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Lena Hahn

@lenahahn.bsky.social
398 followers 328 following 33 posts

PostDoc | Uni Trier @unitrier.bsky.social 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 Hahn
Institute for Replication @i4replication.bsky.social · 25/09/2026
Reproducibility depends heavily on where you start. From authors' final analysis data: ✅: 58.2% fully reproducible 🟡: 32.8% partially reproducible ❌: 9.0% not reproducible From raw data: ✅: 28.4% fully reproducible 🟡: 34.3% partially reproducible ❌: 37.3% not reproducible
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Institute for Replication @i4replication.bsky.social · 25/09/2026
Over the past two years, I4R partnered with Psychological Science (@psychscience.bsky.social) on a large reproducibility project. 67 independent teams reproduced 64 articles published in 2024–2025, about 44% of eligible papers. Paper: www.econstor.eu/bitstream/10... Here's what we learned 🧵
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André Bittermann @abitter.bsky.social · 15/09/2026
Reference limits can exacerbate biased citation behavior! In my current commentary article on the work of @kaileylawson.bsky.social, @brettmurpsych.bsky.social, et al. (2025), I provide empirical support for this thesis. Now published #OA @collabrapsychology.bsky.social 👉 doi.org/10.1525/coll...
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André Bittermann @abitter.bsky.social · 08/09/2026
When you apply for an academic position in psych, which criteria should be used to evaluate your work? Make your voice count in our brief survey (6-7min)! 👉https://tinyurl.com/zpid-indicators When you're at #DGPs2026 this week, you can get a free @zpid.bsky.social mug! #ResearchAssessment #CoARA
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Johannes Hartig @johartig.fediscience.org.ap.brid.gy · 09/09/2026
Probably the most memorable takeaway from the podium discussion on academic freedom on the #dgps2026 : Be prepared to resist from day 1! #fckafd #academicfreedom #DGPs2026 #dgps
Discussants sitting on a stage, a projection behind them shows the title "Populist politics as a threat to academic freedom - Where do we stand?" and the congress logo.
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Leibniz-Institut für Psychologie (ZPID) @zpid.bsky.social · 09/09/2026
„Populist politics as a threat to academic freedom - Where do we stand?“ 🙌🏼 So important, to discuss! Currently on the panel: @kaisassenberg.bsky.social @lenahahn.bsky.social @lewan.uk Dieter Frey & G.-Jürgen Hogrefe @dgps.bsky.social #DGPs2026 #zpid @unitrier.bsky.social
Panel beim DGPs Kongress 2026
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Lena Hahn @lenahahn.bsky.social · 01/09/2026
Excited and looking forward to the panel discussion with @kaisassenberg.bsky.social @evalottabrakemeier.bsky.social @rimamrahal.bsky.social @lewan.uk & G.-J. Hogrefe on populist politics as a threat to academic freedom at #DGPs2026 📆Wednesday, 9 September, 🕧1:45PM, 📍 Room Plenary 1 #psychscisky
Populist politics as a threat to academic freedom - Where do we stand? What? Panel discussion, When? Wednesday, 9 September 2026, 1:45-2:45pm, Where? Room Plenary 1 at the 54. DGPs Congress in Luxemburg. Below this information are pictures of Eva-Lotta Brakemeier, G.-Jürgen Hogrefe, Lena Hahn, Stephan Lewandowsky, Rima Maria Rahal and Kai Sassenberg.
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Beth Clarke @bethclarke.bsky.social · 21/08/2026
I’m hiring a PhD student to work with me on metascience in psychology at @zpid.bsky.social! The position is very open - could cover a wide range of topics/themes 🤸🏻‍♀️✨ If you have questions, please reach out! Applications are open until October 1st. leibniz-psychology.onlyfy.jobs/en/job/fyjwt...
leibniz-psychology.onlyfy.jobs
PhD in Psychological Meta-Science (m/f/d)
Become part of the open science movement The Leibniz Institute for Psychology Information (ZPID) in Trier (Germany) is an internationally recognized research-based psychology service center located in...
