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Bastian Jaeger

@bxjaeger.bsky.social

Assistant Professor @ Tilburg University 🇳🇱 ❤️🧠Moral Psychology & Altruism 🌚🌝First impressions & Social biases 🔬📊Meta-science

349 Posts976 Follower540 Folgt
Ian Hussey@ianhussey.mmmdata.io · 2d ago

New Jingle assessment: we show that the "Perspective Taking Protocol" has very poor reliability and near-zero convergent validity with other nominal measures of emotional and spatial perspective taking, empathy, and theory of mind. w/ @malte.the100.ci

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PsyArXivBot@psyarxivbot.bsky.social · 5d ago

The RFT Perspective Taking Protocol has very poor reliability and convergent validity with other measures of perspective taking, empathy, and theory of mind: A jingle assessment: https://osf.io/jb6c4

Julia M. Rohrer@dingdingpeng.the100.ci · 6d ago

New blog post! Odds ratios are...a bit weird. Here I explain two problems (interpretation, non-collapsibility) and provide some simple recommendations for improved reporting. www.the100.ci/2026/07/30/r...

Reviewer notes: Odds ratios are really odd

When psychological researchers investigate binary outcomes, they routinely report odds ratios to quantify the strength of an effect or an association. This is quite understandable given that psycholog...

the100.ci

Anne Scheel@annemscheel.bsky.social · 2w ago

New preprint w/ Leo Tiokhin & @lakens.bsky.social! Registered Reports (RRs) are great for science b/c publication is guaranteed before results are known, reducing publication bias & QRPs. This feature supposedly also makes them great for *scientists*. But is that really true? 1/ tinyurl.com/4sy993rr

Career incentives make Registered Reports unattractive under realistic academic conditions

Registered Reports are a publication format designed to reduce publication bias by guaranteeing publication before results are known. This guarantee is considered attractive in the prevailing ‘publish...

tinyurl.com

Ted Schwaba@tedmond.bsky.social · 3w ago

New meta by @peterhaehner.bsky.social et al (I'm a little middle author) on individual differences in personality change across the lifespan (229 studies, N = 230k) 10.1037/bul0000525 Cool finding (imo): For all Big Five, variance in change is greatest in youth, declining through young adulthood!

Individual differences in change for each of the Big Five across ages 0 to 80. The trend for each trait is that individual differences in change are decreasing with age.
Bastian Jaeger@bxjaeger.bsky.social · last mo.

One takeaway from our ongoing meta-analysis of meat reduction interventions: We need higher-quality evidence. We've included 451 effect sizes from 162 studies so far. Only one effect size came from a study with all 5 quality markers shown below. #EASP2026

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Quentin André@quentinandre.bsky.social · last mo.

HBS' latest filing in the Gino lawsuit contains a few new details: 1. A committee of 26 professors, admins, and fellows reviewed the allegations, and *unanimously concluded* that there was *clear and convincing evidence* of research misconduct.

Institute for Replication@i4replication.bsky.social · 2mo ago

1/ Can AI help researchers check whether published social science results actually reproduce? In our new PNAS paper, we tested this directly in the AI Replication Games: 288 researchers, 103 teams, and real replication packages from quantitative social science.

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Matt Grossmann@mattgrossmann.bsky.social · 2mo ago

If you compare people's life satisfaction to their retrospective judgments, it suggests that happiness is not declining. Instead, our expectations are changing with aggregate improvements so our relative satisfaction is rescaled for current circumstances www.sciencedirect.com/science/arti...

Is it possible to raise national happiness?

We revisit the famous Easterlin paradox by considering that life evaluation scales refer to a changing context, hence they are regularly reinterpreted…

sciencedirect.com

Philip N Cohen@philipncohen.com · 3mo ago

Two new facts stand out: 1. 85% of hallucinated citations in preprints are also in the subsequent journal version (thanks, peer review!) 2. Fake cites more likely to use the names of (male) scholars who are already highly cited, creating a fake-citation Matthew effect. arxiv.org/abs/2605.07723

LLM hallucinations in the wild: Large-scale evidence from non-existent citations

Large language models (LLMs) are known to generate plausible but false information across a wide range of contexts, yet the real-world magnitude and consequences of this hallucination problem remain p...

arxiv.org

Nicholas A. Coles, PhD@nicholascoles.bsky.social · 3mo ago

Can gratitude interventions make the world happier? We tested 6 gratitude practices across 34 countries with 10,696 participants to find out — and the answer is more interesting than a simple yes 🧵 www.pnas.org/doi/10.1073/...

