Media Use and Its Societal Effects

How do people obtain information in digital media environments—and what are the consequences for individuals, society, and democracy?

The Media Use and Societal Effects (MUSE) research group investigates how people use news and other information-related content, how these practices are changing in the wake of technological and societal shifts, and what impact this has on individuals, the public, and democratic societies.

Digital Information Environments

Our research focuses on digital information environments. These include traditional news outlets such as news websites and journalism apps, as well as social media, search engines, messaging services, generative AI, and other digital information sources. We examine not only news in the narrow sense, but also a broader spectrum of political and social information that people encounter in their daily lives. We are particularly interested in how the boundaries between journalistic, algorithmic, social, and AI-based information sources are shifting, and what role these different actors play in shaping citizens’ understanding of society.

Information-Use Practices

A key focus of our research is on information-use practices. We examine how people assemble their personal repertoire of information across various platforms, evaluate information, verify its credibility, and deal with conflicting information. This includes, for example, the use of social media for political information, the evaluation and validation of information from generative AI systems, and participatory forms of information engagement. We explore how people search for, select, share, comment on, and integrate information into their daily lives.

Furthermore, we are interested in how new information sources become established. We examine the adoption and use of new technologies, the role of digital media in the socialization of adolescents and young adults, and the conscious or unconscious non-use of news and other information sources.

We also examine the mechanisms of information evaluation and trust-building, as well as how people assess the quality and reliability of information in complex digital information environments.

Societal and Individual Impacts

The research group examines not only how information is used but also its consequences. We are particularly interested in issues of civic engagement, political participation, opinion formation, and democratic agency.

We analyze how digital information environments influence political attitudes and behaviors and what role they play in political polarization, political self-efficacy, trust in institutions, and social cohesion. In doing so, we investigate both the consequences of (a lack of) information and those of misinformation and disinformation.

At the same time, we examine the individual consequences of media use. These include issues of social and societal connectedness, information overload, a sense of social orientation, and the ability to navigate complex information environments.

Research Profile

Methodologically, we combine surveys, digital behavioral data, content analysis, qualitative studies, and computer-assisted methods to capture media use and its consequences as comprehensively and realistically as possible. A particular focus is on combining survey data with digital trace data to better understand actual media behavior and its effects.

Our research is conducted in close collaboration with national and international partners, including GESIS – Leibniz Institute for the Social Sciences, the University of Amsterdam, the University of Bremen, the University of Hamburg, Aalto University, the Reuters Institute for the Study of Journalism at the University of Oxford, Ludwig Maximilian University of Munich, Queensland University of Technology in Brisbane, and Friedrich Schiller University Jena.

Since 2013, we have been responsible for the German section of the Reuters Institute Digital News Report, one of the world’s most important comparative long-term studies on digital news and information use. Through this work, we provide key benchmarks on the development of news and information use in Germany and regularly contribute to the academic and public debate on the transformation of digital information environments.

The research group also maintains close ties with stakeholders from the media industry, politics, education, and civil society. We regularly share our research findings through lectures, workshops, and consulting and collaboration projects with journalists and media organizations, including the German Press Agency (dpa), ARD and its regional broadcasters, ZDF, and Deutsche Welle. In addition, we engage in dialogue with policymakers and educational institutions. These collaborations not only facilitate the transfer of scientific findings into practice but also provide important impetus for identifying socially relevant research questions and further developing our research.

The work of the research group’s members has been published in leading international journals, including the *Journal of Communication*, *Communication Theory*, *Communication Research*, *Public Opinion Quarterly*, *The International Journal of Press/Politics*, *Digital Journalism*, *New Media & Society*, *Information, Communication & Society*, *Journalism*, *Journalism Studies*, *Journal of Computer-Mediated Communication*, *International Journal of Communication*, *European Journal of Communication*, *Journal of Broadcasting & Electronic Media*, *Social Science Computer Review*, and *Computational Communication Research*. Our research has been funded by the DFG, NWO, BMFTR, DAAD, the state media authorities, and ARD and ZDF.

Overview

Leaders

Last update: 24.09.2026

Blog Articles, News, Projects, Publications, Podcast Episodes

Stephan Dreyer
Podcast "Die Justizreporter*innen"

Social Media: Harmful Enough to Require a Minimum Age?

