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
1/4
Policymakers often do listen to publics when formulating preferences on nuclear weapon use. Our #OpenAccess article provides first-of-kind evidence about when publics enable, constrain, or are less influential. @ejisbisa.bsky.social @cambup-polsci.cambridge.org
Link: doi.org/10.1017/eis....
Policymakers often do listen to publics when formulating preferences on nuclear weapon use. Our #OpenAccess article provides first-of-kind evidence about when publics enable, constrain, or are less influential. @ejisbisa.bsky.social @cambup-polsci.cambridge.org
Link: doi.org/10.1017/eis....
November 12, 2025 at 2:45 PM
1/4
Policymakers often do listen to publics when formulating preferences on nuclear weapon use. Our #OpenAccess article provides first-of-kind evidence about when publics enable, constrain, or are less influential. @ejisbisa.bsky.social @cambup-polsci.cambridge.org
Link: doi.org/10.1017/eis....
Policymakers often do listen to publics when formulating preferences on nuclear weapon use. Our #OpenAccess article provides first-of-kind evidence about when publics enable, constrain, or are less influential. @ejisbisa.bsky.social @cambup-polsci.cambridge.org
Link: doi.org/10.1017/eis....
Reposted by Bastian Jaeger
~40% of psyarxiv preprints contain links to open data in 2025 vs (e.g.) ~10% in 2019 (although in the latter case people mostly did not report this metadata): vuorre.com/psyarxiv-das...
November 12, 2025 at 2:50 PM
~40% of psyarxiv preprints contain links to open data in 2025 vs (e.g.) ~10% in 2019 (although in the latter case people mostly did not report this metadata): vuorre.com/psyarxiv-das...
Reposted by Bastian Jaeger
Results from study of mental health in 92 countries (n>53,000): People are not doing well.
- U-shape for age is gone: Young adults lowest health, highest illness
- Education still matters (a lot)
- 45% of older people live alone
- Hybrid work > 100% remote or in-person
Preprint: osf.io/3jyda_v1
- U-shape for age is gone: Young adults lowest health, highest illness
- Education still matters (a lot)
- 45% of older people live alone
- Hybrid work > 100% remote or in-person
Preprint: osf.io/3jyda_v1
November 12, 2025 at 12:47 PM
Results from study of mental health in 92 countries (n>53,000): People are not doing well.
- U-shape for age is gone: Young adults lowest health, highest illness
- Education still matters (a lot)
- 45% of older people live alone
- Hybrid work > 100% remote or in-person
Preprint: osf.io/3jyda_v1
- U-shape for age is gone: Young adults lowest health, highest illness
- Education still matters (a lot)
- 45% of older people live alone
- Hybrid work > 100% remote or in-person
Preprint: osf.io/3jyda_v1
Reposted by Bastian Jaeger
I hate demand characteristics, but many other pre-registered experiments *have* found the effect.
We discuss in this meta:
online.ucpress.edu/collabra/art...
We discuss in this meta:
online.ucpress.edu/collabra/art...
November 12, 2025 at 6:41 PM
I hate demand characteristics, but many other pre-registered experiments *have* found the effect.
We discuss in this meta:
online.ucpress.edu/collabra/art...
We discuss in this meta:
online.ucpress.edu/collabra/art...
Three preregistered experiments with prolific participants (N = 2,254) found no evidence for experimenter demand effects
osf.io/preprints/ps...
osf.io/preprints/ps...
November 12, 2025 at 1:20 PM
Three preregistered experiments with prolific participants (N = 2,254) found no evidence for experimenter demand effects
osf.io/preprints/ps...
osf.io/preprints/ps...
Reposted by Bastian Jaeger
Prediction: Social psychologists will still insist that the book's thesis is valid, thereby ironically validating its thesis
Ok, just wow. If the content of this article is right, this is depressing. We're slowly reaching the point where ~100% of what I was taught in Social Psych was either innocently wrong or plainly frauded
onlinelibrary.wiley.com/doi/abs/10.1...
onlinelibrary.wiley.com/doi/abs/10.1...
