Lena Hahn
PostDoc | Uni Trier and Leibniz Institute for Psychology @zipd.bsky.social | Research interest: Prefactual thinking, cognitive conflict, and network analysis. All views are my own.
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- Reposted by Lena HahnYou are someone who does quantitative #metascience? Want to do this as a #professor? With a research-focused, tenure-track position in Germany? At a great institute with a super smart and fun team? This one is for you! 🤗
- Reposted by Lena HahnAt ZPID we are searching for a tenure track assistant professor for Psychological Metascience in joint appointment with @unitrier.bsky.social preferably someone who has conducted quantitative research in metascience in psychology or related disciplines. Questions? Feel free to contact me personally.
- Reposted by Lena HahnJob opportunity — Junior Professorship in Psychological Metascience @zpid.bsky.social leibniz-psychology.onlyfy.jobs/job/10kku5n7 h/t @bethclarke.bsky.social
- Reposted by Lena Hahn🧵 New paper alert! People enjoy eating meat but often feel uneasy when being reminded that it comes from animals. To understand how people avoid this conflict, our new study explores how food preparation helps people mentally separate meat from its animal origins. Here’s what we found 👇 1/9
- Reposted by Lena HahnResearchers are often advised to "reveal the person behind the science" in #scicomm to appear more approachable and trustworthy to their audiences. But does this really work? 🤔 In this short piece for Current Opinion in Psych, I review the recent literature... 👇 1/3 doi.org/10.1016/j.co...
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- Reposted by Lena HahnThe deadline for the meeting on counterfactuals is coming up. Don't forget to send in your contribution.
- We're organizing an EASP small group meeting on counterfactuals in March 2026. More details can be found here: www.easp.eu/news/itm/eas...
- Great work by @abitter.bsky.social @mariogollwitzer.bsky.social @kaisassenberg.bsky.social @t-1m.bsky.social et al. on FAIR data sharing in Psychology. They also suggest 6 simple checks that can be implemented in the editorial process to improve data FAIRness.
- 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
- Reposted by Lena HahnWe're organizing an EASP small group meeting on counterfactuals in March 2026. More details can be found here: www.easp.eu/news/itm/eas...
- Reposted by Lena HahnDo you sometimes feel torn when making decisions, like whether to eat unhealthy food or recycle? This is called felt ambivalence: a psychological discomfort from having mixed feelings about something. Check out our new work to know how people resolve such conflicts: doi.org/10.1016/j.je... 🧠💥 1/10
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- Reposted by Lena Hahn🚨 We’re hiring! 🚨 The Social&Environmental Psychology Group @ruhr-uni-bochum.de is recruiting 2 PhDs and 1 Postdoc as part of the ERC-funded SUSCON project on sustainable consumption. Details here: PhDs:👉 jobs.ruhr-uni-bochum.de/jobposting/7... Postdoc:👉 jobs.ruhr-uni-bochum.de/jobposting/e...
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- Reposted by Lena HahnThe full program for the PMGS Meta Research Symposium 2025 is online: docs.google.com/document/d/1... If you are interested in causal inference, systematic review, hypothesis testing, and preregistration, join is October 17th in Eindhoven! Attendance is free!
- Reposted by Lena HahnExcited to announce that my paper with @lpummerer.bsky.social, @sonja-utz.de & @kaisassenberg.bsky.social on conspiracy beliefs is published. We examined the relationship between conspiracy beliefs and procedural justice during the peak and decay of the pandemic.
- How complete are preregistrations? Short answer: 53% include all 6 procedural specifications Medium answer: 🧵 Long answer: check out my publication with A. Glöckner @mariogollwitzer.bsky.social J. Hellmann, J. Lange, S. Schindler & @kaisassenberg.bsky.social doi.org/10.1177/2515...
- We used @zpid.bsky.social PSYNDEX database to sample preregistrations from articles published by psychologists from institutions in German-speaking countries in 2020. We coded 6 procedural specifications (e.g., planned sample size) & 6 transparency elements (e.g., sample size justification)
- 53% of preregistrations included all procedural specifications & 10% all transparency elements. The completeness of preregistration was unrelated to JIF and TOP Factor of the journal in which the preregistered study was published. We discuss how the completeness of preregistrations can be improved.
