GLES Panel 2025, Wave 30

The questionnaire of Wave 30 covers questions on political and social attitudes, evaluations of candidates, parties, and institutions, intended voting behavior, party contacts during the election campaign, use of the Wahl-O-Mat, and assessments of the TV debate between Merz and Scholz. The German Longitudinal Election Study (GLES) is the central infrastructure project 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 enable the research of political attitudes and behavior of voters and candidates. Since its foundation, the GLES has been conducted in close cooperation between the German Society for Electoral Research (DGfW) and GESIS – Leibniz Institute for the Social Sciences. Sample A of the GLES Panel consists of quota-based selections of eligible German voters from several non-probability online panels, divided into five subsamples. Participants in the 2017 election campaign surveys were drawn from the main sample A1 (2016), the recontact sample A2 (2013), and the refreshment sample A3 (2017) of the GLES Short-term Campaign Panel 2017. Sample A was further supplemented by refreshment samples A4 for the 2021 election campaign (2020) and A5 for the 2025 election campaign (2024). For the early federal election in 2025, active participants were surveyed up to five times throughout the election campaign and after the federal election. The GLES Panel surveys continue to enable diverse and in-depth analyses of the impact of political events and election campaigns on changes in political attitudes and decision-making processes.