Debunking “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....
onlinelibrary.wiley.com
November 6, 2025 at 4:17 AM
Prediction: Social psychologists will still insist that the book's thesis is valid, thereby ironically validating its thesis
Reposted by Bastian Jaeger
I’ve spent the last 8 years(!) working from the position that HiTOP relies too much on analyses of traditional diagnoses, baking in limitations of the DSM, and that we need to move to symptom-level analyses to fix it
It turns out that rebuilding HiTOP from the ground up doesn’t change much 💀
1/
It turns out that rebuilding HiTOP from the ground up doesn’t change much 💀
1/
November 4, 2025 at 8:27 PM
I’ve spent the last 8 years(!) working from the position that HiTOP relies too much on analyses of traditional diagnoses, baking in limitations of the DSM, and that we need to move to symptom-level analyses to fix it
It turns out that rebuilding HiTOP from the ground up doesn’t change much 💀
1/
It turns out that rebuilding HiTOP from the ground up doesn’t change much 💀
1/
Reposted by Bastian Jaeger
🎉 New paper accepted at JPSP: ASC!
Verena Heidrich, Felicitas Flade & I ask:
When people meet others, which social lens do they use — age, gender, race?
Our paper: “Face the Difference: Meta-contrast as an Affordance to Spontaneous Social Categorization.”
osf.io/preprints/ps...
Verena Heidrich, Felicitas Flade & I ask:
When people meet others, which social lens do they use — age, gender, race?
Our paper: “Face the Difference: Meta-contrast as an Affordance to Spontaneous Social Categorization.”
osf.io/preprints/ps...
OSF
osf.io
November 5, 2025 at 7:01 AM
🎉 New paper accepted at JPSP: ASC!
Verena Heidrich, Felicitas Flade & I ask:
When people meet others, which social lens do they use — age, gender, race?
Our paper: “Face the Difference: Meta-contrast as an Affordance to Spontaneous Social Categorization.”
osf.io/preprints/ps...
Verena Heidrich, Felicitas Flade & I ask:
When people meet others, which social lens do they use — age, gender, race?
Our paper: “Face the Difference: Meta-contrast as an Affordance to Spontaneous Social Categorization.”
osf.io/preprints/ps...
Reposted by Bastian Jaeger
Excellent chimeric face image showing off a left visual field bias for face processing - this image will tend to look more like John Travolta to observers, but the next one (see following post in this thread)... <1/2>
Respond with the same actor as a hero and villain.
November 4, 2025 at 9:18 PM
Excellent chimeric face image showing off a left visual field bias for face processing - this image will tend to look more like John Travolta to observers, but the next one (see following post in this thread)... <1/2>
Reposted by Bastian Jaeger
Just bumping this -- I'll be recruiting a new graduate student this cycle, to start in fall 2026. So will my colleagues Karen Gasper and Reg Adams. I'm currently the area coordinator. Reach out if you have questions about Penn State Social Psychology -- WE ARE!
Although most of my photos right now are of State College autumn, here's Happy Valley from the sky this August. It was awe-inspiring to get this view.
So, come join us here! I'll be recruiting a graduate student to the Empathy & Moral Psychology (EMP) Lab during this cycle, to start in fall 2026.
So, come join us here! I'll be recruiting a graduate student to the Empathy & Moral Psychology (EMP) Lab during this cycle, to start in fall 2026.
November 4, 2025 at 2:38 PM
Just bumping this -- I'll be recruiting a new graduate student this cycle, to start in fall 2026. So will my colleagues Karen Gasper and Reg Adams. I'm currently the area coordinator. Reach out if you have questions about Penn State Social Psychology -- WE ARE!
Reposted by Bastian Jaeger
✈️🥩♻️ How accurately do people perceive the #climate impact of different lifestyles — and how do those perceptions relate to their own behavior and policy preferences?
Our new study investigated exactly this in China, Germany, and the US.🧵
www.sciencedirect.com/science/arti...
Our new study investigated exactly this in China, Germany, and the US.🧵
www.sciencedirect.com/science/arti...