- Reposted by Lena HahnI’m excited to share my first first-authored paper with @abitter.bsky.social in the Journal of Happiness Studies: “The Emotional Climate of Academia: Exploring Social Media Data as an Indicator of Well‑Being.” 📖 Read it here (OA): link.springer.com/article/10.1...
- Reposted by Lena HahnAm 14. September gibt es in Bochum eine Abendrevue zu Verschwörungserzählungen, die ich mit @pialamberty.bsky.social und @lpummerer.bsky.social gestalte unter Mitwirkung von @tobiasrothmund.bsky.social und sekten-info-nrw.de. Tickets sind begrenzt und unter dem Link bestellbar.
- Reposted by Lena Hahn🚨 Fresh off the press 🚨 Our #TISP spin-off paper on the relationship between #ConspiracyBeliefs and individual #victimhood is now out! doi.org/10.1002/ejsp... 1/8 🧵
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- Reposted by Lena HahnToday, my dear colleague @annameret.bsky.social presented our work on data sharing in psychology at @icssi.bsky.social ✨We show that open data is findable, but less reusable. Preprint coming soon, preregistration available on PsychArchives: doi.org/10.23668/psy... #Metascience #SciSci #ICSSI2025
- Reposted by Lena HahnPCI Psychology is here!! 🎉🥳 After over a year of hard work by so many people, we are thrilled to announce that we are open for submissions! Join us in making publishing more efficient, equitable, and open: psych.peercommunityin.org #PsychSciSky #scipub
- Peer Community in Psychology: A platform for peer review of preprints across psychology: osf.io/m456e
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- Reposted by Lena HahnCall for submissions: Paul Meehl Graduate School Meta Research Symposium 2025! October 17, 2025, at Eindhoven University of Technology Keynotes: Dr. Duygu Uygun-Tunç and Dr. Lisa Spitzer ECR's: Submit your talk before 31st of June! paulmeehlschool.github.io/2025-05-26-p...
- Reposted by Lena Hahn📢 Our colloquium series continues! 🗓 Wednesday, May 21, 2025 🕑 2:00–3:00 PM (CET) 🎙 Dr. Daniel Toribio-Flórez, will speak in English about: "Consequences of conspiracy beliefs for interpersonal relationships" 📍 on-site or online: all details here👉 leibniz-psychology.org/en/products/...
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- Reposted by Lena Hahn📣very thrilled to see the new, open access (!) edition of the Handbook of Social Psychology is now online! With 50 chapters, this is an amazing collective effort brought to everyone by @danielgilbert.bsky.social, Susan Fiske, @elijfinkel.bsky.social, and Wendy Mendes and Situational Press. 👏🎉🙏
- Reposted by Lena HahnSince 1954, "The Handbook of Social Psychology" has been the field’s most authoritative reference work, and today is the launch of the 6th edition with 50 new chapters by 100 leading scholars. Best news? The HSP is now an open-access public resource—free to read, download, and share. the-hsp.com
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- Reposted by Lena HahnDaniel’s visiting us at @zpid.bsky.social next week! 🥳 We’ll stream his talk on conspiracy beliefs and relationships and you’re welcome to join - please reach out to us for the link.
- 📢 Our colloquium series continues! 🗓 Wednesday, May 21, 2025 🕑 2:00–3:00 PM (CET) 🎙 Dr. Daniel Toribio-Flórez, will speak in English about: "Consequences of conspiracy beliefs for interpersonal relationships" 📍 on-site or online: all details here👉 leibniz-psychology.org/en/products/...
