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Dave Hardisty

@dhardisty.bsky.social
880 followers 412 following 36 posts

Associate Professor of Marketing and Behavioural Science at The University of British Columbia. davidhardisty.info

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Reposted by Dave Hardisty
sjdm-tweets @sjdm-tweets.bsky.social · 01/06/2026
The Society for Judgment and Decision Making Newsletter is ready for download www.decisionsciencenews.com?p=7240
decisionsciencenews.com
The Society for Judgment and Decision Making Newsletter is ready for download
SOCIETY FOR JUDGMENT AND DECISION MAKING NEWSLETTER The Society for Judgment and Decision Making is pleased to announce that the latest newsletter is ready for download: This issue contains SJDM Fe…
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Reposted by Dave Hardisty
Philip N Cohen @philipncohen.com · 14/05/2026
Two new facts stand out: 1. 85% of hallucinated citations in preprints are also in the subsequent journal version (thanks, peer review!) 2. Fake cites more likely to use the names of (male) scholars who are already highly cited, creating a fake-citation Matthew effect. arxiv.org/abs/2605.07723
arxiv.org
LLM hallucinations in the wild: Large-scale evidence from non-existent citations
Large language models (LLMs) are known to generate plausible but false information across a wide range of contexts, yet the real-world magnitude and consequences of this hallucination problem remain p...
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Dave Hardisty @dhardisty.bsky.social · 21/04/2026
Most papers on sustainable behaviour change implicitly take the perspective of how large businesses or governments can influence individuals. We need more research on how smaller actors can influence larger ones, and influence each other, in impactful and feasible ways: doi.org/10.1016/j.jr...
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Oleg Urminsky @olegurminsky.bsky.social · 07/03/2026
When you collect data online, are the results from humans or AI? In a project led by Booth PhD student Grace Zhang, we estimate the prevalence of AI agents on commonly used survey platforms: osf.io/preprints/ps... 🧵
osf.io
OSF
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David Barner @drbarner.bsky.social · 19/02/2026
Bots have made their way to Prolific experiments. Our lab has stopped online testing of adults entirely now for this reason - we want to know if what we study is real. Probably data collected 2-3 years ago are ok, but moving forward we just can't know. www.pnas.org/doi/10.1073/...
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Jessica Hullman @jessicahullman.bsky.social · 27/01/2026
"Machine learning research is not serious research & therefore hallucinated references are not necessarily a big deal, agrees prestigious group of ML researchers" I ❤️ when the titles write themselves But seriously, I don't think there's much to debate statmodeling.stat.columbia.edu/2026/01/26/m...
statmodeling.stat.columbia.edu
Machine learning research is not serious research and therefore hallucinated references are not necessarily a big deal, agrees a prestigious group of machine learning researchers | Statistical Modeli...
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Dave Hardisty @dhardisty.bsky.social · 18/12/2025
Oh Canada!
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Thomas Kesteman🦠🧫🔬🌏 @tomk.eurosky.social · 24/11/2025
The results of the RCT didn't support our hypothesis ➡️ The RCT "failed".🤦‍♂️ This is not how science works! #ResearchIntegrity 👍Kudos to Charlotte Strøm for the review www.linkedin.com/pulse/review...
linkedin.com
Review of the preprint that reports on the DTP-trial (NCT00244673)
Nonspecific Vaccine Effects Journal Club no. 23 The preprinted publication (1) which is the focus of this issue of the Nonspecific Vaccine Effects Journal Club (NSEvacc) JC is reporting the results fr...
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Mike Frank @mcxfrank.bsky.social · 01/07/2025
Experimentology is out today!!! A group of us wrote a free online textbook for experimental methods, available at experimentology.io - the idea was to integrate open science into all aspects of the experimental workflow from planning to design, analysis, and writing.
Experimentology cover: title and curves for distributions.
