Welcome to the German Internet Panel

The German Internet Panel (GIP) is a longitudinal study at the University of Mannheim and the central infrastructure project of the Collaborative Research Center (SFB) 884 “Political Economy of Reforms”, which is funded by the German Research Foundation (DFG). The study is led by Prof. Dr. Blom, Professor for Data Science at the School of Social Sciences. The GIP researches individual attitudes and preferences relevant in political and economic decision-making processes. For this purpose, 4,000 people in Germany are regularly interviewed online on a variety of topics. To ensure an accurate representation of the general population in Germany, the GIP applies and develops cutting-edge scientific methods. The data collected are the empirical foundation of the scientific research of the SFB-projects.

On these pages you will find information about us, our work, and how you can access and use our data.

The Mannheim Corona Study

On the 20th March, we launched the Mannheim Corona Study on the impact of the Corona pandemic on society. Since, we have been investigating daily how the pandemic and the measures undertaken to contain it are affecting life in Germany.

Follow the daily-updated results of the study.

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Recent Publications

Cornesse et al. 2021

From German Internet Panel to Mannheim Corona Study: Adaptable probability-based online panel infrastructures during the pandemic

Felderer et al. 2021

How does switching a Probability-Based Online Panel to a Smartphone-Optimized Design Affect Response Rates and Smartphone Use?

Rettig & Blom 2021

Memory Effects as a Source of Bias in Repeated Survey Measurement

Cornesse & Schaurer 2021

The Long-Term Impact of Different Offline Population Inclusion Strategies in Probability-Based Online Panels: Evidence From the German Internet Panel and the GESIS Panel

Overview of the GIP

About Us

Here you can find out more about our work and the GIP team.

Infos for Data Users

Here you can find our questionnaires and our data.


On this page we present selected results of our surveys.


Are you a media representative? These pages contain information for you.