Bastian Jaeger
@bxjaeger.bsky.social
Assistant Professor @ Tilburg University 🇳🇱
❤️🧠Moral Psychology & Altruism
🌚🌝First impressions & Social biases
🔬📊Meta-science
❤️🧠Moral Psychology & Altruism
🌚🌝First impressions & Social biases
🔬📊Meta-science
Reposted by Bastian Jaeger
#AcademicSky #PsychSciSky
Also...
Americans consider Psychology among most interesting disciplines to study!
(Explains why psych depts have healthy numbers at most unis)
Also...
Americans consider Psychology among most interesting disciplines to study!
(Explains why psych depts have healthy numbers at most unis)
January 2, 2026 at 7:38 PM
#AcademicSky #PsychSciSky
Also...
Americans consider Psychology among most interesting disciplines to study!
(Explains why psych depts have healthy numbers at most unis)
Also...
Americans consider Psychology among most interesting disciplines to study!
(Explains why psych depts have healthy numbers at most unis)
Reposted by Bastian Jaeger
Partisans differ in economic perceptions based on who is president, even if you pay them to get correct answers:
www.cambridge.org/core/journal...
www.cambridge.org/core/journal...
Expressive Responding and the Economy: The Case of Trump’s Return to Office | Journal of Experimental Political Science | Cambridge Core
Expressive Responding and the Economy: The Case of Trump’s Return to Office
www.cambridge.org
December 20, 2025 at 6:41 PM
Partisans differ in economic perceptions based on who is president, even if you pay them to get correct answers:
www.cambridge.org/core/journal...
www.cambridge.org/core/journal...
Reposted by Bastian Jaeger
Join our Replicability Project: Health Behavior!
We have 55 replication studies underway, our target is 65-70.
We are only recruiting for secondary data replications--i.e., using existing data to test the original question.
Here's a list of studies we think could be feasible.
If interested...
We have 55 replication studies underway, our target is 65-70.
We are only recruiting for secondary data replications--i.e., using existing data to test the original question.
Here's a list of studies we think could be feasible.
If interested...
Replications Sourcing Sheet
docs.google.com
December 18, 2025 at 2:29 PM
Join our Replicability Project: Health Behavior!
We have 55 replication studies underway, our target is 65-70.
We are only recruiting for secondary data replications--i.e., using existing data to test the original question.
Here's a list of studies we think could be feasible.
If interested...
We have 55 replication studies underway, our target is 65-70.
We are only recruiting for secondary data replications--i.e., using existing data to test the original question.
Here's a list of studies we think could be feasible.
If interested...
Many common practices in US animal agriculture (cutting off chickens' beaks or castrating calves without pain relief) are seen as unacceptable by the US public. @faunalytics.bsky.social
An earlier study in the UK found very similar results.
faunalytics.org/public-accep...
An earlier study in the UK found very similar results.
faunalytics.org/public-accep...
December 18, 2025 at 2:08 PM
Many common practices in US animal agriculture (cutting off chickens' beaks or castrating calves without pain relief) are seen as unacceptable by the US public. @faunalytics.bsky.social
An earlier study in the UK found very similar results.
faunalytics.org/public-accep...
An earlier study in the UK found very similar results.
faunalytics.org/public-accep...
Reposted by Bastian Jaeger
A recent study purports to have found that multilingualism protects against accelerated ageing. I've taken a closer look at it, and it doesn't look good.
New blog post: "Does multilingualism really protect against accelerated ageing? Some critical comments"
janhove.github.io/posts/2025-1...
New blog post: "Does multilingualism really protect against accelerated ageing? Some critical comments"
janhove.github.io/posts/2025-1...
December 15, 2025 at 5:07 PM
A recent study purports to have found that multilingualism protects against accelerated ageing. I've taken a closer look at it, and it doesn't look good.
New blog post: "Does multilingualism really protect against accelerated ageing? Some critical comments"
janhove.github.io/posts/2025-1...
New blog post: "Does multilingualism really protect against accelerated ageing? Some critical comments"
janhove.github.io/posts/2025-1...
Reposted by Bastian Jaeger
Did you know that from tomorrow, Qualtrics is offering synthetic panels (AI-generated participants)?
Follow me down a rabbit hole I'm calling "doing science is tough and I'm so busy, can't we just make up participants?"
Follow me down a rabbit hole I'm calling "doing science is tough and I'm so busy, can't we just make up participants?"