A multinational megastudy of the effects of gratitude practices on subjective well-being | PNAS

Scholars have observed people from a variety of cultures using a variety of gratitude-related practices to change their emotions, outlooks, and soc...

pnas.org

Arnaud Tognetti@atognetti.bsky.social · 3mo ago

Disease cues and social avoidance Study how sensory disease cues shape social avoidance 🙅 and immune responses 🩸 using VR 🎮, laboratory experiments, and psychophysiological methods. ⏳ Start: Oct 2026 | ⚠️ Deadline: May 17 📍 CNRS / University of Montpellier 🇫🇷 → emploi.cnrs.fr/Offres/Docto...

Portail Emploi CNRS - Job offer - PhD Position in Behavioral Sciences (Psychology, Behavioral Ecology, and Psychoneuroimmunology): Perception of Disease Cues and Social Avoidance in Humans (M/F)

emploi.cnrs.fr

Dan Quintana@dsquintana.bsky.social · 3mo ago

New preprint: Preregistration is supposed to make research more transparent. But if registry records aren't kept up to date, the transparency benefit erodes. We checked 1,137 psych meta-analyses on PROSPERO and found the records are systematically out of sync with reality osf.io/preprints/ps...

Abstract Meta-analysis preregistration is intended to promote transparency and reduce research waste. However, it is largely unknown whether preregistration records accurately reflect the actual state of research, and how many preregistered meta-analyses are ultimately published in the field of psychology. We searched PROSPERO for preregistrations of psychology meta-analyses registered between 2011 and 2021 (n = 1137), verified publication status through systematic search, and contacted corresponding authors of unpublished registrations (n = 358) to obtain information on reasons for delays and discontinuations. We found that PROSPERO status labels were systematically inaccurate: 57% of records labelled "ongoing" were already published, and publication rates varied by registration status (Completed: 94%; Ongoing: 59%; Discontinued: 9%). Among 80 survey respondents, resource limitations were the primary reasons for project discontinuation (lack of time: 47%; lack of personnel: 11%; lack of funding: 7%) and preregistration quality showed no association with publication likelihood. Altogether, these findings suggest that PROSPERO registrations in psychology frequently fail to reflect the true status of a meta-analysis, undermining their value as a transparency tool, and that resource limitations frequently lead to meta-analysis abandonment. We recommend that journals and funders require registration updates at publication to reduce the accumulation of inaccurate and abandoned records.Figure 1. Overview of PROSPERO preregistrations of meta-analyses in psychology. (a) Number of psychology meta-analysis registrations per year (2011–2025); the dashed line marks the onset of the COVID-19 pandemic. (b) Publication status by year of registration (2011–2021). (c) Publication outcomes by PROSPERO registration status (Dark yellow = unpublished; Blue = published).
Dan Quintana@dsquintana.bsky.social · 3mo ago

So we emailed the authors of all 358 unpublished registrations. 80 wrote responded. The reasons they gave were almost entirely logistical: no time (47%), people leaving the project (11%), no funding (7%). Only one person cited non-significant results as a reason for not publishing.

Reasons for discontinuation among respondents who no longer intend to publish (n = 62; respondents could select multiple reasons)
Joel van der Weele@joelvdweele.bsky.social · 4mo ago

Proud of this paper; five years in the making. Correcting consumer beliefs about carbon impact of meat products (controlling for salience and social norms) does *not* lead to any change in consumption behavior in our setting. Any effects of carbon labels are likely to work through salience/norms.

AERE@aereorg.bsky.social · 4mo ago

📢 Just accepted in #JAERE! 📢 "Correcting Consumer Misperceptions about CO2 Emissions" by Taisuke Imai, Davide D. Pace @ddpace.bsky.social, Peter Schwardmann, and Joel J. van der Weele @joelvdweele.bsky.social. 📎 Read it here: buff.ly/bEoFyEq 📉📈 #EconSky