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MZES Social Science Data Lab

@mzes-ssdl.bsky.social
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MZES Social Science Data Lab. An event series for data and methods in the social sciences. Check out our tutorials on our blog Methods Bites: socialsciencedatalab.mzes.uni-mannh…

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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 16/09/2026
🕑 Join us *today* at 13:45 CEST for the talk 'Harnessing GPT for Enhanced Academic Writing: Evidence from a Field Experiment with Early-Career Researchers in the Social Sciences' by Marc Ratkovic (University of Mannheim) ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 09/09/2026
🚨 Upcoming: "Harnessing GPT for Enhanced Academic Writing: Evidence from a Field Experiment with Early-Career Researchers in the Social Sciences" 👤 Marc Ratkovic (University of Mannheim) 🗓️ Wed, September 16, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi...
2026-09-16 | Input talk | Marc Ratkovic (University of Mannheim)
Harnessing GPT for Enhanced Academic Writing: Evidence from a Field Experiment with Early-Career Researchers in the Social Sciences
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Hybrid event [A5, 6, Room A231 + Zoom]
September 16, 2026, 13:45-15:15

Abstract
Large Language Models (LLMs) bring both risk and opportunity to scholarly communication, yet their effects on expert-level research remain untested. We conducted the first randomized controlled trial of GPT-4 in expert academic writing, implemented as a three-day hackathon (n=22 early-career social scientists) in collaboration with Springer Nature. Participants were randomized to unrestricted GPT access or a no-AI control. Manuscripts were evaluated pre-and post-intervention by expert faculty and postdoctoral researchers on six dimensions: clarity, coherence, originality, methodological rigor, depth of analysis, and literature relevance. AI assistance produced significant improvements in clarity (Δ=+0.49, p=0.009) and coherence (Δ=+0.43, p=0.036) without affecting other dimensions. Principal-components analysis confirmed AI's selective enhancement of organizational features. SakanaAI, a GPT-based reviewer, aligned broadly with human assessments. A linguistic analysis of participants' reflective journals revealed increased process-oriented language and reduced temporal references, suggesting a reallocation of cognitive resources. Although concerns about overreliance and academic integrity persist, our findings imply that delegating routine structuring tasks to AI can free scholars to focus on generating novel insights.

Presenter(s)
Marc Ratkovic is Professor of Political Science and Social Data Science at the University of Mannheim and Co-Founder and Co-Director of the Global Responsible Tech Lab. Previously at Princeton University, his research spans political methodology, causal inference, and machine learning and has appeared in leading journals in political science and statistics.
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 08/09/2026
▶️ Social Science Data Lab: Fall 2026 Events Four input talks by great researchers (see below ⤵️)! 🗓️ Details & Zoom: socialsciencedatalab.mzes.uni-mannheim.de/page/events/ 👥 Organizers: @rubac.bsky.social, @denis-cohen.bsky.social, Nadia Granato and Alexander Wenz
Upcoming
2026-12-02 | Workshop | Johannes B. Gruber (GESIS – Leibniz-Institut für Sozialwissenschaften)
Vibe, Check: Authoring R Packages for Open Science in 2026 with usethis, devtools, and Coding Agents
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2026-11-04 | Input talk | Anne-Kahtrin Stroppe (University of Greifswald)
Measuring Infrastructural Deprivation from Big Geodata: On the Inferential Validity of OpenStreetMap Proxies
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2026-10-14 | Input talk | Valentyn Melnychuk (LMU Munich)
Causal ML for treatment effect estimation
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2026-09-16 | Input talk | Marc Ratkovic (University of Mannheim)
Harnessing GPT for Enhanced Academic Writing: Evidence from a Field Experiment with Early-Career Researchers in the Social Sciences
more
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 01/07/2026
🚨 Content alert 🚨 New recording and workshop materials published! ➡️ AIn't Nothing But a Survey? Using Large Language Models for Coding Open-Ended Survey Responses 👤 Leah von der Heyde (GESIS) 📺 youtu.be/lXfVg8ESkXk 🗒️ github.com/SocialScienc...
youtu.be
AIn't Nothing But a Survey? Using Large Language Models for Coding Open-Ended Survey Responses
YouTube video by MZES Methods Bites
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 22/04/2026
🕑 Join us *today* at 13:45 CEST for the talk 'AIn't Nothing But a Survey? Using Large Language Models for Coding Open-Ended Survey Responses' by Leah von der Heyde (GESIS) ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 14/04/2026
🆕 Content alert on Methods Bites ▶️ "Survey Recruitment on LinkedIn: A Step-by-Step Guide to Targeted Outreach" 👤 Zaza Zindel (DeZIM) & Lisa de Vries (FernUniversität Hagen) 🔗 Blogpost: socialsciencedatalab.mzes.uni-mannheim.de/article/link...

