Want to come work with @olivierklein.bsky.social and me on a socially relevant topic in a warm research center full of amazing people, in the no-less international and vibrant city of Brussels? And for three years, full-time?
Then apply by April 15!
More details here: lnkd.in/erXmpcBm
In short, placing information in supplementary materials should be justified, organised within and between files, and controlled by peers.
The article is behind a paywall due to Springer Nature’s outrageous publication fees, but it can be accessed a few times through this link: rdcu.be/e6q9f
In the article, I discuss the influence of external constraints, such as word limits, in shaping the use of supplementary materials. I also review possible solutions to better organise information between the main document and the supplements.
While the file drawer problem is about selectively *reporting* findings, misusing supplementary materials is about selectively *presenting* information. Everything is technically there and available, but not all elements are made equally visible to readers.
In this short commentary, I argue that supplementary materials may provide the perfect opportunity to spin findings and make manuscripts look more consistent, a kind of file drawer 2.0.
Who cares about supplementary materials?
Is there any research activity less stimulating than checking these endless, messy files?
Unfortunately, blind spots rarely bode well for science.
This was not an easy one to write, but here it is!
🎈🤡 Freshly published in Collabra: Psychology: the life and death of one of the coolest findings in my PhD dissertation. 🎈🤡
With the usual – and wonderful – Karen M. Douglas, @paulbertin.bsky.social, and @olivierklein.bsky.social.
1/11
New publication. Congrats to the whole team, and especially @paulbertin.bsky.social who led this effort. Thanks also to the editor (Nicolas Sommet) and reviewers, who desserve credit for improving our paper.
Shout-out to the best possible team of co-authors: Elisa Tognon, @kenzonera.bsky.social, @rritabajraktari.bsky.social, Vincent Yzerbyt, @olivierklein.bsky.social, and Klein Pit (who originally started this project).
OA here: onlinelibrary.wiley.com/doi/10.1002/...
We found robust evidence that lower freedom of speech increases conspiracy beliefs.
This effect was consistent across contexts and held even when controlling for perceived levels of democracy, highlighting the specific nature of this relationship.
🚨 New paper out in the European Journal of Social Psychology!
Across one study using aggregated nation-level data and four preregistered experiments, we examined how freedom of speech within a society influences belief in conspiracy theories.
I am so excited to announce the publication of my first PhD paper, written in collaboration with Laurent Licata and amazing participants!
“We Are No Longer the First to Lead the Dance”: Analysing Intergroup Conflicts Within the French-Speaking Belgian Feminist Movement
doi.org/10.1002/casp...
📢 Thèse en psychologie sociale
Le LAPSCO (Université Clermont Auvergne / CNRS) recrute un·e doctorant·e à partir du 1er octobre 2025, dans le cadre du projet ANR IDEOPOL portant sur la polarisation idéologique.
📄 Détail de l’offre et candidature :
tinyurl.com/nzw896bf
Merci de partager !
Exactement 😂
Merci à @adrienfillon.bsky.social et @nathlarigaldie.bsky.social pour ce super moment 😊
Version clickbait du titre : ils découvrent en live l'identité du pair qui a expertisé leur papier… leur réaction est incroyable !
If you work in psychology in a research area without Registered Reports, you will see that the main hypotheses in papers are almost always supported. If your peers publish Registered Reports, you will also have access to null results, which should be very common. doi.org/10.1177/2515...
Great talk by @rritabajraktari.bsky.social at @bapsciences.bsky.social 2025, with a proud supervisor @olivierklein.bsky.social!
📢 AFR-PsyPol fait ses 1ers pas sur les réseaux ! Nous sommes l'Association Francophone pour la Recherche en Psychologie Politique et avons pour but de promouvoir la recherche et la coopération en #Psychologie #Politique. Envie d'en savoir davantage ? Découvrez nous ici : afr-psypol.org
Inspired by my reading this week, I wrote a list of the resources I think every cognitive science researcher should read/listen to about theory development. It's in this google.doc (feel free to add your own suggestions) and in the thread below. docs.google.com/document/d/1...
🚨 New Manylabs launch 🚀
How does extreme heat affect our cognition & social behaviors?
Contribute & become a co-author:
🔗 Info: heatandmind.wordpress.com
📋 Sign up: www.soscisurvey.de/HeatandCogni...
Please share 🔁
#EnvironmentalPsychology
I am super happy to back my most appreciated and trustworthy partner in crime in this great piece (in all objectivity of course)! #metascience #transparency #virtuesignaling
This trilemma may have detrimental consequences for open science practices, turning them into a form of virtue signalling that compensates for low transparency.
To learn more about the trilemma, its consequences, and potential solutions to alleviate its pressure, check out the open-access article:
New publication with my dearest friend, @kenzonera.bsky.social!
We propose that multi-study articles can hardly achieve conceptual novelty and statistical consistency while remaining transparent.
Fulfilling two of these criteria considerably reduces the probability of satisfying the third one.
Are there any fully online or hybrid conferences in social/political psychology?
Merci 😁
S/O to YouTubers (Wiloo, Les Outsiderz) and @lequipedusoir.bsky.social journalists (l'immense et regretté Didier Roustan, Guillaume Dufy, Philippe Sanfourche) who shared our survey.
Thanks also to @olivierklein.bsky.social for his help in designing nice figures!
Preprint: osf.io/preprints/ps...
Boycott behaviors may be hard for sports fans to maintain due to the lack of alternative products.
Ultimately, boycott may reflect low fandom rather than high political engagement.
In the end, lasting boycotters may be those uninterested in sports events, making the boycott poorly consequential.
Even more puzzling was the finding that this decrease occurred regardless of French fans' political concerns about minorities and environmental issues—the best predictors of boycott intentions.
In other words, politicized fans struggled to maintain the boycott.
Then, we compared fans' intentions before the WC with their actual boycott behavior after the tournament.
We observed a decrease in all countries, but it was only significant in France—likely due to limited statistical power in other countries and the strong performance of the French team.
We investigated boycott intentions in France, Belgium, Canada, and Switzerland (N = 1,635).
Boycott intentions were tied to concerns about environmental and minority issues.
Rejection of the boycott was best predicted by strong identification with the team and enjoying football’s aesthetic appeal.
