Are you using survey-style questionnaires designed for humans to measure characteristics of LLMs? In our #EACL2026 paper, we evaluate both the reliability and validity of such tests and found that their scores do not reflect real-world model behavior. In fact, they can be deceptive! 🧵1/3
Jana Jung
@janajung.bsky.social
PhD student in Social Data Science @ University of Mannheim | jasoju.github.io
🚨New paper alert🚨 🤔 Ever wondered how the way you write a persona prompt affects how well an LLM simulates people? In our #EMNLP2025 paper, we find that using interview-style persona prompts makes LLM social simulations less biased and more aligned with human opinions. 🧵1/7
Thrilled to talk about how seemingly small decisions in silicon sampling can have a large impact on simulated survey responses 👀 Join us on Oct 29th! 👈
🚨 Upcoming #CS3Meeting 🚨 @wanlo.bsky.social talks about analytic flexibility in silicon samples on October 29, 3:15 to 4:00 PM CET). Great opportunity to gain novel insights into how survey responses can be generated with #LLMs. Sign up now: ww3.unipark.de/uc/cs3_meeti...
👋 #ACL2025NLP 🇦🇹 @marlutz.bsky.social and I are presenting our poster on demographic representativeness of LLMs today! 🕦 10:30-12:00 📍 Hall X5 (board 1 or 14 according to different sources 🧐) Here’s the paper on ACL anthology: aclanthology.org/2025.finding... Drop by!
Missing the Margins: A Systematic Literature Review on the Demographic Representativeness of LLMs
Indira Sen, Marlene Lutz, Elisa Rogers, David Garcia, Markus Strohmaier. Findings of the Association for Computational Linguistics: ACL 2025. 2025.
aclanthology.org
Do LLMs represent the people they're supposed simulate or provide personalized assistance to? We review the current literature in our #ACL2025 Findings paper and investigating what researchers conclude about the demographic representativeness of LLMs: osf.io/preprints/so... 1/
Chair for Data Science in the Economic and Social Sciences at University of Mannheim having lots of fun at #ic2s2 @janajung.bsky.social @wanlo.bsky.social @indiiigo.bsky.social @jrupprec.bsky.social @maximiliankreutner.bsky.social and Stefano Balietti
Poster Session 1 is live in the Atrium! Explore the work and cast your daily vote—just scan the QR code to submit your favorite poster ID. Everyone has one vote per day. #ic2s2
LLMs can generate synthetic survey responses, e.g. for imputation, but how reliable are they? 📋 At #IC2S2, I'll be sharing our research on the robustness of AI-generated responses to perturbations and if they mirror human survey biases. 🤖 Come by my poster on Tuesday between 1:30 and 3:30 p.m.
Really excited to also present this work at #IC2S2 next week in Norrköping! 🎉 I'd love to discuss how to produce LLM survey responses at my poster on Wed at 13:30 (Poster Session 2, Poster ID 68) 📊
LLMs are trained to produce open-ended responses 📝, but most survey items require closed-ended responses instead 📊 This Wed 11:00–12:30 at #ESRA25, I'll discuss the large impact that Answer Production Methods have on prediction results + share recommendations for methods and parameters. 👈
Very excited to head to #IC2S2 next week! 🎉 In our project, we tested whether a psychological assessment can measure sexism in LLMs, and found that applying such tools to LLMs is not as straightforward as it seems. Find me and my poster at Poster Session 1 (Tue 12:30-14:30) — hope to see you there