Olivier Klein
@olivierklein.bsky.social
📤 4030
📥 1244
📝 131
Professor of social psychology at Université libre de Bruxelles, Belgium. Daily 🚴 .
pinned post!
As anti-vax RFK will become US health secretary, now may be a good time to read our little book on the psychology of vaccination.
www.routledge.com/The-Psycholo...
loading . . .
The Psychology of Vaccination
Why do some people choose to be vaccinated and others do not? What is the difference between vaccine hesitancy and anti-vaccinism? What can social psychology tell us about attitudes towards vaccinatio...
https://www.routledge.com/The-Psychology-of-Vaccination/Klein-Yzerbyt/p/book/9781032665405
over 1 year ago
0
13
2
La psychologie francophone a perdu une de ses “voix”. Une spécialiste de la psychologie du numérique qui s’était notamment distinguée par ses talents de médiatrice scientifique. Quelle tristesse!
add a skeleton here at some point
2 months ago
0
7
1
reposted by
Olivier Klein
Kevin Collins
2 months ago
An mRNA treatment for PANCREATIC CANCER was in trials, among many other uses. Choosing to end this research is choosing to sentence millions to an early, painful death
add a skeleton here at some point
311
10222
4789
reposted by
Olivier Klein
Milgram de Savoirs
2 months ago
Face à une actualité anxiogène, comment accompagner les enfants à y faire face?
@olivierklein.bsky.social
, professeur en psychologie sociale de ULB nous donnent quelques éléments de réponse à travers ce nouveau 100g 🤩 👉https://milgram.ulb.be/100g/episodes-100g/enfants_actualite/ 📷 Fer Troulik
0
1
3
reposted by
Olivier Klein
Paul Bertin
3 months ago
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
loading . . .
LinkedIn
This link will take you to a page that’s not on LinkedIn
https://lnkd.in/erXmpcBm
0
6
6
reposted by
Olivier Klein
Genavee Brown
4 months ago
HDR Defended ✅ Thank you to everyone for all your support during the process. Special thanks to my jury members
@olivierklein.bsky.social
@majabecker.bsky.social
Maire-Pierre Fourquet-Courbet, Bo Sanisito, Pascal Huguet and Nicolas Michinov.
0
3
1
reposted by
Olivier Klein
Eric Umansky
5 months ago
WH sources say Venezuela's opposition leader committed the "ultimate sin": She accepted the Nobel Peace prize. “If she had turned it down and said, ‘I can’t accept it because it’s Donald Trump’s,’ she’d be the president of Venezuela today,” one said.
www.washingtonpost.com/national-sec...
537
8190
4721
reposted by
Olivier Klein
Craig Aaron
6 months ago
“Chilling and unconstitutional” —
@attorneynora.bsky.social
@freepress.bsky.social
loading . . .
U.S. Bars 5 European Tech Regulators and Researchers
https://www.nytimes.com/2025/12/23/technology/trump-rubio-european-tech-disinformation-digital-services-act.html?smid=nytcore-ios-share&referringSource=articleShare
4
152
52
reposted by
Olivier Klein
Paul Fairie
6 months ago
The 2025 Headline of the Year Nominees 🧵
28
1925
1328
reposted by
Olivier Klein
Kenzo Nera
6 months ago
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
add a skeleton here at some point
1
8
6
reposted by
Olivier Klein
Laurence Dierickx
6 months ago
I love when colleagues share amazing stories with me! Thanks
@olivierklein.bsky.social
They Droned Back - Young journalists expose Russian-linked vessels circling off the Dutch and German coast
www.digitaldigging.org/p/they-drone...
loading . . .
They Droned Back
Young journalists expose Russian-linked vessels circling off the Dutch and German coast
https://www.digitaldigging.org/p/they-droned-back?utm_campaign=post&utm_medium=web
1
2
1
New publication led by
@kenzonera.bsky.social
. A very instructive set of studies if you want to teach about transparency and replication.
add a skeleton here at some point
6 months ago
0
2
1
reposted by
Olivier Klein
Brent Toderian
6 months ago
This iconic Fabian Todorovic cartoon is still one of the best I’ve seen at illustrating the remarkable amount of space we surrender to cars, leaving little space left for everyone and everything else. The text added later makes the bonus point that many drivers still manage to complain about it.