Climate impact perceptions and associations with reported behaviors and policy support in three countries
To accelerate climate change mitigation, substantial lifestyle changes and more ambitious climate policies are urgently needed. However, realizing beh…
www.sciencedirect.com
November 4, 2025 at 2:40 PM
✈️🥩♻️ How accurately do people perceive the #climate impact of different lifestyles — and how do those perceptions relate to their own behavior and policy preferences?
Our new study investigated exactly this in China, Germany, and the US.🧵
www.sciencedirect.com/science/arti...
Our new study investigated exactly this in China, Germany, and the US.🧵
www.sciencedirect.com/science/arti...
🐶New preprint! 🐶 co-led by Ayça Akkuş
w/ @drcharlie.bsky.social & Brock Bastian
We explore cultural and individual differences in the hierarchy of moral concern in a sample of >6500 participants from 41 cultural groups.
osf.io/preprints/ps...
w/ @drcharlie.bsky.social & Brock Bastian
We explore cultural and individual differences in the hierarchy of moral concern in a sample of >6500 participants from 41 cultural groups.
osf.io/preprints/ps...
November 4, 2025 at 1:44 PM
🐶New preprint! 🐶 co-led by Ayça Akkuş
w/ @drcharlie.bsky.social & Brock Bastian
We explore cultural and individual differences in the hierarchy of moral concern in a sample of >6500 participants from 41 cultural groups.
osf.io/preprints/ps...
w/ @drcharlie.bsky.social & Brock Bastian
We explore cultural and individual differences in the hierarchy of moral concern in a sample of >6500 participants from 41 cultural groups.
osf.io/preprints/ps...
Reposted by Bastian Jaeger
The package formerly known as papercheck has changed its name to metacheck! We're checking more than just papers, with functions to assess OSF projects, github repos, and AsPredicted pre-registrations, with more being developed all the time.
scienceverse.github.io/metacheck/
scienceverse.github.io/metacheck/
Check Research Outputs for Best Practices
A modular, extendable system for automatically checking research outputs for best practices using text search, R code, and/or (optional) LLM queries.
scienceverse.github.io
November 3, 2025 at 4:20 PM
The package formerly known as papercheck has changed its name to metacheck! We're checking more than just papers, with functions to assess OSF projects, github repos, and AsPredicted pre-registrations, with more being developed all the time.
scienceverse.github.io/metacheck/
scienceverse.github.io/metacheck/
Reposted by Bastian Jaeger
Prayer's effects on health have been studied many times.
Small studies initially reported some benefit, but more rigorous studies found null or even harmful effects.
In sum, prayer seemed ineffective, recommending focus on more promising interventions: doi.org/10.1002/1465...
Small studies initially reported some benefit, but more rigorous studies found null or even harmful effects.
In sum, prayer seemed ineffective, recommending focus on more promising interventions: doi.org/10.1002/1465...
November 3, 2025 at 12:22 PM
Prayer's effects on health have been studied many times.
Small studies initially reported some benefit, but more rigorous studies found null or even harmful effects.
In sum, prayer seemed ineffective, recommending focus on more promising interventions: doi.org/10.1002/1465...
Small studies initially reported some benefit, but more rigorous studies found null or even harmful effects.
In sum, prayer seemed ineffective, recommending focus on more promising interventions: doi.org/10.1002/1465...
Reposted by Bastian Jaeger
PsyArXiv also recently switched to a pre-moderation workflow due to AI slop (the attached graph shows the 2025 increase caused by a large review backlog due to the moderation switch): blog.psyarxiv.com/2025/08/20/c...
November 3, 2025 at 2:52 PM
PsyArXiv also recently switched to a pre-moderation workflow due to AI slop (the attached graph shows the 2025 increase caused by a large review backlog due to the moderation switch): blog.psyarxiv.com/2025/08/20/c...
Reposted by Bastian Jaeger
New preprint w/ @fbartos.bsky.social , Ben Jones, and @tvpollet.bsky.social .