Survey Recruitment on LinkedIn: A Step-by-Step Guide to Targeted Outreach
March 25, 2026 31 min read tutorials [Zaza Zindel Lisa de Vries]

LinkedIn’s professional user base and precise targeting capabilities present social science researchers with a valuable opportunity to recruit survey participants from highly specific populations, particularly those relevant to research on employment and industry dynamics. While platforms such as Facebook and Instagram are commonly used for recruitment of survey participants, LinkedIn’s potential in survey participant recruitment remains underutilized. Its professional focus, career-centric context, and only minimal off-topic content make it ideal for reaching the potential labor force population. This is particularly relevant for studies requiring insights from specific industries, occupations, or education levels. In this Methods Bites Tutorial, Dr. Zaza Zindel (German Centre for Integration and Migration Research (DeZIM)) and Dr. Lisa de Vries (FernUniversität in Hagen) provide a step-by-step guide on how to use LinkedIn ads to recruit participants for survey research.
Continue reading
Social media Survey data Data collection
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 14/04/2026
🚨 Upcoming: "AIn't Nothing But a Survey? Using Large Language Models for Coding Open-Ended Survey Responses" 👤 Leah von der Heyde (GESIS) 🗓️ Wed, April 22, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi... 🔗 socialsciencedatalab.mzes.uni-mannheim.de/page/events/
2026-04-22 | Input talk | Leah von der Heyde (GESIS)
AIn't Nothing But a Survey? Using Large Language Models for Coding Open-Ended Survey Responses

Hybrid event [A5, 6, Room A231 + Zoom]
April 22, 2026, 13:45-15:15

Abstract
Large language models (LLMs) have the potential to make survey research more efficient, including the classification of open-ended survey responses. However, as most existing research on this topic has focused on English-language text or single LLMs, it is unclear whether their applicability generalizes and how the quality of classifications compares to established methods. In this talk, I will demonstrate how LLMs can be used for coding open-ended responses using different access options and prompting and fine-tuning techniques. I will present a study testing these approaches on a dataset of German open-ended survey responses, comparing several LLMs to human coders and other automated methods. Finally, I will discuss the implications of the study findings for practitioners, including the many trade-offs researchers need to consider.

Presenter(s)
Leah von der Heyde is a computational social scientist and survey methodologist. Her research focuses on the potential and pitfalls of new data sources, such as large language models, for improving the measurement and representation of public opinion. Substantively, she is particularly interested in political attitudes and voting behavior. Leah received her PhD in Social Data Science and Research Methodology from the University of Mannheim. She has a background in political science from LMU Munich, the University of Mannheim, and Georgetown University. Previously, Leah was part of the Social Data Science and AI Lab at LMU Munich, worked for the European Social Survey at GESIS - Leibniz Institute for the Social Sciences, the European Parliamentary Research Service, and several market and public opinion research institutes in Germany and Sweden. At GESIS, she is part of KODAQS, researching and educating…
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 14/04/2026
🚨 Content alert 🚨 New recording and workshop materials published! ➡️ Politics in Action: Studying Multimodal Data from Local Meetings to National Parliaments 👤 @ankuepfer.bsky.social (TU Darmstadt & University of Birmingham) 📺 youtu.be/hdhVq5bWi2k 🗒️ github.com/SocialScienc...
youtu.be
Politics in Action: Studying Multimodal Data from Local Meetings to National Parliaments
YouTube video by MZES Methods Bites
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 11/03/2026
🕑 Join us *today* at 13:45 CEST for the talk 'Politics in Action: Studying Multimodal Data from Local Meetings to National Parliaments' by @ankuepfer.bsky.social (TU Darmstadt & University of Birmingham) ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 05/03/2026
🚨 Content alert 🚨 New recording and workshop materials published! ➡️ When Events Change Samples: Disentangling Causal Effects from Compositional Bias in Quasi-Experimental Designs 👤 @klaramueller.bsky.social (Uni Mannheim) 📺 youtu.be/kYdDGgaI95w 🗒️ github.com/SocialScienc...
youtu.be
Disentangling Causal Effects from Compositional Bias in Quasi-Experimental Designs
YouTube video by MZES Methods Bites
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 03/03/2026
🚨 Upcoming: "Politics in Action: Studying Multimodal Data from Local Meetings to National Parliaments" 👤 @ankuepfer.bsky.social (TU Darmstadt & University of Birmingham) 🗓️ Wed, March 11, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi...
2026-03-11 | Input talk | Andreas Küpfer (TU Darmstadt & University of Birmingham)
Politics in Action: Studying Multimodal Data from Local Meetings to National Parliaments