11
739
327
reposted by
Olivier Klein
Leah McElrath
6 months ago
“The paper warned that, in an extreme scenario, a highly persuasive AI chatbot ‘could benefit unscrupulous actors wishing, for example, to promote radical political or religious ideologies or foment political unrest among geopolitical adversaries.’” (I do not think this is an “extreme scenario”…)
add a skeleton here at some point
3
42
16
reposted by
Olivier Klein
Josh McCrain
7 months ago
new paper by Sean Westwood: With current technology, it is impossible to tell whether survey respondents are real or bots. Among other things, makes it easy for bad actors to manipulate outcomes. No good news here for the future of online-based survey research
40
775
517
reposted by
Olivier Klein
Linda Tropp
7 months ago
knowing many directly affected, I personally asked some senior male colleagues to speak out about this during my earlier years as a professor, as i felt too vulnerable due to my stage of career.. it was shocking how much this was 'common knowledge' among women and how few male colleagues knew 😔
add a skeleton here at some point
0
28
12
reposted by
Olivier Klein
Fiona Kazarovytska
7 months ago
Join us for the EASP 2026 Preconference: "Social Psychological Processes of Collective Memory"
@easp2026.bsky.social
✨ With
@olivierklein.bsky.social
@jrvollhardt.bsky.social
@michelletwali.bsky.social
@elifsandal.bsky.social
@laurentlicata.bsky.social
Submit here:
www.easp.eu/news/itm/cal...
loading . . .
CALL FOR SUBMISSIONS – EASP 2026 PRECONFERENCES
Social Psychology News Articles
https://www.easp.eu/news/itm/call_for_submissions_easp_2026_p-2155.html
0
13
11
If you are interested in collective memory and plan to attend the EASP General Meeting in Strasburg, don't miss our preconference!
add a skeleton here at some point
7 months ago
0
2
0
reposted by
Olivier Klein
Sydney Levine
7 months ago
I'm recruiting a grad student! My lab at NYU (psych dept) studies the computational basis of moral cognition and aims to build AI systems that are aligned with human values. Now admitting a PhD student for Fall 2026. Apps due 12/1.
sites.google.com/corp/site/sy...
loading . . .
Sydney Levine - Open Positions
Graduate Students (PhD program) I will be accepting PhD students through the NYU psychology department for the current application cycle (for admission in Fall 2026). My lab is joint between the Co...
https://sites.google.com/corp/site/sydneymlevine/open-positions
1
38
22
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.
add a skeleton here at some point
7 months ago
1
9
2
reposted by
Olivier Klein
Sander van der Linden
7 months ago
Yes the BBC edit was poor journalistic form but the research indeed shows that Trump's speech predicted riots, violence, and weapons use on January 6th.
add a skeleton here at some point
3
53
18
reposted by
Olivier Klein
Paul Bertin
8 months ago
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/...
loading . . .
The Impact of Freedom of Speech on Conspiracy Beliefs
Conspiracy beliefs are often portrayed as a threat to democracies. However, less is known about the extent to which the state of democracy may affect conspiracy beliefs. Hence, we investigated the im...
https://onlinelibrary.wiley.com/doi/10.1002/ejsp.70029
0
10
3
reposted by
Olivier Klein
Kyle Griffin
8 months ago
A library director in Wyoming who was fired two years ago because she refused to remove books with sexual content and LGBTQ themes from a library's children and young adult sections has just been awarded $700,000 in a settlement.
t.co/EA5L1kOZfV
loading . . .
https://www.nytimes.com/2025/10/09/us/wyoming-library-settlement-book-bans-terri-lesley.html?smtyp=cur&smid=fb-nytimes&fbclid=IwdGRjcANWLXdleHRuA2FlbQIxMQABHhlnY6nKj_j4zuP3VjNSstXWBaV1t8-sPQ5C3b_jS6WN...
https://t.co/EA5L1kOZfV
146
8081
2050
reposted by
Olivier Klein
Edwy Plenel
9 months ago
Cinq ans après la pandémie de Covid-19, l’autorité chargée de la politique vaccinale aux États-Unis se réunit à New York. Mais elle est désormais composée d’opposants aux vaccins nommés par le premier d’entre eux, le ministre de la santé Robert Kennedy Jr.
www.mediapart.fr/journal/inte...
loading . . .
