David C. Vaidis

David C. Vaidis

@vaidis.bsky.social

Professor in Social Psychology at Université de Toulouse, France Interested in Psychological Science, Cognitive Dissonance, Meta-Science, Epistemology, History of Science, Societal Impact, Human Development...

129 followers82 following73 posts

Many thanks to SIPS for this paper award about Big Team Science! Congrats to the marvelous team! 🎉 #bigteamscience #psysci

🔗The paper is available here: buff.ly/TngrXVR, with supplementary materials (including recommendations and examples) at: buff.ly/kMzQ8zc 👏Congratulations to everyone who contributed to the project: David C. Vaidis @vaidis.bsky.social, Jacob F. Miranda @jacobmiranda.bsky.social, (1/5)

12 years separate these two pictures, and in the meantime we moved from Maître de Conférences (assistant professor) to Professor. The big difference? We lost the French style! ^^

How to solve GDPR compliance for Big Team Science? Easy: 🛢️ "Data were stored on a decommissioned North Sea platform (52°N, 3°E)" 🛢️ Eager to get the IRB response! Ready to share ownership of a decommissioned oil rig? 😄 #BigTeamScience #OpenScience

🧠 Job alert! Tenured Associate Professor in Neuroscience at Université de Toulouse, France (CLLE/CNRS) Cognition × Language × Neuroimaging 📅 Open Mar 3 → Deadline Apr 3 | Interviews May 🔗 odyssee.enseignementsup-recherche.gouv.fr #Neuroscience #AcademicJobs #CognitiveScience 🧵 More details:

🧠 Job alert! Tenured Associate Professor in Neuroscience at Université de Toulouse, France (CLLE/CNRS) Cognition × Language × Neuroimaging 📅 Open Mar 3 → Deadline Apr 3 | Interviews May 🔗 odyssee.enseignementsup-recherche.gouv.fr #Neuroscience #AcademicJobs #CognitiveScience 🧵 More details:

🧠 Research at the CLLE lab (UMR CNRS 5263): Neuroscience at the interface of cognition & language. Neuroimaging experience required. 🗓 Timeline: Opens Mar 3 | Closes Apr 3 | Feedback early May | Interviews by May 22 Information on the portal odyssee.enseignementsup-recherche.gouv.fr (early March)

🧠 Job alert! Tenured Associate Professor in Neuroscience at Université de Toulouse, France (CLLE/CNRS) Cognition × Language × Neuroimaging 📅 Open Mar 3 → Deadline Apr 3 | Interviews May 🔗 odyssee.enseignementsup-recherche.gouv.fr #Neuroscience #AcademicJobs #CognitiveScience 🧵 More details:

📚 Teaching (duty in front of students 192h/yr): Psychophysiology, Cognitive Neuroscience & Neuropsychology — undergrad Psychology + Master in Cognitive Science & Clinical Neuropsychology. French proficiency expected for teaching (at least in a close future).

📢 Post-doc position – Toulouse (France) 🇫🇷 A post-doctoral position (12 months) is open at CNRS in Toulouse to work with me on the relationship between signal detection theory, conspiracy beliefs, and perceptions of corruption... 🔗 emploi.cnrs.fr/Offres/CDD/U... Feel free to share!

emploi.cnrs.frPortail Emploi CNRS - Offre d'emploi - PhD contract on ANR COPYCAT : "Study of the relationship between conspiracist beliefs and perceptions of corruption" M/FAssurez-vous que votre profil candidat soit correctement renseigné avant de postuler

I'm not a big fan of rituals, but I truly wish us all a better world! Let's remember that people are not their governments. Several of the latter must be stopped now, while many of the former must be supported and empowered to change the game.

David C. Vaidis reposted

📢 Call for submissions for #SIPS2026!📢 The SIPS community will meet next year, and we look forward to seeing you at the conferences! Don't forget to send your submission for the conference before January 23 (for the in-person conference) or February 27 (for the online conference).

buff.lySIPS 2026 – June 8-10, 2026The submission portal for the conference is now open! We invite researchers to submit their contributions for both online and in-person SIPS 2026. We look forward to your participation!

What is the current position of @improvingpsych.org concerning the Washington meeting after the last Trump's administration proposal? Requiring 5 years of social media history, phone numbers, and email addresses is invasive and concerning for anyone who values privacy and freedom of thought.

reuters.comUS social media requirements for foreign visitors could have 'chilling effect' on travel, industry group saysA group representing the U.S. travel and tourism industry warned Monday that a proposal to require millions of foreign visitors to provide social media handles used over the past five years could have...

I didn't want to get into this discussion, but after seeing strong reactions to Kelly (2025), I think it's worth helping colleagues think more critically about what the paper actually shows—and doesn't show. Spoiler: not the bombshell some claim. #SocialPsychology #CognitiveDissonance

onlinelibrary.wiley.comDebunking “When Prophecy Fails”In 1954, Dorothy Martin predicted an apocalyptic flood and promised her followers rescue by flying saucers. When neither arrived, she recanted, her group dissolved, and efforts to proselytize ceased.....
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Bottom line: Yes, condemn the unethical methods. But don't dismiss cognitive dissonance theory based on one inconsistent secondary effect. We must be serious in engaging in Science.

So hard critic is okay to move forward but Science is much more. a/ Read the papers (not just abstracts) b/ Put them in perspective with the full literature Critique the ethics AND maintain scientific rigor. #replication #cognitivedissonance #scienticrigor

I didn't want to get into this discussion, but after seeing strong reactions to Kelly (2025), I think it's worth helping colleagues think more critically about what the paper actually shows—and doesn't show. Spoiler: not the bombshell some claim. #SocialPsychology #CognitiveDissonance

onlinelibrary.wiley.comDebunking “When Prophecy Fails”In 1954, Dorothy Martin predicted an apocalyptic flood and promised her followers rescue by flying saucers. When neither arrived, she recanted, her group dissolved, and efforts to proselytize ceased.....