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Leibniz-Institut für Psychologie (ZPID) @zpid.bsky.social · 17/08/2026
Regarding the changes at the OFS:
Infos of ZPID regarding the changes at the OFS
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Universität Trier @unitrier.bsky.social · 13/07/2026
Immer auf dem Laufenden zur Uni Trier! 💯 Ab sofort findet ihr hier das Bluesky-Startpaket eurer liebsten Hochschule. Alle Profile von Mitarbeitenden und Institutionen auf einen Blick. Wer fehlt noch? Oder ist etwas nicht mehr aktuell? Schreibt einen Kommentar oder eine DM! bsky.app/starter-pack...
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Marlene Altenmüller @marlephie.bsky.social · 04/07/2026
Researchers in moral psych: @sarahmlr.bsky.social is now presenting the newly developed and validated eMFV vignettes at #EASP2026, assessing moral wrongs AND upholdings across different contexts and for all moral foundations. Reach out to her if you’re interested in using the vignettes! 🤓
Sarah Müller presents her newly developed and validated eMFV.
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Marlene Altenmüller @marlephie.bsky.social · 03/07/2026
Closing our day on science reception at #EASP2026 with intense poster discussions! I presented an overview of the ambivalent effects of sharing personal details in scicomm and @kduermeier.bsky.social shared our data revealing scientists’ critical perspectives on Citizen Science. #SciReLab
Marlene and her poster “The people behind the science: Self-disclosure in science communication”Katharina and her poster “A challenge to science? Scientists’ perceptions of participatory science”
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Marlene Altenmüller @marlephie.bsky.social · 03/07/2026
Now @lenazohm.bsky.social shares her research on expert trespassing: people do - at least somewhat - recognize it when scientists transgress the boundaries of their expertise and this might lead to (small) losses of trust. #SciReLab
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Whitney Agunyego @wagunyego.bsky.social · 02/07/2026
Had a great time presenting my current work on epistemic injustice and trust in science at my first #EASP2026. Thanks for all the feedback! Happy to be part of the conference!
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Marlene Altenmüller @marlephie.bsky.social · 01/07/2026
Now at #EASP2026: The symposium organized by @svenjabfrenzel.bsky.social and @kaisassenberg.bsky.social discusses how people high in conspiracy beliefs might be drawn to deviance such as trusting “outlaws” and supporting non-normative action. 👽
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Marlene Altenmüller @marlephie.bsky.social · 01/07/2026
Bringing together psychology of science, computational methods, and social psych to explain how social influence spreads within academic (online) communities: It’s not so much single academic influencers but the community that drives change. Great talk by @abitter.bsky.social at #EASP2026! 🤓
André talks about his research on how researchers switched from X to Mastodon - it wasn’t single “influencers” but the community that drove the change.
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Kai Sassenberg @kaisassenberg.bsky.social · 24/06/2026
@marlephie.bsky.social and I are searching for a postdoc in SciComm research. Feel free to contact us before applying!
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Marlene Altenmüller @marlephie.bsky.social · 24/06/2026
🚨JOB ALERT🚨 3 YEAR POSTDOC in #SciComm research at @zpid.bsky.social! @kaisassenberg.bsky.social and me are searching for a postdoc with background in psychology or communication science. Own research ideas are welcome! Focus should be on societies' preparation for future pandemics. Please share!
leibniz-psychology.onlyfy.jobs
Application Process
Apply now
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Isabel Kreis @ivkreis.bsky.social · 30/05/2026
At #aps26bcn now (10:00): Interested in the interplay between social factors and counterfactual thoughts in the aftermath of trauma? Come check out my brilliant colleague's poster, number 83 :) 👇
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Amanda Kay Montoya @akmontoya.bsky.social · 29/05/2026
Great talk by @lenahahn.bsky.social on how #preregistration compares to the published papers. Evidence of HARKing persists!
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Lena Hahn @lenahahn.bsky.social · 29/05/2026
Come to our symposium with @kaisassenberg.bsky.social and @marlephie.bsky.social on Transparency in the Reseach Cycle at #APS26BCN. Today 🕧12:30PM, 📍 Room 125 (P1 Level, CCIB). #psychscisky
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Lisa Spitzer @lspitzer.bsky.social · 27/05/2026
Join our Mini-Hackathon and help us draft community-driven best-practice guidelines for preregistration!✨ 🗓️ Friday, June 5, 4-6 PM CET 📍 Zoom Register by indicating your interest in participating in the #prereg community events here: forms.gle/yrmK8Wnd4oqw... @zpid.bsky.social @forrt.bsky.social
forms.gle
Best-Practice Guidelines for Psychology
Thank you for your interest in being part of our community project "Best Practices in Psychology"! For more information on the project, please refer back to our website: https://forrt.org/best-practic...