États-Unis : les antivax prennent le pouvoir sur la santé
L’autorité sanitaire chargée de la politique vaccinale se réunit jeudi et vendredi à New York. Mais cinq ans après le début de la pandémie de covid-19, elle est désormais composée d’opposants aux vac…
https://www.mediapart.fr/journal/international/180925/etats-unis-les-antivax-prennent-le-pouvoir-sur-la-sante
3
37
15
reposted by
Olivier Klein
Ben Williamson
9 months ago
Journal publishers *are* bundling your papers up in "data licensing agreements" for big tech companies to use for AI model training. Our publisher, T&F, got £75m from Microsoft for that last year alone.
10
571
171
reposted by
Olivier Klein
Adam Kucharski
10 months ago
Results so stunningly clear they inspired this classic xkcd (
xkcd.com/2400/
):
add a skeleton here at some point
17
3976
1362
reposted by
Olivier Klein
Jessica Eaton
10 months ago
Wow and wow and WE MUST ALL DO THIS!!
add a skeleton here at some point
0
121
18
This post has not aged badly unfortunately.
add a skeleton here at some point
10 months ago
0
4
2
reposted by
Olivier Klein
Annette Yoshiko Reed
10 months ago
“Chicago has long helped to keep alive tiny fields & esoteric areas of humanistic study... Without the univ’s support, & the continued training of grad students who can keep these bodies of kn going, entire spheres of human learning might eventually blink out.”
www.theatlantic.com/culture/arch...
loading . . .
If the University of Chicago Won’t Defend the Humanities, Who Will?
Why it matters that the University of Chicago is pausing admissions to doctoral programs in literature, philosophy, the arts, and languages
https://www.theatlantic.com/culture/archive/2025/08/university-chicago-humanities-doctorate/684004/?gift=m5irZtWeVchrwf45AZUzlZTRznTyvHYJehbAWpYDNu4
6
264
111
reposted by
Olivier Klein
Vincent Lemire
10 months ago
Plus envie d'argumenter, plus envie de documenter. Tout est là, sous nos yeux. Mais comment faire prendre conscience de ce qu'est une famine?
7
258
190
reposted by
Olivier Klein
samuel mehr
10 months ago
My dept at the University of Auckland (NZ) will be hiring in social psych at the junior level this cycle. Official ad to follow It's a big research-active dept with fun colleagues, plus you can commute to uni on a boat, paired with a pleasant walk thru Albert Park (this pic from heading home today)
2
57
41
reposted by
Olivier Klein
Brent Toderian
10 months ago
As our kids go
#BackToSchool
, never forget that we ARE the traffic that we’re afraid of. If more kids walked, biked or rode transit to school, it would erase a massive number of car trips each day, and our kids would be safer, healthier and better at school. HT Ian Lockwood. Spread the word.
22
566
229
reposted by
Olivier Klein
Sciencepo ULB
11 months ago
[Job] The Policy Lab at
@ulbruxelles.bsky.social
seeks to recruit a postdoctoral researcher (full time, 2 years) in the framework of the project 'Metropolitan internet meets post-growth' Deadline: 30 August
0
0
1
reposted by
Olivier Klein
Julia M. Rohrer
11 months ago
New blog post! Calculating a correlation is easy enough. But let's say you calculated two of them and they happen to differ. What follows from that? Turns out there are too many moving parts for an easy answer.
www.the100.ci/2025/07/28/w...
loading . . .
What’s in a correlation?
Correlation may not imply causation, but let’s just ignore that for a second. Correlations are standardized effect size metrics and as such have some quirks by design. These are benign enough when you...
https://www.the100.ci/2025/07/28/whats-in-a-correlation/
8
86
29
reposted by
Olivier Klein
Julie Carpenter, PhD
11 months ago
I'm quoted in this piece. In short: do not use ChatGPT or any generative AI as a “therapist.” It’s not sentient. It doesn’t care. It may even lead people toward harm. And nothing shared is protected by HIPAA or real privacy standards; it's fodder for the machine.
www.dazeddigital.com/life-culture...
loading . . .