Hybrid event [A5, 6, Room A231 + Zoom]
März 11, 2026, 13:45-15:15

Abstract
The analysis of multimodal political communication enables political scientists to study how politicians and parties behave in previously untapped ways. While large volumes of audiovisual data are increasingly available, these data are typically unstructured and vary substantially in quality, requiring robust and carefully designed processing pipelines. This talk guides through the challenges and opportunities of analysing political video data across institutional contexts. Analysing videos from local political meetings, including US school boards and state supreme courts, allows the generation of features such as transcriptions, gendered speech shares, and agenda items. However, the often semi-professional production quality of such recordings limits the systematic use of visual information. By contrast, legislative debate recordings are typically standardised and post-edited, enabling the leverage of visual features such as eye contact seeking to study the emergence of dominant behaviour during parliamentary speech. Scaling multimodal processing and feature extraction workflows across heterogeneous institutional contexts is, therefore, crucial. It enables the systematic study of political communication across levels of government and over longer time periods.

Presenter
Andreas Küpfer is a Postdoctoral Researcher in the DFG-funded project "Analysing Legislative Politics with Aligned Text, Audio and Image Data" at the Institute for Political Science of the Technical University of Darmstadt, holding a Ph.D. in Political Science from the University of Mannheim. He works at the intersection of Data Science and Political Science. His research focuses on (multimodal) political communication, combining computational with tradi…
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 25/02/2026
🕑 Join us *today* at 13:45 CEST for the talk 'When Events Change Samples: Disentangling Causal Effects from Compositional Bias in Quasi-Experimental Designs' by @klaramueller.bsky.social (University of Mannheim) ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 18/02/2026
🚨 Upcoming: "When Events Change Samples: Disentangling Causal Effects from Compositional Bias in Quasi-Experimental Designs" 👤 Klara Müller (University of Mannheim) 🗓️ Wed, February 25, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi...
2026-02-25 | Input talk | Klara Müller (University of Mannheim)
When Events Change Samples: Disentangling Causal Effects from Compositional Bias in Quasi-Experimental Designs

Hybrid event [A5, 6, Room A231 + Zoom]
Februar 25, 2026, 13:45-15:15

Abstract

From political psychology, we know that salient political events can shape political attitudes and behavior. In studying such event effects, quasi-experimental designs, such as the unexpected event during survey design (UESD), have become increasingly popular. To allow for causal identification, these designs rest on quite strict assumptions, one of which is the random assignment of respondents to the pre- and post-event sample and the comparability of these samples. From survey methodology, however, we also know that external events can affect who responds to surveys. If event-triggered shifts in survey participation and sample composition are related to outcome variables of interest, causal estimates of an event’s effect may be biased. This problem is particularly challenging when compositional shifts involve unobserved or even unobservable factors. In this talk, I provide intuition for how such compositional bias can threaten causal conclusions in quasi-experimental settings. I present a framework to disentangle an event’s “true” causal effect from compositional bias, with a particular focus on the UESD approach. The framework outlines practical strategies to adjust for observable imbalances and extends sensitivity analyses to assess how strong unobserved confounders would have to be to change or undermine substantive causal conclusions. I illustrate the approach using the rally-around-the-flag effect following the 2015 Charlie Hebdo attacks in France, as well as replications of published UESD studies on terrorist events and rally-style outcomes. By addressing both observable and unobservable sources of bias, this framework enhances causal inference and strengthens the credibility of public opinion research in d…
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 09/02/2026
▶️ Social Science Data Lab: Spring 2026 Events Four input talks by great researchers (see below ⤵️)! 🗓️ Details & Zoom: socialsciencedatalab.mzes.uni-mannheim.de/page/events/ 👥 Organizers: @rubac.bsky.social, @denis-cohen.bsky.social and Alexander Wenz
Upcoming

2026-05-13 | Input talk | Lion Behrens (Data Scientist & Independent Researcher)
Modeling Causal Heterogeneity with Machine Learning
more

2026-04-22 | Input talk | Leah von der Heyde (GESIS)
AIn't Nothing But a Survey? Using Large Language Models for Coding Open-Ended Survey Responses
more

2026-03-11 | Input talk | Andreas Küpfer (TU Darmstadt & University of Birmingham)
Politics in Action: Studying Multimodal Data from Local Meetings to National Parliaments
more