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Dave Hardisty @dhardisty.bsky.social · 23/06/2025
The poll numbers that matter: www.vancouverisawesome.com/local-news/p... @carlbergstrom.com
vancouverisawesome.com
Poll: Vancouverites are pro-crow
Crows are mostly well-liked in Vancouver
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Dave Hardisty @dhardisty.bsky.social · 30/05/2025
Seems the White House is using gen AI to write their scientific reports, leading to the hallucinations and mistakes you'd expect. Laughing/crying right now. www.nytimes.com/2025/05/29/w...
nytimes.com
White House Health Report Included Fake Citations
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Reposted by Dave Hardisty
Science Magazine @science.org · 09/05/2025
Exclusive: National Science Foundation staff were told today that the agency’s 37 divisions—across all eight directorates—are being abolished and the number of programs within those divisions will be drastically reduced.
scim.ag
Exclusive: NSF faces radical shake-up as officials abolish its 37 divisions
Changes seen as a response to presidential directives on what research to fund
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Jay Van Bavel, PhD @jayvanbavel.bsky.social · 07/04/2025
Climate Terminology Does Not Matter Across tens of thousands of participants in two large-scale experiments, we found that labeling climate change in different ways had no effect on their stated willingness to act. jayvanbavellab.substack.com/p/climate-te... via @dgoldwert.bsky.social
jayvanbavellab.substack.com
Climate Terminology Does Not Matter
Our new paper finds that swapping out one climate term for another does not meaningfully change people’s stated commitment to fight climate change
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Dave Hardisty @dhardisty.bsky.social · 25/02/2025
Chegg, notorious resource for student cheating, is mad that Google is copying its answers.
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Dave Hardisty @dhardisty.bsky.social · 30/01/2025
Are you running AB testing studies on Facebook or Google? Or reviewing papers using them? Check out our open access paper, On the Persistent Mischaracterization of Google and Facebook A/B Tests: How to Conduct and Report Online Platform Studies at doi.org/10.1016/j.ij... @boegershausen.bsky.social
doi.org
Redirecting
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Brent Toderian @brenttoderian.bsky.social · 14/01/2025
IMPORTANT: If you live in the United States or Canada, you’ve probably heard Trump‘s constant claim that the United States is “subsidizing” Canada. It’s wrong of course, but here’s the best explanation I’ve seen about how & why it’s wrong. PLEASE WATCH & SHARE IT A LOT. Kudos to Andrew Chang & CBC.
youtu.be
Is Trump right about the U.S. 'subsidizing' Canada? | About That
YouTube video by CBC News
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Seth Abramson @sethabramson.bsky.social · 04/12/2024
Underreported: Elon just picked the head of NASA—a massive conflict-of-interest that will damage a government entity that he partners with, depends on, and in some cases competes with. The nominated NASA director is a high-school dropout billionaire who is pals with Musk. He has no business at NASA.
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Dave Hardisty @dhardisty.bsky.social · 01/12/2024
JDM pub: Intertemporal choice questions are usually like "Receive $10 now, or $15 next month?" Yet real-life decisions usually involve a mix of negatives and positives. Do mixed-valence questions better predict real-life behaviours? No! go.shr.lc/3OG36rz @yeli.bsky.social @sjdm-tweets.bsky.social
go.shr.lc
Assessing patience and predictivity validity for mixed sign intertemporal choices | Judgment and Decision Making | Cambridge Core
Assessing patience and predictivity validity for mixed sign intertemporal choices - Volume 19
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David Ho @davidho.bsky.social · 29/11/2024
Black Friday Deal Alert! Enjoy our current atmospheric CO₂ because we'll never see it this low again!
A graph depicting the global monthly mean carbon dioxide (CO2) levels from 1980 to 2024, showing a steady increase in CO2 mole fraction measured in parts per million (ppm), with data points represented by red dots and a trend line.
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Jamie Cummins @jamiecummins.bsky.social · 23/07/2024
Introducing RegCheck: a tool which uses Large Language Models to automatically compare preregistered protocols with their corresponding published papers and highlights deviations. @malte.the100.ci @ianhussey.bsky.social @ruben.the100.ci @bjoernhommel.bsky.social regcheck.app
regcheck.app
RegCheck.app
RegCheck is an AI tool to compare preregistrations with papers instantly.