December 16, 2025 at 5:38 PM
Did you know that from tomorrow, Qualtrics is offering synthetic panels (AI-generated participants)?
Follow me down a rabbit hole I'm calling "doing science is tough and I'm so busy, can't we just make up participants?"
Follow me down a rabbit hole I'm calling "doing science is tough and I'm so busy, can't we just make up participants?"
Reposted by Bastian Jaeger
🚀 Announcing the Besample Dissertation Grant (N=3,000)
If you’re a Ph.D. student in psychology, economics, sociology, political science, communication, or any related field, this is your chance to get full funding for testing your theory across cultures.
Apply: study.besample.app/jfe/form/SV_...
If you’re a Ph.D. student in psychology, economics, sociology, political science, communication, or any related field, this is your chance to get full funding for testing your theory across cultures.
Apply: study.besample.app/jfe/form/SV_...
Qualtrics Survey | Qualtrics Experience Management
The most powerful, simple and trusted way to gather experience data. Start your journey to experience management and try a free account today.
study.besample.app
November 10, 2025 at 9:30 PM
🚀 Announcing the Besample Dissertation Grant (N=3,000)
If you’re a Ph.D. student in psychology, economics, sociology, political science, communication, or any related field, this is your chance to get full funding for testing your theory across cultures.
Apply: study.besample.app/jfe/form/SV_...
If you’re a Ph.D. student in psychology, economics, sociology, political science, communication, or any related field, this is your chance to get full funding for testing your theory across cultures.
Apply: study.besample.app/jfe/form/SV_...
Reposted by Bastian Jaeger
One myth about empathy not included is that people know how empathic they are. Bill Ickes has shown no significant correlation has been found between the scores on various empathy scales and the measurement of empathic accuracy.
December 16, 2025 at 2:48 PM
One myth about empathy not included is that people know how empathic they are. Bill Ickes has shown no significant correlation has been found between the scores on various empathy scales and the measurement of empathic accuracy.
A list of 7 claims about empathy that many people agree with, but that are likely wrong.
compass.onlinelibrary.wiley.com/doi/pdf/10.1...
compass.onlinelibrary.wiley.com/doi/pdf/10.1...
December 16, 2025 at 2:19 PM
A list of 7 claims about empathy that many people agree with, but that are likely wrong.
compass.onlinelibrary.wiley.com/doi/pdf/10.1...
compass.onlinelibrary.wiley.com/doi/pdf/10.1...
Participants reported that reducing meat intake was more challenging when
- eating out vs. at home
- eating in company vs. alone
- during dinner vs. other meals
www.sciencedirect.com/science/arti...
- eating out vs. at home
- eating in company vs. alone
- during dinner vs. other meals
www.sciencedirect.com/science/arti...
December 11, 2025 at 1:45 PM
Participants reported that reducing meat intake was more challenging when
- eating out vs. at home
- eating in company vs. alone
- during dinner vs. other meals
www.sciencedirect.com/science/arti...
- eating out vs. at home
- eating in company vs. alone
- during dinner vs. other meals
www.sciencedirect.com/science/arti...
Reposted by Bastian Jaeger
Adversarial collaboration by @jordanaxt.bsky.social et al suggests implicit racial bias has a small (2.5%) additional effect on discriminatory behaviour, but explicit racial attitude predicts 45% of discrimination:
buff.ly/0ws4BAL
TL;DR:🧵https://buff.ly/Cr0jLml
buff.ly/0ws4BAL
TL;DR:🧵https://buff.ly/Cr0jLml
December 11, 2025 at 9:18 AM
Adversarial collaboration by @jordanaxt.bsky.social et al suggests implicit racial bias has a small (2.5%) additional effect on discriminatory behaviour, but explicit racial attitude predicts 45% of discrimination:
buff.ly/0ws4BAL
TL;DR:🧵https://buff.ly/Cr0jLml
buff.ly/0ws4BAL
TL;DR:🧵https://buff.ly/Cr0jLml
Reposted by Bastian Jaeger
What do children and adults in 33 communities think about animal minds? New collaborative research from our team of >50 collaborators show universal beliefs that while animals feel like us, our (human) thoughts are different/unique!
Check it out: www.sciencedirect.com/science/arti... #mindperception
Check it out: www.sciencedirect.com/science/arti... #mindperception
Children and adults across 15 countries believe in human uniqueness of mind: a cross-cultural investigation of cross-species mind perception
The way humans relate to other animals is fundamentally shaped by whether we perceive ourselves as unique, with feelings and thoughts not shared by ot…
www.sciencedirect.com
December 9, 2025 at 1:56 AM
What do children and adults in 33 communities think about animal minds? New collaborative research from our team of >50 collaborators show universal beliefs that while animals feel like us, our (human) thoughts are different/unique!