2026-02-25 | Input talk | Klara Müller (University of Mannheim)
When Events Change Samples: Disentangling Causal Effects from Compositional Bias in Quasi-Experimental Designs
more
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 16/12/2025
🚨 Content alert 🚨 New recording published! ➡️Brave New Data Access World: What the Digital Services Act (DSA) Means for Researcher Access to Digital Platforms 👤 @dscheykopp.bsky.social (Weizenbaum Institute Berlin) 📺 youtu.be/8gf2mjIs5j8
youtu.be
What the Digital Services Act (DSA) Means for Researcher Access to Digital Platforms
YouTube video by MZES Methods Bites
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 03/12/2025
🕑 Join us *today* at 13:45 CEST for the talk 'Brave New Data Access World: What the Digital Services Act (DSA) Means for Researcher Access to Digital Platforms' by @dscheykopp.bsky.social (Weizenbaum Institute Berlin) ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 26/11/2025
🚨 Upcoming: "Brave New Data Access World: What the Digital Services Act (DSA) Means for Researcher Access to Digital Platforms" 👤 @dscheykopp.bsky.social (Weizenbaum Institute Berlin) 🗓️ Wed, December 3, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi...
Brave New Data Access World: What the Digital Services Act (DSA) Means for Researcher Access to Digital Platforms

Hybrid event [A5, 6, Room A231 + Zoom]
Dezember 03, 2025, 13:45-15:15

Abstract
The European Union’s Digital Services Act (DSA) marks a turning point for the study of digital platforms by establishing a legal framework for researcher access to platform data, including from major social media companies. Article 40 of the DSA outlines how researchers can request such access, opening unprecedented possibilities for empirical investigations into the digital public sphere. Yet, the practical implementation of this right to data access raises important challenges. Questions of eligibility, the scope of accessible data, and the ethical and technical standards required for secure processing are central to understanding what this new regime will mean in practice. This talk provides an overview of the DSA’s data-access provisions, explains their relevance for the research community, and discusses what opportunities—and limitations—emerge for studying systemic risks, algorithmic effects, and platform governance. It reflects on early experiences with Article 40 implementation and considers what it will take to build a sustainable infrastructure for independent, policy-relevant research on digital platforms in Europe.

Presenter
Jakob Ohme leads the interdisciplinary "Digital News Dynamics" research group at the Weizenbaum Institute in Berlin, exploring the impact and dissemination of professional journalism on digital platforms versus other sources like influencers or AI. His work emphasizes the changes digital and mobile communications bring to news consumption and political engagement, particularly across different generations. Jakob Ohme is dedicated to advancing digital methodologies in political communication and journalism research, notably through the innovative use of digital trace data. He's also a Co-Principal Investigator in the #DSA40 Collaboratory, foc…
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 06/11/2025
🚨 Content alert 🚨 New recording and workshop materials published! ➡️ Large Language Models for Social Research: Potentials and Challenges 👤 @indiiigo.bsky.social (University of Mannheim) 📺 youtu.be/p5wPJHK-74M 🗒️ github.com/SocialScienc...
youtu.be
Large Language Models for Social Research: Potentials and Challenges
YouTube video by MZES Methods Bites
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 05/11/2025
🕑 Join us *today* at 13:45 CEST for the talk 'What Shapes Voter Perceptions of Election Polls? The Impact of Partisanship and Visual Design' by @eliaskoch.bsky.social (Hertie School) ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 29/10/2025
🚨 Upcoming: "What Shapes Voter Perceptions of Election Polls? The Impact of Partisanship and Visual Design" 👤 @eliaskoch.bsky.social (Hertie School) 🗓️ Wed, November 5, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi...
What Shapes Voter Perceptions of Election Polls? The Impact of Partisanship and Visual Design

Hybrid event [A5, 6, Room A231 + Zoom]
November 05, 2025, 13:45-15:15

Abstract

Election polls are a central feature of modern electoral campaigns, providing voters with information that can guide their decisions. Yet, voters are often confronted with many polls showing volatile or conflicting outcomes, and media outlets present these polls in very different ways. This raises two key questions: (1) How do voters judge the trustworthiness of a poll’s results? and (2) How does the way a poll is presented affect these perceptions? I present experimental evidence from two large-scale studies in Germany. Together, they show that both the content of a poll and the way it is presented influence voter perceptions, offering new insights into how individuals navigate modern campaigns environments.

Presenter(s)

Elias Koch is a Doctoral Researcher at the Research Training Group DYNAMICS (HU Berlin/Hertie School) and a Research Associate at the Hertie School in Berlin. His research explores party competition and political behaviour in established democracies, with a particular focus on shifting public opinion landscapes.
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 22/10/2025
🕑 Join us *today* at 13:45 CEST for the talk 'Large Language Models for Social Research: Potentials and Challenges' by @indiiigo.bsky.social (University of Mannheim) ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 15/10/2025
🚨 Upcoming: "Large Language Models for Social Research: Potentials and Challenges" 👤 Indira Sen (University of Mannheim) 🗓️ Wed, October 22, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi... 🔗 socialsciencedatalab.mzes.uni-mannheim.de/page/events/
Large Language Models for Social Research: Potentials and Challenges

Hybrid event [A5, 6, Room A231 + Zoom]
Oktober 22, 2025, 13:45-15:15

Abstract

Large Language Models (LLMs) have the potential to revolutionize the social sciences—for example, by accelerating content analysis or enabling realistic social simulations. In this workshop, I will discuss how LLMs can be applied and audited for social science applications, including the generation of synthetic survey responses and content analysis. I will also address how biases in LLMs can hinder these applications and explore ways to better surface and understand these biases. Finally, I will present a hands-on use case demonstrating how LLMs can be guided using demographic personas for both content analysis and simulated surveys.

