Hannah Bucher, Anne-Kathrin Stroppe, Axel M. Burger, Thorsten Faas, Harald Schoen, Marc Debus, Sigrid Roßteutscher, Denis Cohen, Robert Huber, Michael Jankowski, Melvin John, Jan Menzner, Christian Schimpf, Christian Schnaudt, Nils D. Steiner, Richard Traunmüller, Fabienne Unkelbach, Vera Vogel, Carsten Wegscheider, Robert Welz, Alexander Wuttke
Special Issue Conclusion: The GLES Open Science Challenge 2021 in Hindsight: Experiences Gained and Lessons Learned

The GLES Open Science Challenge 2021 was a pilot project aimed at demonstrating that registered reports are an appropriate and beneficial publication format in quantitative political science that helps to increase transparency and replicability in the research process and thus yields substantial and relevant contributions to our discipline. The project resulted in the publication of this special issue, which includes seven registered reports based on data from the German Longitudinal Election Study (GLES) collected in the context of the 2021 German federal election. This concluding article of the special issue brings together the perspectives of the participating authors, reviewers, organizers, and editors in order to take stock of the different experiences gained and lessons learned in the course of the project. We are confident that future projects of a similar nature in political science, as well as authors, reviewers, and editors of registered reports, will benefit from these reflections.