Sebastian Stier
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sebstier.bsky.social
Sebastian Stier
@sebstier.bsky.social
960 followers 240 following 31 posts

Professor of Computational Social Science @University of Mannheim & Scientific Director Department Computational Social Science @GESIS
https://sebastianstier.com

Videos
Communication & Media Studies 39%
Political science 30%
Posts Replies Media Videos

Reposted by Ingmar Weber, Sebastian Stier

i2sc.net
Interdisciplinary Institute for Societal Computing @i2sc.net · 2d
The Societal Observatory Using Novel Data Sources (SOUNDS) project is inviting applications for the following position:

𝗣𝗼𝘀𝘁𝗱𝗼𝗰 𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵𝗲𝗿 𝗽𝗼𝘀𝗶𝘁𝗶𝗼𝗻𝘀 (𝗳/𝗺/𝘅) 𝗳𝗼𝗿 𝗦𝗼𝗰𝗶𝗲𝘁𝗮𝗹 𝗖𝗼𝗺𝗽𝘂𝘁𝗶𝗻𝗴 (𝗿𝗲𝗳: 𝗪𝟮𝟴𝟬𝟭)
Paygrade: E13 TV-L 100%
Duration: 2 years

@ingmarweber.de @politicsunisaar.bsky.social @uni-saarland.de

Reposted by Johannes Breuer, Sebastian Stier

gesistraining.bsky.social
GESIS Training @gesistraining.bsky.social · 9d
New skills bloom this May with #GESISworkshops 🌸

Explore:
🌐📊 Preprocessing and Analyzing Web Tracking Data
🧩📈 Introduction to Conjoint Survey Experiments
💻⏱️ Introduction to R

@gesis.org

Full program ➡️ gesis.org/training
Workshop details 🧵👇
Upcoming Workshops May 2026: Preprocessing and Analyzing Web Tracking Data 04 – 05 May | Hybrid (Cologne | Online) Introduction to Conjoint Survey Experiments 06 – 07 May | Online Introduction to R 06 – 08 May | Online

sebstier.bsky.social
Sebastian Stier @sebstier.bsky.social · 10d
Congrats Lisa. Well deserved! Wish you a great start in Frankfurt.

Reposted by Alexander Wuttke, Damian Trilling, Sebastian Stier

lfoswaldo.bsky.social
Lisa Oswald @lfoswaldo.bsky.social · 10d
Big news: I started a new position as Professor for Computational Social Science (W1 tenure track) at the Center for Critical Computational Studies (C3S) at Goethe University in Frankfurt am Main!

www.c3s-frankfurt.de/who-we-are#m...
Who we are - Center for critical computational studies
www.c3s-frankfurt.de

Reposted by Sebastian Stier

socarxivbot.bsky.social
SocArXivBot @socarxivbot.bsky.social · 15d
Introducing the GESIS AppKit: An app-based mobile data collection infrastructure: https://osf.io/q8v72

Reposted by Sebastian Stier

gesis-panel.bsky.social
GESIS Panel @gesis-panel.bsky.social · 16d
Since joining the GESIS Panel in 2024, the GESIS Panel.dbd Digital Behavioral Data Sample has released its first dataset, opening new research opportunities by using survey data linked with digital behavioral data.
Dataset: search.gesis.org/research_dat...
Documentation: shiny.gesis.org/gpdbd/

Reposted by Sebastian Stier

datendealerin.bsky.social
Datendealerin 🌷☕ @datendealerin.bsky.social · 18d
There is a permanent position available in my team! You will help researchers gain access to highly sensitive data and analyse them in a secure environment: gesis.jobs.personio.de/job/2495658?...

Go for it and see you in Cologne ❤️🤍
Mitarbeiter*in für vertrauenswürdige Forschungsumgebungen (DSS-25) | Jobs bei GESIS – Leibniz-Institut für Sozialwissenschaften
GESIS ist eine der weltweit führenden Infrastruktureinrichtungen für die Sozialwissenschaften und steht Forscher*innen mit Expertise und Infrastrukturangeboten auf allen Ebenen ihrer Forschungsprojekt...
gesis.jobs.personio.de

Reposted by Thomas Kron

sebstier.bsky.social
Sebastian Stier @sebstier.bsky.social · 23d
🚨 Coming up: DACH-CSS 2026 Conference
“Democracy at Risk? Societal Challenges, Data, and Research Infrastructures in the Age of CSS”