Presenter(s)

Indira Sen is a Junior Faculty member at the University of Mannheim’s Business School in the Chair of Data Science for the Social and Economic Sciences. Her work lies at the intersection of NLP and Computational Social Science, specifically in developing and evaluating representative and equitable language technology, including Large Language Models.
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 02/10/2025
🚨 Content alert 🚨 New workshop materials published! ➡️ Roundtable Discussion: New Developments in Large-Scale Survey Data in Germany 👤 Claudia Schmiedeberg, Pablo Christmann, Stefanie Wolter, Michael Bergmann, Arne Bethmann 🗒️ github.com/SocialScienc...
github.com
GitHub - SocialScienceDataLab/roundtable-developments-LargeScale: Roundtable Discussion: New Developments in Large-Scale Survey Data in Germany by Claudia Schmiedeberg, Pablo Christmann, Stefanie Wolt...
Roundtable Discussion: New Developments in Large-Scale Survey Data in Germany by Claudia Schmiedeberg, Pablo Christmann, Stefanie Wolter, Michael Bergmann, Arne Bethmann - GitHub - SocialScienceDa...
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 24/09/2025
🕑 Join us *today* at 13:45 CEST for the talk 'Roundtable Discussion: New Developments in Large-Scale Survey Data in Germany' by Claudia Schmiedeberg, Pablo Christmann, Stefanie Wolter, Michael Bergmann, Arne Bethmann ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 18/09/2025
🚨 Upcoming: "Roundtable Discussion: New Developments in Large-Scale Survey Data in Germany" 👤 Claudia Schmiedeberg, Pablo Christmann, Stefanie Wolter, Michael Bergmann, Arne Bethmann 🗓️ Wed, September 24, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi...
Roundtable Discussion: New Developments in Large-Scale Survey Data in Germany

Hybrid event [A5, 6, Room A231 + Zoom]
September 24, 2025, 13:45-15:15

Abstract

The roundtable brings together researchers from leading institutes and survey programs in Germany including the German Longitudinal Environmental Study (GLEN), the Family Research and Demographic Panel (FreDA), the Research Data Center of the Institute for Employment Research (IAB), and the Survey of Health, Aging and Retirement in Europe (SHARE). The discussion will focus on current innovations, challenges, and opportunities in large-scale survey data from the data producers’ and users’ perspective.

Presenter(s)

Claudia Schmiedeberg is a postdoctoral researcher at the Department of Sociology at LMU Munich. Her research focuses on survey methodology, environmental topics, and couple relationships.

Pablo Christmann is the project coordinator of FReDA – The German Family Demography Panel Study and a postdoctoral researcher at GESIS. His main research interests include political attitudes as well as survey methodology and methods.

Stefanie Wolter is a senior researcher at the Research Data Center of the Federal Employment Agency. She is project head of the Linked Personnel Panel, and responsible for linking enterprise and establishment data. Her research focuses on flexible work and within-firm inequality.

Michael Bergmann is a survey methodologist with a doctorate in social sciences from the University of Mannheim. As part of a joint appointment by htw saar and SBI, he works as head of the Survey Methodology department for the Survey of Health, Ageing and Retirement in Europe (SHARE) and as professor of survey methodology at the Faculty of Social Sciences. His research interests include methods for improving the quality of survey data, the investigation of the effects of different survey modes on data quality in panel studies, and the analysis of interviewer behavior. In terms of content, he is primarily …
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 10/09/2025
🕑 Join us *today* at 13:45 CEST for the talk 'Assessing the Reproducibility of Observational Social Research' by @lschaechtele.bsky.social (LMU Munich) ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 02/09/2025
🚨 Upcoming: "Assessing the Reproducibility of Observational Social Research" 👤 @lschaechtele.bsky.social (LMU Munich) 🗓️ Wed, September 10, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi... 🔗 socialsciencedatalab.mzes.uni-mannheim.de/page/events/
Assessing the Reproducibility of Observational Social Research

Hybrid event [A5, 6, Room A231 + Zoom]
September 10, 2025, 13:45-15:15

Abstract

Reproducibility – i.e., the extent to which results are consistent when re-running the same code on the same data – is a minimum requirement for credible empirical research. However, as prior audits have tended to look at selective samples, only little is known so far about its extent in the observational social sciences. In this input talk, I present insights from a large-scale reproducibility assessment of published social science papers that use data from the European Social Survey (ESS). Starting from an initial pool of 1,206 articles, we obtained research code for 385 papers and conducted a standardized reproducibility assessment on a random sample of 100. I will present insights into our method and our results, highlight common hurdles and pitfalls we encountered, and conclude by discussing low-cost measures that could help improve reproducibility at scale.