- ⏰ Last Chance to Apply! Only 5 Days Left! ⏰ 📅 Apply by: May 18th, 2025
- Job Alert: We are searching for a postdoc (1 fte, 22 months) for a DFG-funded project on bias reduction via cognitive conflicts. Feel free to contact me via e-mail (address provided in the post) or DM. leibniz-psychology.onlyfy.jobs/job/ux0vb9i0
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- Reposted by Lena HahnDie Anmeldung zum SoDoc Workshop 2025 in Chemnitz ist ab sofort möglich: Auf der Website findet ihr alle Infos zu den Teachern und zum Programm des Doktorand:innenworkshops der Fachgruppe Sozialpsychologie in der DGPS. Kommt in die Kulturhauptstadt 2025, wir freuen uns auf euch! @dgps.bsky.social
- Registration for the 2025 SoDoc Workshop is now open: www.tu-chemnitz.de/hsw/psycholo... We would love to welcome you in Chemnitz! #socialpsychology #phd #chemnitz
- Reposted by Lena Hahn🎺COME WORK WITH US @LMU Munich on a new research project: job-portal.lmu.de/jobposting/d.... (postdoc/3 years/full-time). We will develop and evaluate an agile and needs-oriented Research Data Management certificate course for researchers in psychology. Application Deadline: *May 31*
- Reposted by Lena HahnRegistration for the 2025 SoDoc Workshop is now open: www.tu-chemnitz.de/hsw/psycholo... We would love to welcome you in Chemnitz! #socialpsychology #phd #chemnitz
- Reposted by Lena HahnJob Alert: We are searching for a postdoc (1 fte, 22 months) for a DFG-funded project on bias reduction via cognitive conflicts. Feel free to contact me via e-mail (address provided in the post) or DM. leibniz-psychology.onlyfy.jobs/job/ux0vb9i0
- Reposted by Lena Hahn🎺JOB ALERT👀: We (@LMU Munich) are hiring a postdoc (full-term) for the coordination of META-REP, a metascientific research consortium (www.lmu.de/psy/de/forsc...). Application deadline May 15, 2025. See full job ad here: job-portal.lmu.de/jobposting/3.... Contact me if you need more info!
- Reposted by Lena HahnI am hiring a PhD student on the meaningful interpretation of effect sizes as part of my VICI funded project. This is a 4 year paid position in a welcoming and collaborative environment. Find out more or apply at www.tue.nl/werken-bij-t...
- Reposted by Lena HahnAre LLMs impartial moral judges? @sarahmlr.bsky.social doing an excellent job sharing our first results at #MoralMedia25, highlighting that LLMs rate moral violations from ingroup members less severely than the same actions committed by outgroup members.
- Do you perceive meat differently depending on the degree of preparation? Short answer: yes (multilevel modeling), but no distinct underlying mechanisms (network analysis) Medium answer: 🧵 Long answer: check out our new preprint 😊 Project with @benjaminbuttlar.bsky.social & M. Chambon
- A Matter of Preparation: Investigating the Differential Effects of Processing and Cooking on Meat-Related Perceptions and Conflict: doi.org/10.31234/osf.io/ahy…
- Multilevel results show that both processing and cooking reduced empathy. Processing reduced arousal, while cooking reduced felt ambivalence, anger, & disgust. The absence of interaction effects suggests these steps may influence meat perception via distinct mechanisms.
- We used network analysis and network comparison tests to explore the underlying mechanisms. However, the results did not indicate different structures of meat-related perception networks between food preparation steps.
- Reposted by Lena HahnWhat fuels support for the Last Generation & other non-normative collective action? New paper w @lpummerer.bsky.social Lara Ditrich & @kwinter.bsky.social suggests beliefs in a climate-related conspiracy between politicians and industry onlinelibrary.wiley.com/doi/full/10....
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- Reposted by Lena Hahn“War again?” The 35th Meeting of the German Peace Psychology Association takes place in Bremen, Germany, from 20-22 June 2025. Call for applications: www.friedenspsychologie.de?p=1517 Deadline: 22 April 2025 Some travel support available for participants from low & middle-income countries!
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- Reposted by Lena HahnRemember the old #Twitter and when you decided to migrate? How important were your peers for your decision? In our current study, we use data from 250k researchers during the 2022 migration to #Mastodon to examine #socialinfluence within the research community. 👉 doi.org/10.23668/psy... 🧵1/4
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