📅 Date: May 21–22, 2026
📍 Location: CEU, Vienna, Austria
🔗 Program and Registration: computational-social-science.org/workshops/20...
Democracy at Risk? Societal Challenges, Data, and Research Infrastructures in the Age of CSS – Computational Social Science
computational-social-science.org

Reposted by Sebastian Stier, Gesis Leibniz-Institut für Sozialwissenschaften, Aleksandra Urman

johannesbreuer.com
Johannes Breuer @johannesbreuer.com · 29d
New @gesis.org data set publication: "Social Media Accounts of German Candidates from the German Federal Election 2025"
doi.org/10.4232/1.14...
GESIS-Suche
doi.org

Reposted by Sebastian Stier

gesis.org
GESIS - Leibniz-Institut für Sozialwissenschaften @gesis.org · Jan 14
#blog
The new post on the #GESISblog highlights the use of and attitudes toward #AI in Germany. Julius Kleinbub, Dr. Joachim Piepenburg, and Katharina Kraft show that most people had heard about ChatGPT, while frequent use was scare, with mixed attitudes toward AI.
Digital Technologies and Sampling. Comparing Estimates From Different Recruitment - Approaches Within the GESIS Panel.dbd.
Using a dataset of the GESIS Panel.dbd from 2023, this article examines AI use and attitudes in Germany. Almost half of the respondents had tried ChatGPT while one in five had not heard of it.
blog.gesis.org

Reposted by Sebastian Stier

gesis.org
GESIS - Leibniz-Institut für Sozialwissenschaften @gesis.org · Jan 12
#AI #GESISPanel #DBD
1st wave of data from GESIS Panel.dbd Digital Behavioral Data Sample: The data covers topics such as demographics, internet use, attitudes toward AI, trust in the media. In the future, the data can be linked to a wide variety of digital behavioral data.
search.gesis.org/res...

Reposted by Sebastian Stier, Florian Keusch

johannesbreuer.com
Johannes Breuer @johannesbreuer.com · Jan 9
Postdoc position in CSS/Sociology at @unidue.bsky.social:
www.uni-due.de/karriere/ste...
EG 13 TV-L for three years
Please apply before Feb 5th 2026
Research cluster Anja Weiß, Institute for Sociology, University of Duisburg-Essen #computationalsocialscience
Stellenausschreibung
www.uni-due.de

Reposted by Sebastian Stier

maierjuergen.bsky.social
Jürgen Maier @maierjuergen.bsky.social · Jan 8
New article with @corinnaoschatz.bsky.social and @jenniferbast.bsky.social in Party Politics on the perceived costs and benefits of negative campaigning for male and female candidates and its impact on attack behavior

doi.org/10.1177/1354...
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
doi.org

Reposted by Axel Bruns, Sebastian Stier

kwelle.bsky.social
Katrin Weller @kwelle.bsky.social · Dec 23
January 16, 2026: Julian Jaursch from the German Digital Service Coordinator @bnetza.bsky.social will introduce the EU's #DSA Data Access Portal during the series "Show & Tell – Social Media Data in Research Practice". Register here: events.gwdg.de/event/1259/ #digitalservicesact #platformdata
Applications via the EU's DSA Data Access Portal: An Introduction
Researchers can submit requests to the EU's "Data Access Portal" to obtain non-public data from very large online platforms in certain cases. What information do researchers need to provide and what d...
events.gwdg.de

Reposted by Mark J. Brandt, Jürgen Maier, Alessandro Nai , and 2 more

corinnaoschatz.bsky.social
Corinna Oschatz @corinnaoschatz.bsky.social · Dec 18
🫵WE WANT YOU 🎓
Are you interested in political communication, negative campaigning, and social norms? Are you experienced in quantitative methods? Do you have good rain clothes?

Then our postdoc position might be just for you: werkenbij.uva.nl/en/vacancies...

Thank you for sharing. Merry Christmas
Vacancy — Postdoc: "Role of Social Norms and Norms Transgression in the Acceptance of Negative Campaigning"
<p><span>Are you passionate about political communication, election campaigns, and quantitative empirical research? The Amsterdam School of Communication Research is seeking a highly motivated Postdoc for the research project<em> ‘That’s (not) appropriate’– Role of Social Norms and Norm Transgression in Voters’ Acceptance of Negative Campaigning, </em></span><span>led by Dr. Corinna Oschatz.</span></p>
werkenbij.uva.nl

Reposted by Stephan Lewandowsky, Hugo Mercier, Philipp Schmid , and 5 more

lfoswaldo.bsky.social
Lisa Oswald @lfoswaldo.bsky.social · Dec 11
It's out!!

www.science.org/doi/10.1126/...