Presenter(s)

Laura Schächtele is a PhD candidate in Sociology at the LMU Munich and part of the DFG-funded meta-scientific research program META-REP. She holds a master’s degree in Sociology from the LMU Munich and has been a visiting researcher at the Meta-Research Center at Tilburg University. In her dissertation, she investigates the links between academic incentive structures, researchers’ strategic behavior, and scientific transparency. Her broader research interests include the sociology of science, social inequality, and quantitative methods of empirical social research
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 02/09/2025
▶️ Social Science Data Lab: Fall 2025 Events Six input talks by great researchers (see below ⤵️)! 🗓️ Details & Zoom: socialsciencedatalab.mzes.uni-mannheim.de/page/events/ 👥 Organizers: @rubac.bsky.social, @denis-cohen.bsky.social and Alexander Wenz
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 17/07/2025
🚨 Content alert 🚨 New recording and workshop materials published! ➡️ Forecasting the German Federal Election 2025 - Different Modelling Approaches 👤 @hannahrajski.bsky.social (Uni Mannheim) & @cornelius-erfort.bsky.social (Witten/Herdecke Uni) 📺 youtu.be/iQXUQ3NsKsk 🗒️ github.com/SocialScienc...
youtu.be
Forecasting the German Federal Election 2025 - Different Modelling Approaches
YouTube video by MZES Methods Bites
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 28/05/2025
🚨 Content alert 🚨 New recording and workshop materials published! ➡️ Analyzing Survey Data with Weights – A Practical Introduction 👤 Stefan Zins (Institute for Employment Research) 📺 youtu.be/uAHYkvoWY-Q 🗒️ github.com/SocialScienc...
youtu.be
Analyzing Survey Data with Weights – A Practical Introduction
YouTube video by MZES Methods Bites
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 27/05/2025
CANCELLED: Unfortunately, @indiiigo.bsky.social SSDL talk tomorrow has been cancelled for this semester. The talk will take place next semester instead. We will share the new date and details as soon as they are confirmed. 🔗 Stay updated: socialsciencedatalab.mzes.uni-mannheim.de/page/events
socialsciencedatalab.mzes.uni-mannheim.de
Methods Bites
Blog of the MZES Social Science Data Lab
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 23/05/2025
🚨 Upcoming: "Shuffled and Permutated Personas: How Reliable are LLMs at Emulating Personas?" 👤 @indiiigo.bsky.social Indira Sen (University of Mannheim) 🗓️ Wed, May 28, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi... 🔗 socialsciencedatalab.mzes.uni-mannheim.de
Shuffled and Permutated Personas: How Reliable are LLMs at Emulating Personas?

Large Language Models (LLMs) have the potential to revolutionize the social sciences—for example, by accelerating content analysis or enabling realistic social simulations. In this workshop, I will discuss how LLMs can be applied and audited for social science applications, including the generation of synthetic survey responses and content analysis. I will also address how biases in LLMs can hinder these applications and explore ways to better surface and understand these biases. Finally, I will present a hands-on use case demonstrating how LLMs can be guided using demographic personas for both content analysis and simulated surveys.

Indira Sen  is a Junior Faculty member at the University of Mannheim’s Business School in the Chair of Data Science for the Social and Economic Sciences. Her work lies at the intersection of NLP and Computational Social Science, specifically in developing and evaluating representative and equitable language technology, including Large Language Models.
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 21/05/2025
🕑 Join us *today* at 13:45 CEST for the talk 'Forecasting the German Federal Election 2025 - Different Modelling Approaches' by @hannahrajski.bsky.social (University of Mannheim) & @cornelius-erfort.bsky.social (Witten/Herdecke University). ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 15/05/2025
🚨 Upcoming: "Forecasting the German Federal Election 2025 - Different Modelling Approaches" 👤 @hannahrajski.bsky.social (Uni Mannheim) & @cornelius-erfort.bsky.social (Witten/Herdecke Uni) 🗓️ Wed, May 21, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi...
Forecasting the German Federal Election 2025 - Different Modelling Approaches

Abstract

The Zweitstimme.org project presents a comprehensive approach to forecasting the 2025 German federal election, combining multiple methodologies to predict both party vote shares (Zweitstimme) and constituency-level outcomes (Erststimme). This presentation showcases three distinct forecasting approaches: a dynamic Zweitstimme model, a proportional swing Erststimme model, and citizen forecasting. The project also communicated the forecasts and their uncertainties to the public, with results being shared in various media outlets.

