Colada @datacolada.bsky.social · 07/01/2025Did a police training improve officers' behavior during arrests? A forthcoming QJE paper with a flexible pre-registration and key p-values of p=.048 & p=.051 says yes. datacolada.org/122datacolada.org[122] Arresting Flexibility: A QJE field experiment on police behavior with about 40 outcome variables - Data ColadaA forthcoming paper in the Quarterly Journal of Economics (QJE), "A Cognitive View of Policing" (htm), reports results from a field experiment showing that teaching police officers to "consider differ... 14719
Reposted by Andres MontealegreSaloni @scientificdiscovery.dev · 06/12/2024Madrid tripled the length of its metro system in just 12 years, faster and cheaper than almost any other city in the world. Left: in 1994 Right: after 2007 Cost per mile: £64–91 million (around 7x cheaper than London's Jubilee & Northern line expansions & 14x cheaper than Toronto's Ontario line) 15463137
Reposted by Andres MontealegreGabriele Paolacci @gpaolacci.bsky.social · 06/12/2024I’m looking for responses to replications that attributed failure to stimuli becoming invalid with time (e.g., Shafir and Cheek 2024 JDM on choose/reject effects), or to stimulus selection more generally. Discussions also welcome (e.g., @olegurminsky.bsky.social and Dietvorst 2024 JCR). Pointers? 121
Reposted by Andres MontealegreUri Simonsohn @urisohn.bsky.social · 06/12/2024I'm compiling types of manipulations in psychology: 1) Vignette study 2) Autobiographical ("Remember a time you ...") 3) Confederate acts some way 4) Watch video inducing emotion 5) Behavioral instruction ("talk to a stranger") 6) Prime a construct 7) Framing outcomes To contribute, reply 17488
Reposted by Andres MontealegreData Colada @datacolada.bsky.social · 03/12/2024A popular tool in political science for dealing with nonlinearities in invalidated by... ...nonlinearities. datacolada.org/121datacolada.org[121] Dear Political Scientists: Don't Bin, GAM Instead - Data ColadaThere is a 2019 paper, in the journal Political Analysis (htm), with over 1000 Google cites, titled "How Much Should We Trust Estimates from Multiplicative Interaction Models? Simple Tools to Improve ... 57519
Reposted by Andres MontealegreIoannis Evangelidis @ievangelidis.bsky.social · 24/11/2024We (i.e., the marketing department at ESADE) are looking for PhD students. Please spread the word: 046
Reposted by Andres MontealegrePaul Goldsmith-Pinkham @paulgp.com · 25/11/2024Man I cannot endorse this abstract more 12355101
Andres Montealegre @andresm.bsky.social · 22/11/2024Previous research shows that people sometimes view moral questions as objectively true, while other times treating them as true only relative to different perspectives. In our new paper, we present evidence that social rewards may explain this apparent inconsistency... 1113
Reposted by Andres MontealegreVincent Arel-Bundock @vincentab.bsky.social · 12/11/2024My First R Package: Dec.5-6 I'm super excited to announce that I'll soon be teaching a short course on how to develop #RStats packages! A 📦can make your code more efficient, reproducible, and helpful to others. Please let me know if you have any questions. codehorizons.com/Seminars/my-... 19426
Reposted by Andres MontealegreUri Simonsohn @urisohn.bsky.social · 12/11/2024Academics using {renv}: please check out: groundhogr.com/renv #rstatsgroundhogr.comRENV: comparing groundhog with renv – Groundhog 11910
Andres Montealegre @andresm.bsky.social · 31/10/2024Request: Are there examples of replications or studies examining whether results change when tested with a larger or different sample of stimuli? 333
Reposted by Andres MontealegreUri Simonsohn @urisohn.bsky.social · 25/10/2024There is a famous article titled: "How to show 9 is bigger than 221"... It critiques between-subject comparisons. Not enough people know the result is artifactual. You only get it when using a 1-10 scale (!) So people say "well, 9 is 9 big". Change scale, no effect. 172
Reposted by Andres MontealegreUri Simonsohn @urisohn.bsky.social · 18/10/2024Is this definition as bad it seems to me? 481
Reposted by Andres MontealegreDan Goldstein @dggoldst.bsky.social · 15/10/2024Judgment and Decision Making (JDM) starter pack Happy to add you go.bsky.app/8nDKmwG 11812853
Reposted by Andres Montealegresimine vazire @simine.com · 11/01/2024Part 1 of a two-part series on Freakonomics: Why is there so much fraud in academia? Interviews with @briannosek.bsky.social Leif Nelson, @joesimmons.bsky.social, @urisohn.bsky.social, Max Bazerman, and me. Part 2 (about what journals are doing) coming next week freakonomics.com/podcast/why-...freakonomics.comWhy Is There So Much Fraud in Academia? - FreakonomicsWhy Is There So Much Fraud in Academia? - Freakonomics 56024
Reposted by Andres Montealegresimine vazire @simine.com · 01/12/2023I'm thrilled to announce the new Psych Science editor team! We'll start on Jan 1, 2024. Check us out: here: www.psychologicalscience.org/public… We're spread across 15 countries in 5 continents! 🌍🌎🌏 Here’s a thread to introduce the team!psychologicalscience.org 720383
Reposted by Andres MontealegreSteve Haroz @steveharoz.com · 30/11/2023The ACLU filed an incredible amicus brief in defense of @datacolada.bsky.social last week. storage.courtlistener.com/recap/gov.us... 25831
Reposted by Andres MontealegreDan McNeish @dmcneish.bsky.social · 28/11/2023Most papers comparing clustered data methods use biostat/econ language, so I tried to write one using psyc/ed language that covers the origin of the independence assumption, how each method handles ind. violations, and types of questions best-suited for each method psycnet.apa.org/record/2024-... 510240
Andres Montealegre @andresm.bsky.social · 13/11/2023In the real world, many effects are non-linear. This new paper by @urisohn.bsky.social offers an intuitive explanation of the challenges with standard methods of testing interactions, along with a revised toolbox. In addition to changing a few lines in my R code, this changes how I think about data. 160
Reposted by Andres MontealegreUri Simonsohn @urisohn.bsky.social · 07/11/2023The Many Co-Authors platform went live yesterday. One main goal is to help junior co-authors credibly signal who was involved in data collection in their studies. Added today: figures summarizing the data. manycoauthors.orgmanycoauthors.org Main | Many Co-Authors 13517
Reposted by Andres MontealegreSaloni @scientificdiscovery.dev · 27/10/2023A classic chart by Max Roser: The rise and fall in smoking and lung cancer mortality over the 20th century. 910126