Kelly (2025) emphasizes two points: a) unethical research methods and b) lack of proselytism effects. I completely agree the ethics were problematic—this has plagued social psychology for decades (see: Belmont Report, Milgram, Zimbardo). #ResearchEthics #PsychologyResearch

The proselytism effect was never robust. Hardyck & Braden (1962)—just 6 years later!—found disconfirmation and maintenance of the belief but NO proselytism. Batson (1975) confirmed: not everyone becomes a proselyte after disconfirmation. #replication

David C. Vaidis reposted

Was looking into what Cognitive Scientists mean by ‘domain-general’ cognition, and then hit upon this. This is definitely NOT how we use that term. Tip: read the last sentence to understand what went wrong here. Sigh.

Oups. 😄 It seems my close colleague forgot to cut my joke at the end of the sentence... And then not the editor, nor the people in charge of editing considered necessary to change it before publication! #SciencePublication #FunButSad #SadButTrue #FrenchAcademic

The 4th Big Team Science Conference (aka #BTSCON) will be held online October 6-8. A unique opportunity to discuss, join and anticipate the future of BTS. Registration is free/'what you can' but beware submission deadline is short! (31st July). bigteamscienceconference.github.io/submissions/ #psysci

bigteamscienceconference.github.iosubmissions>>> Submit your abstract here! Submissions for all session types are now open! * *Panels, hackathons, and symposia:* maximum 500 words * *Talks, lightning talks, and unconferences:* maximum 250 words ...

David C. Vaidis reposted

Shame on Wiley!

Peer Community in Registered Reports@pci-regreports.bsky.social

NEW: Statement from the PCI RR Managing Board on the withdrawal of Infant and Child Development as a PCI RR-friendly journal, and the decision by Wiley to refuse preprints that have been peer-reviewed by @peercommunityin.bsky.social / @pci-regreports.bsky.social Read here ➡️ osf.io/tn8mh

David C. Vaidis reposted

Ce fut une rencontre fort plaisante. Encore merci à tou•tes les communicant•es, au comité d'organisation et à toutes les personnes ayant assistées au CJC2025. A bientôt pour une prochaine rencontre de l'ADRIPS ! #ADRIPS #CJC2025 #Besançon

In France, only 3% of public spending goes to research — just €27B budgeted for 2025. Shockingly low for a country that prides itself on innovation. 🧪 Underfunded labs 🧠 Brain drain 🏫 Poor faculty conditions Investing in the future isn’t optional. #Research #Science #France #WhereGoesTaxes

Comment aider les chercheurs disposant de moins de ressources ou des réseaux moins développés à faire de la recherche ? L'étude bit.ly/GrEenwIch cartographie cela et s'adresse à des C, EC et post-doc. 20GBP à la clé pour les participants (voucher ou don). #FrenchAcademic #recherche à diffuser

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⚠️ Nous recherchons des chercheur-euse-s (C, EC, post-doc) pour participer à une étude collaborative internationale menée par l'Université de Greenwich. #FrenchAcademic #FrenchUniversities 📌 Lien vers l’étude : bit.ly/GrEenwIch Attention : les doctorants ne font pas partie de la population cible.

⏲️L'étude prend une dizaine de minutes tout au plus. Toutes les disciplines sont concernées et nous avons besoin d'un nombre important de participants en France pour garantir des résultats représentatifs.

⚠️ Nous recherchons des chercheur-euse-s (C, EC, post-doc) pour participer à une étude collaborative internationale menée par l'Université de Greenwich. #FrenchAcademic #FrenchUniversities 📌 Lien vers l’étude : bit.ly/GrEenwIch Attention : les doctorants ne font pas partie de la population cible.

⚠️ Nous recherchons des chercheur-euse-s (C, EC, post-doc) pour participer à une étude collaborative internationale menée par l'Université de Greenwich. #FrenchAcademic #FrenchUniversities 📌 Lien vers l’étude : bit.ly/GrEenwIch Attention : les doctorants ne font pas partie de la population cible.

🔬 Cette étude s'intéresse à l'activité de recherche en milieu académique, avec pour objectif ultime de soutenir les "pays du Sud", les minorités et d'autres groupes sous-représentés.

David C. Vaidis reposted

How accurately do citations reflect the original research? Do authors truly engage with what they cite? In a new study, we analyze millions of citation sentence pairs to measure citation fidelity and how it varies depending on authors’ engagement with prior literature. arxiv.org/abs/2502.20581 ⬇️

Got the same from France, with translation. Due to its allegiance and the power we grant it, Google threatens democracy by rewriting history. What a shame! #Google #democracy #MakeAmericaAdultAgainNotDangerousBullyingAsshole

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We talk a lot about predatory journals, but I just encountered my first PREDATORY PODCAST!🚨 www.scipod.global They reach out, set up a meeting, then—when you ask about their economic model—you realize they want £1000 for a 10-min recorded podcast. That’s here you run away. #PredatoryJournal #Scisky

Hoooops too bad. I won't change my practice concerning RR but I will delve into their registered report! I also think that finally, RRR are RR but I bet they are much more cited than any regular paper!

Mark Rubin@markrubin.bsky.social

New study finds Registered Reports have lower citation counts than non-Registered Reports doi.org/10.1037/amp0...