Big thank you to my coauthors @small-schulz.bsky.social and @lorenzspreen.bsky.social, and to all participants who discussed 20 political issues over 4 weeks in 6 subreddit, 3 experimental conditions and let us observe.

Reposted by Sebastian Stier, David Darmofal

lukasbirkenmai1.bsky.social
Lukas Birkenmaier @lukasbirkenmai1.bsky.social · Dec 2
⏰ I’m happy to share that a major paper from my dissertation was published today (🔗 doi.org/10.1017/pan....) in Political Analysis. In the paper, Clemens Lechner and I conduct an extensive validation study on how to measure politicians’ public personality traits using computational text analysis!

Reposted by Jürgen Maier, Marc Debus, Sebastian Stier

dpltr22.bsky.social
Dylan Paltra @dpltr22.bsky.social · Dec 1
🚨Publication Alert!
My first first-author publication with @msaeltzer.bsky.social and @pluggedchris.bsky.social is out in @polbehavior.bsky.social, which began as my bachelor's thesis. We study how party polarization shapes affective polarization—with a particularly important role of the AfD. (1/7)🧵
Cover page of the article. "Affective States: Cultural and Affective Polarization in a Multilevel-Multiparty System" by Dylan Paltra, Marius Sältzer and Christian Stecker. "Affective Polarization—the growing mutual dislike among partisan groups—has been identified as a major concern in democracies. Although both economic and cultural ideological divides contribute to ideological polarization, their affective consequences can differ. This paper argues that cultural polarization becomes especially consequential when mobilized by far-right parties. Using data from 116 elections in Germany’s 16 states (1990-2023), we combine more than 550 state-level manifestos with more than 150,000 survey responses to examine how party polarization translates into voter affect. Our analyses show that both economic and cultural polarization increase affective divides, but cultural disagreements fuel hostility only in the presence of the Alternative for Germany (AfD). Acting as a cultural entrepreneur, the AfD amplifies the emotional impact of cultural divisions such as immigration, employing affective rhetoric and provoking strong rejection from other parties and voters. These findings highlight the catalytic role of far-right parties in transforming ideological competition into affective polarization."

Reposted by Sebastian Stier

johannesbreuer.com
Johannes Breuer @johannesbreuer.com · Nov 18
Within our @meta-rep.bsky.social project on research practices in Computational Communication Science (CCS), we are conducting a survey among CCS researchers. We would be grateful if you could participate (takes 10 to 15 minutes) and/or share the link: www.soscisurvey.de/AutoFrontCCS/
#CommSky
Questionnaire | page 1
www.soscisurvey.de

Reposted by Nate Breznau, Johannes Breuer, Sebastian Stier

gesis.org
GESIS - Leibniz-Institut für Sozialwissenschaften @gesis.org · Nov 13
#jobs #stellenangebote #GESISjobs #CSS
Work at GESIS and benefit from many advantages.
youtu.be/YnPMagm0GWE

Apply now for a job as #PostDoc / #SeniorResearcher in Computational Social Science

(13 TV-L, working time 100 %, initially limited for 4 ys. with possible tenure)
www.gesis.org/en/ins...
Working at GESIS
Benefit from many advantages! We provide attractive workplaces in Cologne or Mannheim and offer you generous home office arrangements. We attach great importance to work-life balance and our employees benefit from our company health management program. Get more information: https://www.gesis.org/
youtu.be

Reposted by Ingo Rohlfing, Johannes Breuer, Sebastian Stier , and 1 more

gabriellalapesa.bsky.social
Gabriella Lapesa @gabriellalapesa.bsky.social · Nov 11
Join our CSS department @gesis.org! Postdoc/senior researcher position, tenure track! All info at: www.gesis.org/institut/kar...
Details
GESIS Leibniz Institut für Sozialwissenschaften
www.gesis.org

Reposted by David Lazer, Johannes Breuer, Sebastian Stier

techpolicypress.bsky.social
Tech Policy Press @techpolicypress.bsky.social · Nov 5
A new paper analyzes the “production-consumption gap” on social media, where a small subset of users produce most of the content, and considers its implications for the study of phenomena such as political polarization, and for the design of policy interventions. Prithvi Iyer considers the results:
What a New Study Reveals About the Production-Consumption Gap on Social Media | TechPolicy.Press
Prithvi Iyer considers new research on how online content reveals the tip of the iceberg, leading to incorrect inferences about online public opinion.
www.techpolicy.press

Reposted by Johannes Breuer, Sebastian Stier

gesistraining.bsky.social
GESIS Training @gesistraining.bsky.social · Nov 3
*Preprocessing and Analyzing Web Tracking Data* by Frank Mangold, Helena Rauxloh & @sebstier.bsky.social

🗓️ 04-05 May 2026
🏢 Hybrid: Cologne | Online
🌐 t1p.de/WebTrackingD...

