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Jan Feld

@econfeld

Economist interested in meta-science and open science. https://janfeld.weebly.com/

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21.11.2023
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Latest posts by Jan Feld @econfeld

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No Evidence That Siblings’ Gender Affects Personality Across Nine Countries - Thomas Dudek, Anne Ardila Brenøe, Jan Feld, Julia M. Rohrer, 2022 Does growing up with a sister rather than a brother affect personality? In this article, we provide a comprehensive analysis of the effects of siblings’ gender ...

No Evidence That Siblings’ Gender Affects Personality Across Nine Countries

journals.sagepub.com/doi/full/10....

05.03.2026 07:47 👍 0 🔁 0 💬 0 📌 0
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.

📣Help needed! We are trying to reach people outside Europe with our short survey on research graphs! Could you share the link with someone? Take the survey yourself? Thanks in advance!! 🙏🌷🙏 (Europeans still welcome, of course!) supsy.eu.qualtrics.com/jfe/form/SV_...

13.01.2026 18:38 👍 5 🔁 8 💬 1 📌 1
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.

❗ Help needed ❗ Please take our 5-minute survey about interpreting research graphs 📈 And please help us share this post with lots of people 🤗

Take the survey here: supsy.eu.qualtrics.com/jfe/form/SV_...

Thank you!!

28.12.2025 17:13 👍 20 🔁 26 💬 0 📌 1

You can do this right now:

Think of a person who wrote a paper you love, whose work influenced or helped you, or has made your professional life better.

Search up their email address. Shoot them a quick email of thanks. It means so, so much. This is a rough time of year, share some joy.

11.12.2025 22:08 👍 703 🔁 259 💬 13 📌 36

I used to think that people use the “weasel word causal inference strategy” (“our analyses show that X is an important predictor of…” followed by conclusions that are clearly causal) for the sake of plausible deniability. But I’m revising that now, because often deniability *isn’t* plausible.>

07.12.2025 09:54 👍 43 🔁 6 💬 2 📌 0

I've been working on a new tool, Refine, to make scholars more productive. If you're interested in being among the very first to try the beta, please read on.

Refine leverages the best current AI models to draw your attention to potential errors and clarity issues in research paper drafts.

1/

24.07.2025 03:24 👍 320 🔁 88 💬 28 📌 22

🚨I4R is looking to hire postdoc fellows in public health and computer science!

The postdoc will join a team of researchers and help mass reproduce studies in leading public health journals or develop AI replicator agents.

Info 👇

30.09.2025 18:18 👍 17 🔁 18 💬 1 📌 2

happy 3²/4²/5² to ask those who celebrate

16.09.2025 15:17 👍 570 🔁 244 💬 11 📌 16
Institute For Replication

Teams are matched by expertise and pick from a curated list of top-journal studies. Learn more about the Institute for Replication: i4replication.org

09.09.2025 03:04 👍 0 🔁 0 💬 0 📌 0
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Victoria University of Wellington Replication Games Take this survey powered by surveymonkey.com. Create your own surveys for free.

Wellington Replication Games — Dec 4, 2025
One-day team challenge to reproduce top social-science studies; co-authorship on a meta-paper; virtual welcome. Researchers, postdocs, PhDs — sign up: www.surveymonkey.ca/r/RB6K73Q
#OpenScience #Metascience @i4replication.bsky.social

09.09.2025 03:04 👍 8 🔁 2 💬 1 📌 0
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Hey #EAAE2025: Thursday is replication day. First, Anna Dreber's keynote on "Predicting Replication Outcomes" (11am) & our session👇(4pm) feat. ‪@robertfinger.bsky.social‬ @cedricchambru.bsky.social‬ @jensrommel.bsky.social‬ ‪@beta1hat.bsky.social‬ @mabuchner.bsky.social‬ ‪@i4replication.bsky.social‬

26.08.2025 13:21 👍 18 🔁 7 💬 0 📌 1
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Good to see growing support for abduction or 'inference to the best explanation', recently by Spirling and Stewart in @thejop.bsky.social. This is...

www.journals.uchicago.edu/doi/full/10....

21.08.2025 19:35 👍 97 🔁 22 💬 7 📌 3
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Peer reviewers more likely to approve articles that cite their own work Preprint examines how citations can influence the review process.

Reviewers are more likely to approve manuscripts if authors agree to cite their work than those who don't get cited.
Thanks to @aidybarnett.bsky.social, @balazsaczel.bsky.social and @econfeld.bsky.social for chatting with me for this story!

www.nature.com/articles/d41...

22.08.2025 05:08 👍 8 🔁 7 💬 0 📌 1
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Happy 15th anniversary, Retraction Watch Once upon a time, a long time ago, two science journalists had an idea for a blog about retractions. And on Aug. 3, 2010, Retraction Watch launched, detailing in the first post why retractions matt…

Once upon a time, two science journalists had an idea for a blog about retractions. And on Aug. 3, 2010, Retraction Watch launched.