Presenter(s)

Hannah Rajski is a PhD candidate in Political Science at the Graduate School of Economic and Social Sciences at the University of Mannheim. She works in the project Election Forecasts for the German Federal Election 2025. Her main research interests lie in quantitative methods, comparative politics, and political sociology with a focus on political behaviour and elections. In her dissertation she analyses voters‘ expectations about election outcomes and how these can be aggregated into citizen forecasts. Hannah holds a bachelor’s degree in Politics, Administration and International Relations from Zeppelin University, Friedrichshafen, Germany and a master’s degree in Politics and Public Administration from the University of Konstanz, Germany.

Cornelius Erfort is Postdoc at the Witten/Herdecke University, working on the project Election Forecasts for the German Federal Election 2025. His general interests are in comparative politics and quantitative methods. More specifically, he is working on voter targeting, interest groups, and voting behavior. In his dissertation, he analyzed how parties use the target and tailor their digital election ads. He was a member of the Research Training Group DYNAMICS which is jointly organized by Humboldt-Universität zu Berlin and the Hertie School.
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 05/05/2025
🚨 Content alert 🚨 New recording and workshop materials published! ➡️ Surveying Diversity: Integrating Queer Perspectives in Survey Research 👤 @lisadevries.bsky.social (German Institute for Adult Education) 📺 youtu.be/zfKwaJtuA9c 🗒️ github.com/SocialScienc...
youtu.be
Surveying Diversity: Integrating Queer Perspectives in Survey Research
YouTube video by MZES Methods Bites
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 30/04/2025
🕑 Join us *today* at 13:45 CEST for the talk 'Analyzing Survey Data with Weights – A Practical Introduction' by Stefan Zins (Institute for Employment Research, IAB). ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 28/04/2025
🚨 Upcoming: "Analyzing Survey Data with Weights – A Practical Introduction" 👤 Stefan Zins (Institute for Employment Research, IAB) 🗓️ Wed, April 30, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi... 🔗 socialsciencedatalab.mzes.uni-mannheim.de/page/events/
"Analyzing Survey Data with Weights – A Practical Introduction" by Stefan Zins (Institute for Employment Research, IAB)

Even if it is not apparent to many daily users of statistics, analyzing survey data can be one of the most challenging tasks in inferential statistics. Survey methodologists and statisticians have long acknowledged this, pointing to the so-called Total Survey Error (TSE). Although there is an awareness of the complex error structure, all too often, statistical inference is done with methods that implicitly assume rather simple errors that are straightforward to estimate. This is particularly true concerning the usage of survey weights. Often considered a nuisance, but necessary for unbiased estimates for so-called descriptive statistics, their effect on standard errors is seldom considered using the appropriate methodology.
The lecture will give basic insights into the construction and logic of survey weights and the appropriate methods for using them for statistical inference.
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 07/04/2025
🚨 Upcoming: "Surveying Diversity: Integrating Queer Perspectives in Survey Research" 👤 @lisadevries.bsky.social (German Institute for Adult Ed.) 🗓️ Wed, April 9, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi... 🔗 socialsciencedatalab.mzes.uni-mannheim.de/page/events
Persistent discrimination against LGBTQI* people, along with recent developments such as rising violence and current backlash in some regions, highlights the urgent need for research on the (changing) living conditions of LGBTQI* people. However, current research on LGBTQI* people is often hindered by data limitations and gaps, and many survey providers and researchers struggle to incorporate queer perspectives into surveys adequately.  

This talk will give an overview of different methods, opportunities, and challenges of integrating queer perspectives in survey research. Based on practical examples and personal experiences, the talk will provide insights into the measurement of sexual orientation and gender identity, different sampling methods for reaching LGBTQI* people, and questionnaire design beyond heteronormativity. Finally, the talk will highlight the challenges and opportunities of data analysis in light of current research and developments.
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 27/02/2025
🚨 Upcoming: "Digital Data, Contextual Complexities, and Lessons for Social Scientists" 👤 @nschwitter.bsky.social (University of Mannheim) 🗓️ Wed, March 5, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi... 🔗 socialsciencedatalab.mzes.uni-mannheim.de/page/events/
 2025-03-05 | Input talk | Nicole Schwitter (University of Mannheim)
Digital Data, Contextual Complexities, and Lessons for Social Scientists
more
 Hybrid event [A5, 6, Room A231 + Zoom]
 March 05, 2025, 13:45-15:15

Abstract

With increasing digitalisation, data is everywhere - (seemingly) waiting to be harvested, by social scientists, from historic archives and search trends to Facebook friendships and open-source collaborations. Yet beneath this public surface lies the usual complexity of data generation, raising important questions about whether the observable actions represent meaningful concepts. This talk will serve as a cautionary reminder for social scientist to scrutinise their data, investigate and describe the data-generating context and community, and to (also) apply formal theory when measuring constructs. I will be drawing on several well-published examples and highlight their shortcomings to underscore these points and to suggest how we can – and need to – do better.