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Lena Hahn @lenahahn.bsky.social · 13/05/2026
Excited and looking forward to the symposium with @kaisassenberg.bsky.social & @marlephie.bsky.social on Transparency in the Research Cycle at #APS26BCN. If you are interested in #openscience and #metasci save the date: 📆Firday, 29 May, 🕧12:30PM, 📍 Room 125 (P1 Level, CCIB) #psychscisky
Picture with tha logo of the conference and pictures of the authors
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Bernhard Pastötter @pastotter.bsky.social · 12/05/2026
You can also follow the organization behind it here: @zpid.bsky.social - ZPID is based at the @unitrier.bsky.social
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Marlene Altenmüller @marlephie.bsky.social · 07/05/2026
Today, @lenahahn.bsky.social and me got to join the opening of the amazing new 🌿FLORA🌾 exhibition in Mainz. Reawakening and reimagining old, medieval plant knowledge via new and innovative media techniques. And right in the middle: our psychological research on art and scicomm. 🤩
Marlene and Lena draw attention to their psych survey on people’s exhibition experiences.Gart der Gesundheit - a medieval herbarium and plant book from 1485.Many new and innovative media installations sharing fresh perspectives on plant knowledge.
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Lisa Spitzer @lspitzer.bsky.social · 06/05/2026
We're launching a project I'm really passionate about at #SIPS2026 Online today: ✨Community-driven & Consensus-based Best Practices for Psychology✨ If you're at SIPS, consider joining! @improvingpsych.org Check out our project website & get involved here: forrt.org/best-practic... #OpenScience
forrt.org
Best-Practice Guidelines for Psychology
A community-led project to develop consensus-based best-practice guidelines for open science in psychology.
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Marlene Altenmüller @marlephie.bsky.social · 30/03/2026
📣 Dear #CitizenScience crowd! 📣 This October (5+6), we are organizing a SYMPOSIUM in collab with @pcstnetwork.bsky.social at the wonderful @mfnberlin.bsky.social in Berlin. We welcome PRACTICAL and RESEARCH perspectives on "Building Knowledge Together: #CitizenScience, #Communication & #Trust".
tu-braunschweig.de
Building Knowledge Together: Citizen Science, Communication, and Trust
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Kai Sassenberg @kaisassenberg.bsky.social · 31/03/2026
How does Nazi propaganda influence the emotions of Germans today? In a registered report in EJSP Lara Ditrich, Katharina Bernecker and I tested the affective consequences of Nazi propaganda pictures shown among pictures of Nazi terror on recipients emotions. onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Vicious Pictures? How National Socialist Propaganda Glorifying Adolf Hitler Affects Contemporary Viewers' Emotions
The atrocities committed during the Nazi era still affect Germany's image in the world and Germans' feelings about their country's past. Herein, we investigate how historical propaganda images glorif...
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Frederic R. Hopp @fhopp.bsky.social · 25/03/2026
Moral psychology flourishes because of our variation in moral values both within and across cultures. I'm happy to see that our registered report protocol for developing and validating the MFQ-2 in German populations is out now! Next up: Data collection and analysis ⚖️ 💻
journals.plos.org
Validation of the moral foundations questionnaire-2 (MFQ-2) in Germany: Psychometric properties and associations with political ideology, religiosity, and personality
Cross-cultural moral psychology requires robust, validated measures. The Moral Foundations Questionnaire-2 (MFQ-2) is a recent revision of the original MFQ that offers improved assessment of moral int...