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Stephanie M. Lee @stephaniemlee.bsky.social · 19/11/2024
the fallout from the Francesca Gino research misconduct scandal isn't over. @engber.bsky.social writes about how an effort by some of her colleagues to self-audit their work with her ended up raising even more questions — for them personally and their whole field www.theatlantic.com/magazine/arc...
theatlantic.com
The Business-School Scandal That Just Keeps Getting Bigger
The rot runs deeper than almost anyone has guessed.
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koenfucius @koenfucius.bsky.social · 17/11/2024
The superendowment effect—research by Winegar and Sunstein finds users would demand $80 to share personal data, but pay only $5 to keep them private. This raises questions over the reliability of WTP/WTA to gauge the welfare significance of giving up or maintaining privacy: buff.ly/3Oa5jvr
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Dave Hardisty @dhardisty.bsky.social · 16/11/2024
Prof Kai Chan and I are recruiting a PhD student to start at UBC starting in Fall 2025, to work on Green Death Care and Relationships with Nature. Looking for applicants with a background in survey and experimental design and analysis. Dec 15 application. deadline. Details: www.grad.ubc.ca/ad/58334
grad.ubc.ca
Green Deathcare and Relationships to Nature
We are seeking a PhD student to conduct surveys and behavioural experiments about green deathcare practices. This work is targeted at improving the uptake of sustainable and conservation-oriented deat...
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Reposted by Dave Hardisty
Andrew Porter @retropz.bsky.social · 17/10/2024
For any new @bsky.app users who are interested in #ResearchIntegrity matters, I've got a #StarterPack for you to help build your #Bluesky feed: go.bsky.app/5NJ9Z4N I like this method for finding new people to follow and interact with. And do let me know if you'd like to be added to the list
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Retraction Watch @retractionwatch.com · 05/11/2024
Hi there. We're Retraction Watch -- retractionwatch.com -- and we've joined Bluesky.
retractionwatch.com
Retraction Watch
Tracking retractions as a window into the scientific process
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Dave Hardisty @dhardisty.bsky.social · 01/11/2024
Thanks for the great Keynote, Jiaying!! You make me come alive! #BigDifferenceBC
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Dave Hardisty @dhardisty.bsky.social · 31/10/2024
BIG Difference BC starts tomorrow at 9am Pacific Time! * Free online conference on behavioural insights for good * Keynote on "Nudging Climate Action & Happiness" by Prof Jiaying Zhao * Program: bigdifferencebc.ca/program-2024 * Registration link: bit.ly/BDBC2024regi... Hope to see you there!
bigdifferencebc.ca
2024 Program — BIG Difference BC
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Reposted by Dave Hardisty
Andrew Mercer @awmercer.bsky.social · 19/10/2024
It’s insane that I got all the way through getting a PhD before I encountered equivalence tests. These should be part of every intro stats curriculum that covers NHST.
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Anna Reuter @anna-reuter.de · 01/10/2024
Something like this?
Repeat after me meme: Phoebe tries to make Joey say 'Finish our papers before starting new papers', but Joey ends up with 'Let's start talking about new papers'
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Remy Levin @remylevin.bsky.social · 25/09/2024
Another shoe just dropped in the ongoing Dan Ariely scandal: JMR, a top 4 marketing journal, has issued a formal “Expression of Concern” for Mazar, Amir, & Ariely (2008), the infamous Ten Commandments study 🧵
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Dan Goldstein @dggoldst.bsky.social · 19/09/2024
‪ # Mnemonic for remembering Type I and II Errors # Boy who cried wolf trick First, Type 1: Villagers react when there is no wolf present Second, type 2: Villagers do not react despite there being a wolf present The story wouldn't make sense in the reverse order, making 1 then 2 memorable
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Stephanie M. Lee @stephaniemlee.bsky.social · 12/09/2024
BREAKING: A judge has dismissed the defamation suit brought against Data Colada by Francesca Gino, the Harvard Business School professor whose studies were found to contain fraud. (Some of Gino's claims against Harvard will be allowed to proceed.) www.chronicle.com/article/she-...
chronicle.com
She Sued the Sleuths Who Found Fraud in Her Data. A Judge Just Ruled Against Her.