Presenter(s)

Nicole Schwitter is a postdoctoral researcher at the MZES and holds a PhD in Sociology from the University of Warwick, where she studied offline interactions in online communities using Wikipedia as a case study. Her research explores (inter)group relations and social dynamics, with a strong interest in applying novel computational methods to social science questions.
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 13/02/2025
▶️ Social Science Data Lab: Spring 2025 Events Five input talks by great researchers (see below ⤵️)! 🗓️ Details & Zoom: socialsciencedatalab.mzes.uni-mannheim.de/page/events/ 👥 Organizers: @rubac.bsky.social, @denis-cohen.bsky.social and Alexander Wenz
socialsciencedatalab.mzes.uni-mannheim.de
Methods Bites
Blog of the MZES Social Science Data Lab
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 20/01/2025
🆕 Content alert on Methods Bites & Workshop Video Recording ▶️ "Computationally Analyzing Politicians’ Body Language Using Pose Estimation" 👤 Oliver Rittmann (MZES, University of Mannheim) 🔗 Blogpost: socialsciencedatalab.mzes.uni-mannheim.de/article/comp... 🔗 Video Recording: youtu.be/w6orbDvQSN4
Summary of the SSDL blogpost 'Computationally Analyzing Politicians’ Body Language Using Pose Estimation' by Oliver Rittmann (MZES University of Mannheim)
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 04/12/2024
🕑 Join us *today* at 13:45 CEST for the talk 'Using YouTube Data for Social Science Research: Studying American Local Politics with Government Meeting Videos' by Tyler Simko @simko.bsky.social (Princeton University). ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 28/11/2024
🚨 Content alert 🚨 New recording and workshop materials published! ➡️ Using Data Donations to Collect Digital Trace Data: Promises and Pitfalls for the Social Sciences 👤 @valeriehase.bsky.social (LMU Munich) 📺 youtu.be/ANOg51z1K3w 🗒️ github.com/SocialScienc...
youtu.be
Using Data Donations to Collect Digital Trace Data: Promises and Pitfalls for the Social Sciences
YouTube video by MZES Methods Bites
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 27/11/2024
🚨 Upcoming: "Using YouTube Data for Social Science Research" 👤 @simko.bsky.social (Princeton University) 🗓️ Wed, Dec 4, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi... 🔗 socialsciencedatalab.mzes.uni-mannheim.de/page/events/
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Reposted by MZES Social Science Data Lab
Denis Cohen @denis-cohen.bsky.social · 20/11/2024
🚨 CfA: MZES-DVPW Conference "Methods of Political Science" 🗓️ Mannheim, Mar 27-28, 2025 ⏰ Deadline: Dec 16, 2024 🔗Apply via sosci.sowi.uni-mannheim.de/mzes-dvpw-me... @gessler.bsky.social, @aleininger.bsky.social, @hannahrajski.bsky.social, Oliver Rittmann & I look forward to your submissions!
A screenshot of the call for applications.
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 24/04/2024
🕑 Join us *today* at 13:45 CEST for this exciting talk on decomposing group inequalities by @crowold.bsky.social (@mpidr.bsky.social). ⬇️ Zoom link and details below
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 17/04/2024
🚨 Upcoming: "Towards more life-course-sensitive decompositions of group-inequalities" 👤 @crowold.bsky.social (@mpidr.bsky.social) 🗓️ Wed, April 24, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi... 🔗 www.mzes.uni-mannheim.de/socialscienc...
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 17/04/2024
Join us *today*, 13:45-15:15 CET, for Olga Kononykhina's talk "Using AI tools for research". Details below ⬇️
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 11/04/2024
🚨 Content alert 🚨 New recording and workshop materials published! ▶️ Survey mastery: a deep dive into SQP 3.0 to enhance questionnaire development 👤 @lydiarepke.bsky.social (GESIS) 📺 youtu.be/0zvMVONgurY 📄 github.com/SocialScienceDataLab/survey-sqp-questionaire
youtu.be
Survey mastery: a deep dive into SQP 3.0 to enhance questionnaire development
2024-03-13 | Input Talk | Lydia RepkeAbstractDesigning questionnaires is said to be an art. It involves knowledge and experience. To make this a more scienti...
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MZES Social Science Data Lab @mzes-ssdl.bsky.social · 10/04/2024
🚨 Upcoming: "Using AI tools for research" 👤 Olga Kononykhina (LMU Munich) 🗓️ Wed, April 17, 13:45-15:15 CET 📺 Register for the live stream: us02web.zoom.us/meeting/regi... 🔗 Details: www.mzes.uni-mannheim.de/socialscienc...
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