Check it out: www.sciencedirect.com/science/arti... #mindperception
Check it out: www.sciencedirect.com/science/arti... #mindperception
Reposted by Bastian Jaeger
Great article about fertility in South Korea. That motherhood penalty 😳
worksinprogress.co/issue/two-is...
worksinprogress.co/issue/two-is...
December 10, 2025 at 3:58 PM
Great article about fertility in South Korea. That motherhood penalty 😳
worksinprogress.co/issue/two-is...
worksinprogress.co/issue/two-is...
Reposted by Bastian Jaeger
Many psychologists are treating LLMs as if they are the mind of god.
This study had chatGPT rate how central academic disciplines are to various constructs.
Why would chatGPT know this?
Where is the evidence its ratings are reliable or valid?
compass.onlinelibrary.wiley.com/doi/full/10....
This study had chatGPT rate how central academic disciplines are to various constructs.
Why would chatGPT know this?
Where is the evidence its ratings are reliable or valid?
compass.onlinelibrary.wiley.com/doi/full/10....
December 10, 2025 at 10:09 AM
Many psychologists are treating LLMs as if they are the mind of god.
This study had chatGPT rate how central academic disciplines are to various constructs.
Why would chatGPT know this?
Where is the evidence its ratings are reliable or valid?
compass.onlinelibrary.wiley.com/doi/full/10....
This study had chatGPT rate how central academic disciplines are to various constructs.
Why would chatGPT know this?
Where is the evidence its ratings are reliable or valid?
compass.onlinelibrary.wiley.com/doi/full/10....
Reposted by Bastian Jaeger
Achal Agrawal is on Nature’s list of 10 people who shaped science in 2025. His work helped change India’s university rankings system to include a penalty for large number of retractions.
www.nature.com/articles/d41...
www.nature.com/articles/d41...
This science sleuth revealed a retraction crisis at Indian universities
Achal Agrawal is part of Nature’s 10, a list of people who shaped science in 2025.
www.nature.com
December 9, 2025 at 5:13 PM
Achal Agrawal is on Nature’s list of 10 people who shaped science in 2025. His work helped change India’s university rankings system to include a penalty for large number of retractions.
www.nature.com/articles/d41...
www.nature.com/articles/d41...
Evolutionary principles are often mischaracterized and misapplied, also by laypeople.
This paper explores the use of evolutionary arguments and speculations in the online "manosphere".
doi.org/10.1017/ehs....
This paper explores the use of evolutionary arguments and speculations in the online "manosphere".
doi.org/10.1017/ehs....
December 9, 2025 at 1:20 PM
Evolutionary principles are often mischaracterized and misapplied, also by laypeople.
This paper explores the use of evolutionary arguments and speculations in the online "manosphere".
doi.org/10.1017/ehs....
This paper explores the use of evolutionary arguments and speculations in the online "manosphere".
doi.org/10.1017/ehs....
Reposted by Bastian Jaeger
🚨STOP, replication time!🚨
Does Feeling “Right” Make the Good More Good (and the Bad More Bad)?
Achar & Lee found that when people experience regulatory fit, moral predispositions get amplified—moral folks act more moral, less moral folks act less moral. Big, exciting claim!
Does Feeling “Right” Make the Good More Good (and the Bad More Bad)?
Achar & Lee found that when people experience regulatory fit, moral predispositions get amplified—moral folks act more moral, less moral folks act less moral. Big, exciting claim!
December 9, 2025 at 1:08 PM
🚨STOP, replication time!🚨
Does Feeling “Right” Make the Good More Good (and the Bad More Bad)?
Achar & Lee found that when people experience regulatory fit, moral predispositions get amplified—moral folks act more moral, less moral folks act less moral. Big, exciting claim!
Does Feeling “Right” Make the Good More Good (and the Bad More Bad)?
Achar & Lee found that when people experience regulatory fit, moral predispositions get amplified—moral folks act more moral, less moral folks act less moral. Big, exciting claim!
Reposted by Bastian Jaeger
Special issue on meta-science in Journal of Economic Psychology! Topics covered among others: expert-informed approaches, normative biases and crowd-science. Submitted papers evaluated & published on rolling basis. @i4replication.bsky.social www.sciencedirect.com/special-issu...