And now, 15 years and 6,700 posts later, that work seems more important than ever.

Happy 15th anniversary, Retraction Watch.

01.08.2025 20:38 👍 248 🔁 85 💬 6 📌 5

Interesting read, but worth considering (as the article does) the selection bias introduced by a) who is willing to initiate an adversarial collaboration and b) who manages to compete and publish it.

08.08.2025 09:50 👍 11 🔁 3 💬 1 📌 0
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Call for Papers: Special Issue on the Science of Scaling We are excited to announce a special issue dedicated to the “Science of Scaling†in the Journal of Political Economy: Microeconomics. This special issue aims to advance rigorous, interdisciplinary

Our special issue seeks to foster novel theoretical and empirical papers that treat scaling as an object of study in its own right—exploring its methodological foundations, economic incentives, institutional challenges, and pathways to impact. Please spread the word! ideas.repec.org/p/feb/artefa...

05.08.2025 17:51 👍 8 🔁 4 💬 0 📌 0

Today, scaling has evolved far beyond its origins as a mere objective. It now represents a rich domain for scientific inquiry, demanding contributions from economics and allied disciplines. As such, I am excited to announce a special issue on scaling at the JPE-Micro!

05.08.2025 17:51 👍 7 🔁 3 💬 1 📌 0
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The call for proposals is now up for our long awaited #AIMOS2025 conference in Sydney this November:
aimos-inc.github.io/aimos.confer...

01.08.2025 00:28 👍 18 🔁 15 💬 1 📌 2

You can read the full paper here:
www.ifo.de/DocDL/cesifo...

Shan, Zölitz & Backes-Gellner (2025). "Disconnecting Women: Gender Disparities in the Impact of Online Instruction" CESifo Working Paper #11997.

31.07.2025 17:55 👍 0 🔁 1 💬 0 📌 0
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🚨 New working paper! 🚨
We ran a field experiment with >1,300 university students randomly assigned to online vs in-person lectures. What happens? Online instruction hurts performance, but only for women♀️📉

with Xiaoyue Shan & Uschi Backes-Gellner
www.ifo.de/DocDL/cesifo...

31.07.2025 17:55 👍 22 🔁 8 💬 1 📌 2

And if you are working in or interested in metaresearch in Australia, we'd love to hear from you! Fill out this brief @aimosinc.bsky.social @ausrepro.bsky.social survey so we can connect like-minded researchers. qualtrics.flinders.edu.au/jfe/form/SV_... 3/3

27.07.2025 02:17 👍 3 🔁 5 💬 0 📌 0
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Join us @rwi.bsky.social & @i4replication.bsky.social as replicator for a meta-reproduction on deforestation. We pay replicators 2,500 EUR. Experience with geocoded data & background in environmental science are assets. 1/2 bit.ly/4ke2p6o

29.06.2025 11:00 👍 13 🔁 14 💬 1 📌 1

where can I find those slides?

20.06.2025 23:20 👍 0 🔁 0 💬 1 📌 0
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2025 Labour Econometrics Workshop The Melbourne Institute is proud to present the 27th Labour Econometrics Workshop.

Don't forget to submit your papers to the Labour Econometrics Workshop! The deadline is in two weeks ✌️

Hope to see you in Melbourne! 🌈🏙️

melbourneinstitute.unimelb.edu.au/conferences/...

01.05.2025 00:56 👍 11 🔁 11 💬 0 📌 3
The Sources of Researcher Variation in Economics We use a rigorous three-stage many-analysts design to assess how different researcher decisions—specifically data cleaning, research design, and the interpretat

After a long wait, the working paper for the Many-Economists Project: The Sources of Researcher Variation in Economics. We had 146 teams perform the same research three times, each time with less freedom. What source of freedom leads to different choices and results? papers.ssrn.com/sol3/papers....

25.02.2025 19:17 👍 347 🔁 161 💬 12 📌 41
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New research alert! Our study investigates the effectiveness of human-only, AI-assisted, and AI-led teams in assessing the reproducibility of quantitative social science research. We've got some surprising findings!

22.01.2025 02:22 👍 102 🔁 48 💬 3 📌 20

Another R&R with @nsalamanca.bsky.social @econfeld.bsky.social and @ulfzoelitz.bsky.social

What a week!!!!! 🥳🥳🥳🥳🥳🥳

12.12.2024 23:13 👍 28 🔁 2 💬 1 📌 0

Now back home to New Zealand 🇳🇿 – excited for the summer weather ahead

12.12.2024 14:27 👍 0 🔁 0 💬 0 📌 0

What an incredible 6 months at @iza.org – for me and my family!

I’m so thankful for:

🤝 The kind and insightful IZA team who made us feel at home
📚 Inspiring workshops, conferences, and seminars
🌊 A stunning location next to the Rhein, with easy access to other research hubs

Thank you, IZA!

12.12.2024 14:27 👍 11 🔁 1 💬 1 📌 0