Reposted by Jürgen Maier, Alexander Wuttke, Sebastian Stier

marcdebus.bsky.social
Marc Debus @marcdebus.bsky.social · Oct 31
Interested in the sociodemographic background, policy preferences, attitudes and campaign strategies of candidates for the 2025 Bundestag election? The @gles.bsky.social Candidate Study 2025 is now available (doi.org/10.4232/5.ZA... @gesis.org) and includes CCS Module IV
@ccs-project.bsky.social 👇
gles.bsky.social German Longitudinal Election Study (GLES) @gles.bsky.social · Oct 30
🚨New GLES release for #BTW25: GLES Candidate Study 2025 (ZA10102)
📅24/03–09/06/2025
👥512 interviews
🗳️Political background & nomination, campaigning, political issues, democracy & representation, sociodemographic background
🌍Includes CCS Module IV (@ccs-project.bsky.social)
📥 doi.org/10.4232/5.ZA...

sebstier.bsky.social
Sebastian Stier @sebstier.bsky.social · Oct 30
📝 New preprint out!
We discuss the production-consumption gap on social media and its implications for research and public opinion.
Brilliantly led by @lfoswaldo.bsky.social

doi.org/10.31235/osf...
lfoswaldo.bsky.social Lisa Oswald @lfoswaldo.bsky.social · Oct 30
We have a new preprint: osf.io/preprints/so...

What have we learned about social media - the constantly moving target of empirical research - over the past decade?

Reposted by Stephan Lewandowsky, David Lazer, Jon Green , and 3 more

lfoswaldo.bsky.social
Lisa Oswald @lfoswaldo.bsky.social · Oct 30
We have a new preprint: osf.io/preprints/so...

What have we learned about social media - the constantly moving target of empirical research - over the past decade?

Reposted by Alexander Wuttke, Johannes Breuer, Sebastian Stier , and 1 more

valeriehase.bsky.social
Valerie Hase @valeriehase.bsky.social · Oct 29
Interested in understanding #bias in #CSS?

✨Here's our Special Issue editorial in Communication Methods and Measures:

"Critical, but constructive: defining, detecting, and addressing bias in Computational Social Science"

👉 doi.org/10.1080/1931... (with @bachl.bsky.social & Nathan TeBlunthuis)
Screenshot of Abstract describing the Special Issue on Bias in Computational Social Science in the Journal Communication Methods and Measures

Reposted by Johannes Breuer, Sebastian Stier

gesis.org
GESIS - Leibniz-Institut für Sozialwissenschaften @gesis.org · Oct 29
#DSA #SocialMediaDaten

Im Rahmen der Vortrags- und Diskussionsreihe "Show & Tell – Social-Media-Daten in der Forschungspraxis" der #NFDI findet eine Serie von drei Sessions zum Thema „#Datenzugang für die Forschung im #DigitalServicesAct – neue Chancen, neue Herausforderungen“ statt.

1/2

Reposted by Sebastian Stier

gesis.org
GESIS - Leibniz-Institut für Sozialwissenschaften @gesis.org · Oct 22
#DataQuality #DigitalBehavioralData #DBD
Special Issue Explores the Quality of Digital Behavioral Data, by Weiß, B., Leitgöb, H., & Wagner, C

Most DBD are not generated for research purposes but are a side product of our daily activities. A new special issue addresses key questions:

Reposted by Sebastian Stier

kwelle.bsky.social
Katrin Weller @kwelle.bsky.social · Oct 21
*JOB* As part of the @assured.bsky.social project, we are searching for a person to work in our Secure Data Center team at @gesis.org to create safe researcher trainings. www.gesis.org/en/institute...
The position is open until filled, so do not hesitate to reach our directly if you are interested!
Details
GESIS Leibniz Institut für Sozialwissenschaften
www.gesis.org