December 4, 2025 at 3:55 PM
Special issue on meta-science in Journal of Economic Psychology! Topics covered among others: expert-informed approaches, normative biases and crowd-science. Submitted papers evaluated & published on rolling basis. @i4replication.bsky.social www.sciencedirect.com/special-issu...
Reposted by Bastian Jaeger
"Replication rates are higher than experts predicted and p-hacking is much less common than we expected!"
replications.clearerthinking.org/three-surpri...
replications.clearerthinking.org/three-surpri...
December 5, 2025 at 8:59 AM
"Replication rates are higher than experts predicted and p-hacking is much less common than we expected!"
replications.clearerthinking.org/three-surpri...
replications.clearerthinking.org/three-surpri...
Reposted by Bastian Jaeger
Excited to share a Registered Report in J. of Personality looking at the “perils of partialing” – led by the Bluesky-less Leigha Rose with @drlynam.bsky.social and me. (1)
onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com/doi/10.1111/...
Perils of Partialing: Can Scholars Predict Residualized Variables' Nomological Nets?
Objective Partialing is a statistical procedure in which the variance shared among two or more constructs is removed, allowing researchers to examine the unique properties of the residualized, parti...
onlinelibrary.wiley.com
December 4, 2025 at 5:07 PM
Excited to share a Registered Report in J. of Personality looking at the “perils of partialing” – led by the Bluesky-less Leigha Rose with @drlynam.bsky.social and me. (1)
onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com/doi/10.1111/...
This review highlights that some behaviors are moral and prosocial but go against social norms, and the people who engage in them can be stigmatized.
osf.io/preprints/ps...
osf.io/preprints/ps...
December 4, 2025 at 3:49 PM
This review highlights that some behaviors are moral and prosocial but go against social norms, and the people who engage in them can be stigmatized.
osf.io/preprints/ps...
osf.io/preprints/ps...
Are people on the political right more rigid in their thinking?
Or is it people on both extreme ends of the political spectrum?
This adversarial collaboration found some evidence for both but differences were generally small.
doi.org/10.1111/pops...
Or is it people on both extreme ends of the political spectrum?
This adversarial collaboration found some evidence for both but differences were generally small.
doi.org/10.1111/pops...
December 2, 2025 at 2:54 PM
Are people on the political right more rigid in their thinking?
Or is it people on both extreme ends of the political spectrum?
This adversarial collaboration found some evidence for both but differences were generally small.
doi.org/10.1111/pops...
Or is it people on both extreme ends of the political spectrum?
This adversarial collaboration found some evidence for both but differences were generally small.
doi.org/10.1111/pops...
Reposted by Bastian Jaeger
#AcademicSky #PsychSciSky
New paper #PSPB
More evidence that liberals and conservatives think differently.
Here, conservatives engage in more slippery-slope thinking
journals.sagepub.com/doi/epub/10....
New paper #PSPB
More evidence that liberals and conservatives think differently.
Here, conservatives engage in more slippery-slope thinking
journals.sagepub.com/doi/epub/10....
December 2, 2025 at 2:45 PM
#AcademicSky #PsychSciSky
New paper #PSPB
More evidence that liberals and conservatives think differently.
Here, conservatives engage in more slippery-slope thinking
journals.sagepub.com/doi/epub/10....
New paper #PSPB
More evidence that liberals and conservatives think differently.
Here, conservatives engage in more slippery-slope thinking
journals.sagepub.com/doi/epub/10....
Reposted by Bastian Jaeger
New paper in press at JPSP! An adversarial collaboration focusing on a large-scale test of how strongly implicit racial attitudes predict discriminatory behavior. Pre-print here: osf.io/preprints/ps...
December 2, 2025 at 2:14 PM
New paper in press at JPSP! An adversarial collaboration focusing on a large-scale test of how strongly implicit racial attitudes predict discriminatory behavior. Pre-print here: osf.io/preprints/ps...
Reposted by Bastian Jaeger
A diverse range of mammals once roamed the planet. This changed dramatically with the arrival of humans, who have become the dominant species through our own population, as well as the animals we breed and raise for food.
What is the distribution of the global mammal kingdom today?
What is the distribution of the global mammal kingdom today?
December 1, 2025 at 10:12 AM
A diverse range of mammals once roamed the planet. This changed dramatically with the arrival of humans, who have become the dominant species through our own population, as well as the animals we breed and raise for food.
What is the distribution of the global mammal kingdom today?
What is the distribution of the global mammal kingdom today?