Our reanalyses found *little* evidence that sexual orientation is associated with 2D:4D ratios after accounting for publication bias. 🧵1/7
osf.io/preprints/ps...
Our reanalyses found *little* evidence that sexual orientation is associated with 2D:4D ratios after accounting for publication bias. 🧵1/7
osf.io/preprints/ps...
November 3, 2025 at 11:53 AM
New preprint w/ @fbartos.bsky.social , Ben Jones, and @tvpollet.bsky.social .
Our reanalyses found *little* evidence that sexual orientation is associated with 2D:4D ratios after accounting for publication bias. 🧵1/7
osf.io/preprints/ps...
Our reanalyses found *little* evidence that sexual orientation is associated with 2D:4D ratios after accounting for publication bias. 🧵1/7
osf.io/preprints/ps...
A self/other asymmetry in the perceived emotional costs of self-reporting good deeds: Participants believed that (1) reporting their own good deeds will leave them feeling worse, and that (2) others will not suffer similar negative feelings.
doi.org/10.1016/j.je...
doi.org/10.1016/j.je...
October 30, 2025 at 3:09 PM
A self/other asymmetry in the perceived emotional costs of self-reporting good deeds: Participants believed that (1) reporting their own good deeds will leave them feeling worse, and that (2) others will not suffer similar negative feelings.
doi.org/10.1016/j.je...
doi.org/10.1016/j.je...
🙂🧠
"At the within-person level, declines in life satisfaction predicted subsequent declines in cognitive function, and vice versa."
(n > 60,000 from multiple countries)
doi.org/10.1037/pspp...
"At the within-person level, declines in life satisfaction predicted subsequent declines in cognitive function, and vice versa."
(n > 60,000 from multiple countries)
doi.org/10.1037/pspp...
October 28, 2025 at 3:05 PM
🙂🧠
"At the within-person level, declines in life satisfaction predicted subsequent declines in cognitive function, and vice versa."
(n > 60,000 from multiple countries)
doi.org/10.1037/pspp...
"At the within-person level, declines in life satisfaction predicted subsequent declines in cognitive function, and vice versa."
(n > 60,000 from multiple countries)
doi.org/10.1037/pspp...
Reposted by Bastian Jaeger
🎉 @rpsychologist.com 's PowerLMM.js is the online statistics application of the year 2025 🎉
powerlmmjs.rpsychologist.com
- Calculate power (etc) for multilevel models
- Examine effects of dropout and other important parameters
- Fast! (Instant results)
powerlmmjs.rpsychologist.com
- Calculate power (etc) for multilevel models
- Examine effects of dropout and other important parameters
- Fast! (Instant results)
October 28, 2025 at 2:37 PM
🎉 @rpsychologist.com 's PowerLMM.js is the online statistics application of the year 2025 🎉
powerlmmjs.rpsychologist.com
- Calculate power (etc) for multilevel models
- Examine effects of dropout and other important parameters
- Fast! (Instant results)
powerlmmjs.rpsychologist.com
- Calculate power (etc) for multilevel models
- Examine effects of dropout and other important parameters
- Fast! (Instant results)
Reposted by Bastian Jaeger
We just started a website highlighting articles that would make good candidates for a Robustness Report.
🌐 Check out the website: www.journalofrobustnessreports.org
📄 Read our first blog post: www.journalofrobustnessreports.org/inaugural-po...
🌐 Check out the website: www.journalofrobustnessreports.org
📄 Read our first blog post: www.journalofrobustnessreports.org/inaugural-po...
Journal of Robustness Reports
The Journal of Robustness Reports The Journal of Robustness Reports (JRR) is a diamond open-access journal that focuses on the reanalysis of high-impact empirical findings. JRR contains collections of...
www.journalofrobustnessreports.org
October 28, 2025 at 10:55 AM
We just started a website highlighting articles that would make good candidates for a Robustness Report.
🌐 Check out the website: www.journalofrobustnessreports.org
📄 Read our first blog post: www.journalofrobustnessreports.org/inaugural-po...
🌐 Check out the website: www.journalofrobustnessreports.org
📄 Read our first blog post: www.journalofrobustnessreports.org/inaugural-po...