Stephan Dreyer was a guest on the ARD podcast Die Justizreporter*innen, where he discussed social media bans for children and young people with reporters Egzona Hyseni and Philip Raillon. He warns against disproportionate interventions and emphasizes the ambivalent role of parents and the danger of negative side effects.

Jan-Hinrik Schmidt mit einem Mikrofon in der Hand.
Cohesion Study by ARD, ZDF, and Deutschlandradio

Social Cohesion and the Role of Public Service Media

ARD, ZDF, and Deutschlandradio—with scientific advice from Jan-Hinrik Schmidt—conducted a study to examine how the population perceives social cohesion and what role public broadcasters play in this. One finding was that more than half of respondents see them as making an important contribution to cohesion.

Claudia Lampert
Protecting Children and Young People in the Digital World

Claudia Lampert Appointed to Expert Commission

Dr. Claudia Lampert will be part of the expert commission appointed by the German federal government to examine the steps necessary for effective protection of children and young people in the media.

Screenshot of the website diskursmonitor, entry “Social Bots” by Gregor Wiedemann
Online Portal for Strategic Communication

Glossary Entry on “Social Bots”

Dr. Gregor Wiedemann wrote a glossary entry on “social bots” for Diskursmonitor, a collaborative online platform that aims to educate and document strategic communication. This topic is marked by major controversy in academia, some of which has played out in public.

Cover of the M&K journal, issue 3/2025
M&K 3/2025 as Special Issue

Diversity, Intersectionality, and Gender in Journalism

The third issue of M&K in 2025 is a special edition on "Diversity, Intersectionality, and Gender in Journalism," edited by Margreth Lünenborg, Ana-Nzinga Weiß, Yener Bayramoğlu, and Bernadette Uth. The nine articles are available open access on the Nomos eLibrary.

Cover of an article by Judith Möller et al. in the journal
Article in Journal of Communication

Positioning and Presentation of Articles in News Aggregators

In the study “Nudges for News Recommenders,” Dr. Nicolas Mattis, Lucien Heitz, Dr. Philipp K. Masur, Prof. Dr. Judith Möller, and Prof. Dr. Wouter van Atteveldt examine how the placement and presentation of environmental news in news aggregators can influence user behavior.

Dartscheibe mit roten Pfeilen an einer Wand.
Media Quiz

Quiz: How Much Do You Know About Media and Freedom of the Press?

Matthias C. Kettemann developed a quiz for the Leibniz Association and t-online's "Ten Questions, One Expert — The Science Quiz" format. The quiz focuses on the key question: "How does the U.S. media landscape differ from that in Germany?"

Cover of the Oxford Handbook
Digital Orders of the Future

Digital Constitutionalism Rethought

In a chapter of the Oxford Handbook of Digital Constitutionalism, Matthias C. Kettemann and Anna Sophia Tiedeke explore digital constitutionalism from the perspective of various normativities. These are the diverse rules, values, and organizing principles that shape the digital space.

Stephan Dreyer
Interview with Evangelische Pressedienst

Social Media Ban Only Possible at EU Level

Media legal expert Stephan Dreyer explains the legal hurdles to banning social media for under-16s in Germany. According to Stephan Dreyer, German politicians have no regulatory authority in this area due to the primacy of the European Union's Digital Services Act (DSA), which came into force in 2024. A ban could therefore only be implemented at EU level.

Eine hübsche junge Familie aus Vater, Mutter Kind blicken strahlend in die Kamera, im Vordergrund links ein Ringlicht
Project for State Media Authorities

Babies and Toddlers as Family Influencers

The HBI is conducting a qualitative and quantitative study to examine how babies and young children under the age of five are portrayed on commercial German-language 'family influencing' profiles on Instagram, TikTok and YouTube. A team led by Dr. Claudia Lampert and Dr. Stephan Dreyer is discussing the findings in relation to the existing legal framework and media ethics considerations.

Martin Fertmann
Successfully Completed Doctorate

Congratulations, Martin Fertmann!

Martin Fertmann successfully defended his law doctoral thesis on the topic of “Human Rights Socialization on Online Platforms: On the Self-Description and External Description of the ‘Meta Oversight Board.” Congratulations!

Cover des Buchs "Recht der Digitalisierung"
Available Open Access

Law of Digitalization

Can the right legal framework meet the central challenges of digitization? This volume, edited by Prof. Dr. Matthias C. Kettemann, explores important new areas of law, the regulation of AI, the role of digital services, and the characteristics of effective technology policy and sensible innovation law.

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