The German Longitudinal Election Study (GLES) is the central survey program in Germany for the continuous collection and provision of high-quality data for national and international election research. The methodologically diverse surveys of the GLES make it possible to investigate the political attitudes and behaviour of voters and candidates. Since its foundation, the GLES has been carried out in close cooperation between the German Society for Electoral Studies (DGfW) and GESIS – Leibniz Institute for the Social Sciences.
GLES Design

Data release
GLES Candidiate Study 2021 version 2.0.0 is available

The GLES Candidate Study is a survey among all candidates of the parties that were represented in the Bundestag with parliamentary group status prior to the 2021 federal election (CDU, CSU, SPD, AfD, FDP, DIE LINKE, and BÜNDNIS 90/DIE GRÜNEN). The published dataset contains 735 interviews of the parties' direct and list candidates.
Information on the data
Current surveys

Both during and between federal elections, GLES conducts surveys and prepares data. Here you can find out more about planned surveys and data publications.


New publication
Special Issue “GLES Open Science Challenge 2021” released! (Online first)
The GLES Open Science Challenge 2021 was a pioneering initiative in quantitative political science. The project combined the rigor of registered reports—a new publication format in which studies are evaluated prior to data collection/access and analysis—with quantitative political science research in the context of the 2021 German federal election. The special issue, which features seven registered reports that resulted from the project, shows that transparent research following open science principles benefits our discipline and substantially contributes to quantitative political science.
All contributions are based on GLES data and are available open access.


Access Special Issue

GLES Newsletter
Stay informed!

The GLES Newsletter keeps you informed about new pre-releases, updates, and general news about GLES.
History of the Project
The German Longitudinal Election Study (GLES) was initiated by the German Society for Electoral Studies (DGfW). Between 2009 and 2019, the study was funded by the German Research Foundation (DFG). Since January 2018, the GLES has been permanently anchored as an institutionalized election study at GESIS.

History of the project
GLES Coordination Group
GLES Bibliography
We collect publications and scientific contributions based on GLES data. If you have used GLES data in a scientific paper or conference presentation, please inform us.

Report a publication
GLES Bibliography