Reposted by Bastian Jaeger
In 1850 the weight of all the world's wild mammals equalled the weight of humans and our livestock
Today they are outweighed 1 to 20
Reconfiguring life on this planet to produce cheap meat and dairy
www.nature.com/articles/s41...
Today they are outweighed 1 to 20
Reconfiguring life on this planet to produce cheap meat and dairy
www.nature.com/articles/s41...
October 28, 2025 at 11:53 AM
In 1850 the weight of all the world's wild mammals equalled the weight of humans and our livestock
Today they are outweighed 1 to 20
Reconfiguring life on this planet to produce cheap meat and dairy
www.nature.com/articles/s41...
Today they are outweighed 1 to 20
Reconfiguring life on this planet to produce cheap meat and dairy
www.nature.com/articles/s41...
Reposted by Bastian Jaeger
I am hiring PhD candidates to study the psychology of attention & technology use at @tilburg-university.bsky.social.
We're looking for motivated & curious scholars with expertise in cognitive psychology and statistics, and offer a friendly work environment with great terms & benefits.
tiu.nu/22989
We're looking for motivated & curious scholars with expertise in cognitive psychology and statistics, and offer a friendly work environment with great terms & benefits.
tiu.nu/22989
October 23, 2025 at 3:04 PM
I am hiring PhD candidates to study the psychology of attention & technology use at @tilburg-university.bsky.social.
We're looking for motivated & curious scholars with expertise in cognitive psychology and statistics, and offer a friendly work environment with great terms & benefits.
tiu.nu/22989
We're looking for motivated & curious scholars with expertise in cognitive psychology and statistics, and offer a friendly work environment with great terms & benefits.
tiu.nu/22989
"Overconfidence persists in tournament chess, a real-world information environment that should be inhospitable to it"
journals.sagepub.com/doi/10.1177/...
journals.sagepub.com/doi/10.1177/...
October 23, 2025 at 1:42 PM
"Overconfidence persists in tournament chess, a real-world information environment that should be inhospitable to it"
journals.sagepub.com/doi/10.1177/...
journals.sagepub.com/doi/10.1177/...
Reposted by Bastian Jaeger
How FAIR is shared data in psychology?
We analyzed 11,384 datasets (2013–2024): They're findable, but less reusable!
What relates most to differences in FAIRness? #Repository choice.
👉 Preprint: doi.org/10.23668/psy...
@mariogollwitzer.bsky.social @kaisassenberg.bsky.social #metascience #SciSci
We analyzed 11,384 datasets (2013–2024): They're findable, but less reusable!
What relates most to differences in FAIRness? #Repository choice.
👉 Preprint: doi.org/10.23668/psy...
@mariogollwitzer.bsky.social @kaisassenberg.bsky.social #metascience #SciSci
October 21, 2025 at 5:48 AM
How FAIR is shared data in psychology?
We analyzed 11,384 datasets (2013–2024): They're findable, but less reusable!
What relates most to differences in FAIRness? #Repository choice.
👉 Preprint: doi.org/10.23668/psy...
@mariogollwitzer.bsky.social @kaisassenberg.bsky.social #metascience #SciSci
We analyzed 11,384 datasets (2013–2024): They're findable, but less reusable!
What relates most to differences in FAIRness? #Repository choice.
👉 Preprint: doi.org/10.23668/psy...
@mariogollwitzer.bsky.social @kaisassenberg.bsky.social #metascience #SciSci
Reposted by Bastian Jaeger
Are some people more selective in who they help?
Our new paper w/ Isabel Thielmann says: Yes!!
👉 psycnet.apa.org/doi/10.1037/...
👉 psycnet.apa.org/doi/10.1037/...
APA PsycNet
psycnet.apa.org
October 21, 2025 at 6:59 AM
Are some people more selective in who they help?
Our new paper w/ Isabel Thielmann says: Yes!!
👉 psycnet.apa.org/doi/10.1037/...
👉 psycnet.apa.org/doi/10.1037/...