But the judge will allow part of Francesca Gino’s lawsuit against Harvard to proceed.
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Data Colada @datacolada.bsky.social · 02/09/2024
Hidden Confound in Pre-Registrations Critique datacolada.org/119 Post ends with link to submit suggestions for AsPredicted & OSF
datacolada.org
[119] A Hidden Confound in a Psych Methods Pre‑registrations Critique - Data Colada
A forthcoming paper in Psych Methods (.pdf) had a set of coders evaluate 300 pre-registrations in terms of how informative they were about several study attributes (e.g., hypotheses, analysis, DVs). T...
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Mark Rubin @markrubin.bsky.social · 03/04/2024
New article from me: “Inconsistent multiple testing corrections: The fallacy of using family-based error rates to make inferences about individual hypotheses” Open access: doi.org/10.1016/j.me... #Stats #Methodology
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tal yarkoni @talyarkoni.com · 30/03/2024
i read the post on Gelman’s blog about the Protzko et al. “high replicability” paper, and then i skimmed the published paper, and then i read the review i wrote for an older version of the paper when it was submitted to Nature back in 2020, and after that i was left with 2 questions:
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Daniel Lakens @lakens.bsky.social · 16/03/2024
I am getting tired of people who criticize frequentist statistics, but then equate frequentist statistics with null hypothesis significance testing. Often leads people to say silly things such as 'p-values only allow you to reject H0, not accept it' - completely ignoring equivalence testing.
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Carl T. Bergstrom @carlbergstrom.com · 15/03/2024
Another Elsevier paper with obvious AI-written text. “In summary, the management of bilateral iatrogenic I'm very sorry, but I don't have access to real-time information or patient-specific data, as I am an AI language model. “
Radiology Case Reports
Volume 19, Issue 6, June 2024, Pages 2106-2111
Case Report
Successful management of an Iatrogenic portal vein and hepatic artery injury in a 4-month-old female patient: A case report and literature reviewIn summary, the management of bilateral iatrogenic I'm very sorry, but I don't have access to real-time information or patient-specific data, as I am an AI language model. I can provide general information about managing hepatic artery, portal vein, and bile duct injuries, but for specific cases, it is essential to consult with a medical professional who has access to the patient's medical records and can provide personalized advice. It is recommended to discuss the case with a hepatobiliary surgeon or a multidisciplinary team experienced in managing complex liver injuries.
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Neil Lewis, Jr. @neillewisjr.bsky.social · 14/03/2024
"There’s also been a persistent sense of disbelief that Indigenous people could be responsible for this futuristic version of urban living...Canadians aren’t used to seeing Indigenous people occupy places that are socially, economically or geographically valuable, like Sen̓áḵw."
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Randall Munroe @xkcd.com · 27/02/2024
Goodhart’s Law xkcd.com/2899
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Brian Nosek @briannosek.bsky.social · 11/01/2024
Paper: "Selective and (mis)leading economics journals: Meta-research evidence" OA: onlinelibrary.wiley.com/doi/10.1111/...
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Dave Hardisty @dhardisty.bsky.social · 21/11/2023
Finally got up the courage to ask for a photo with one of the greats! He was as gracious and fun as you'd expect. For the record, he prefers "Richard" to "Dick" -- I checked!
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Dave Hardisty @dhardisty.bsky.social · 19/11/2023
If you haven't seen it already, check out this presentation on click farms and fraudulent survey data, from Leib Litman at Cloud Research: us02web.zoom.us/rec/share/Dx... They estimate ~30% of data is from click farms, and have some tools/suggestions for detection.
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Dave Hardisty @dhardisty.bsky.social · 18/10/2023
"b-hacking" revealed in the FTX trial yesterday. Could be a way to spot potential fraud in business! Look for numbers just over $1m or just over $1b. www.coindesk.com/policy/2023/...
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