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Lena Hahn @lenahahn.bsky.social · 25/03/2026
Since April 1st, 2024, cannabis is legal in Germany – no April fool's joke! In our new publication (with @doomed-generation.bsky.social & @kaisassenberg.bsky.social), we ask: What are antecedents of recreational cannabis consumption? 🧵 doi.org/10.1177/0047...
doi.org
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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Kai Sassenberg @kaisassenberg.bsky.social · 19/03/2026
New preprint available: Transparency and open data are important. In contrast to Elson et al. (2026) doi.org/10.31234/osf..., who have called for non-anonymized data in metascience, we argue for a more nuanced approach to prevent unjustified harm for authors of original work doi.org/10.31234/osf...
doi.org
OSF
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Kai Epstude @kaiepstude.bsky.social · 15/03/2026
Looking forward to meeting everyone at the EASP small group meeting on "Counterfactual thinking and its role in cognition and communication" starting later today here in Groningen sites.google.com/rug.nl/count...
sites.google.com
Counterfactual meeting
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Kai Epstude @kaiepstude.bsky.social · 03/03/2026
We're looking for a PhD student working on the (mis)perception of social norms in social networks (in collaboration with Vincent Buskens at Utrecht University). Deadline: April 1, 2026. More information here: socion-program.org/vacancy/phd-...
socion-program.org
PhD position-The (Mis)Perception of Social Norms in Dynamic Social Networks - SOCION
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Lena Hahn @lenahahn.bsky.social · 19/02/2026
How strong is the threat to academic freedom? If you are a publishing psychologist, please help us get a better understanding of the threats due to external pressure and self-censorship in the publication process by taking our 5-10 min anonymous survey: t1p.de/t1qof Results will be shared here!
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Leibniz-Institut für Psychologie (ZPID) @zpid.bsky.social · 19/02/2026
💥 Academic freedom - so important! Please help our research team and take time for their survey:
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Lena Hahn @lenahahn.bsky.social · 19/02/2026
How strong is the threat to academic freedom? If you are a publishing psychologist, please help us get a better understanding of the threats due to external pressure and self-censorship in the publication process by taking our 5-10 min anonymous survey: t1p.de/t1qof Results will be shared here!
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Leibniz-Institut für Psychologie (ZPID) @zpid.bsky.social · 17/02/2026
We are hiring 👉 Postdoctoral Researcher (f/m/d) Would you like to start working at our beautiful institute this coming spring? #psychology #openscience #metascience Find out more here: leibniz-psychology.onlyfy.jobs/job/ylp9kss4
leibniz-psychology.onlyfy.jobs
Postdoctoral Researcher (f/m/d)
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Marlene Altenmüller @marlephie.bsky.social · 16/02/2026
Also calling on a couple of feeds - thanks to all who already participated! 😊 #socialpsyc #psycsci #psychscisky #psychologie #academicsky #OpenSci #PhDSky
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Marlene Altenmüller @marlephie.bsky.social · 11/02/2026
Dear colleagues - we want to better understand perceptions of data fraud and its detection and need your support! Are you currently a #researcher in #psych (or related fields) working with #data? Perfect - please respond to & share this short study (7min): sosci.rlp.net/detection/?r... Thank you!! 🫶
sosci.rlp.net
Fragebogen | Seite 1
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Marlene Altenmüller @marlephie.bsky.social · 05/01/2026
🚨 Deadline tomorrow! 🚨
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Marlene Altenmüller @marlephie.bsky.social · 26/11/2025
You 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! 🤗
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Kai Sassenberg @kaisassenberg.bsky.social · 26/11/2025
At 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.
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Tom Hardwicke @tomhardwicke.bsky.social · 26/11/2025
Job opportunity — Junior Professorship in Psychological Metascience @zpid.bsky.social leibniz-psychology.onlyfy.jobs/job/10kku5n7 h/t @bethclarke.bsky.social
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Benjamin Buttlar @benjaminbuttlar.bsky.social · 11/11/2025
🧵 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
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Marlene Altenmüller @marlephie.bsky.social · 03/11/2025
Researchers 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...
doi.org
Redirecting
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Kai Sassenberg @kaisassenberg.bsky.social · 21/10/2025
In a new preprint led by @abitter.bsky.social we tested whether open data is useful for reproducibility and usage based on automated and human assessment of data FAIRness. The short answer is: in the majority of cases not really. For more information 👇
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Kai Epstude @kaiepstude.bsky.social · 21/10/2025
The deadline for the meeting on counterfactuals is coming up. Don't forget to send in your contribution.
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Lena Hahn @lenahahn.bsky.social · 21/10/2025
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.
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Kai Epstude @kaiepstude.bsky.social · 24/09/2025
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...
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Benjamin Buttlar @benjaminbuttlar.bsky.social · 01/09/2025
Do 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
doi.org
Redirecting
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