AI is transforming how we communicate in relationships
‘All I wanted was to feel seen, heard and understood by him, but instead, he was sending me a robot’s questions’
https://www.dazeddigital.com/life-culture/article/68306/1/how-ai-chatgpt-communicate-love-dating-romance-robot-prompts
2
271
135
www.nytimes.com/2025/07/26/w...
loading . . .
No Proof Hamas Routinely Stole U.N. Aid, Israeli Military Officials Say
https://www.nytimes.com/2025/07/26/world/middleeast/hamas-un-aid-theft.html?smid=nytcore-ios-share&referringSource=articleShare
11 months ago
0
3
0
reposted by
Olivier Klein
Caroline Van Wynsberghe
11 months ago
"De grâce, que la Belgique ne réagisse pas trop tard. En commençant par manifester une indignation commune devant des menaces envers les magistrats, car cette indignation est le premier bouclier pour protéger les défenseurs de l’Etat."
add a skeleton here at some point
1
7
2
reposted by
Olivier Klein
Gordon Hodson
11 months ago
Clear advice from
@catherinedevries.bsky.social
on clear writing. Who could argue with such solid advice? (he naively asks the internet)
add a skeleton here at some point
2
22
9
reposted by
Olivier Klein
Adrien Fillon
11 months ago
Is there a difference between falsification and refutation? Popper used the former in the book about logic of scientific discovery and the latter in the last (conjecture and refutation). And I never understood the difference.
3
3
1
Very sad to learn that Helen De Cruz, who had been a constant online presence for me on Twitter and then here, passed away. Read her last blog post. A little gem on what we leave to others.
add a skeleton here at some point
12 months ago
1
7
1
reposted by
Olivier Klein
Ultimes scories
12 months ago
La Pride de Budapest interdite par Orban. Rien n’arrête les libertés. Surtout pas le fascisme
7
581
186
reposted by
Olivier Klein
Lucky BJSP, who has gained a wise, enthusiastic and witty new associate editor!
add a skeleton here at some point
12 months ago
0
2
1
Lucky BJSP, who has gained a wise, enthusiastic and witty new associate editor!
add a skeleton here at some point
12 months ago
0
2
1
reposted by
Olivier Klein
Julia M. Rohrer
12 months ago
Great post on the many bad effects of measles. That Roald Dahl letter of his daughter's death gets me every time tho 😔
add a skeleton here at some point
0
19
7
reposted by
Olivier Klein
Krassensteins
12 months ago
Best image of the day:
589
35217
9657
reposted by
Olivier Klein
Julia M. Rohrer
about 1 year ago
"Simpson's gender-equality paradox" surely deserve some award for best title 👑 The gender-equality paradox seems really central to some narrative people have constructed (and successfully sold). I absolutely wouldn't be surprised if it turned out 100% confounding.>
www.pnas.org/doi/10.1073/...
7
165
51
reposted by
Olivier Klein
Daniel Lakens
about 1 year ago
I often see Ioannidis' paper 'Why most published research findings are false' on reading lists. And by all means - I found it educational when I first read it. But you might also want a summary of the criticisms on the paper, and we dive into these in our
@nulliusinverba.bsky.social
podcast episode.
add a skeleton here at some point
0
35
6
Entendu à un colloque: selon une enquête faite sur un échantillon français (supposé représentatif), on arrête d’être jeune à 42 ans et on devient âgé à 64 ans…
about 1 year ago
2
1
1
reposted by
Olivier Klein
Daniel Lakens
about 1 year ago
It can be interesting to read why so many psychological scientists have raised concerns - which twice led to a crisis - about (social) psychology for over half a century. There are important lessons we can learn from our history about why these concerns have not been solved.
add a skeleton here at some point
2
8
4
reposted by
Olivier Klein
Paul Bertin
about 1 year ago
Great talk by
@rritabajraktari.bsky.social
at
@bapsciences.bsky.social
2025, with a proud supervisor
@olivierklein.bsky.social
!
1
6
2
reposted by
Olivier Klein
The New Yorker
about 1 year ago
Academic freedom in the United States has found itself periodically under siege, but the current attacks from the federal government raise a new level of alarm.
nyer.cm/u405qvQ
283
13202
4189
Load more
feeds!
log in