Dear colleagues, This is a gentle reminder that the deadline for abstract submissions for the GLES Open Science Challenge 2021<https://gles-en.eu/gles-open-science-challenge-2021/> is fast approaching: July 12, 2021. The GLES Open Science Challenge is coordinated by The German Longitudinal Election Study (GLES<https://gles-en.eu/gles-open-science-challenge-2021/>), in collaboration with the journal German Political Science Quarterly (PVS<https://www.springer.com/journal/11615>) and the German Society for Electoral Studies (DGfW<http://www.dgfw.info/en/>). We invite open topic studies in the form of Registered Reports<https://osf.io/rr/> that employ 2021 GLES survey data to examine relevant questions in times of political change and crises surrounding the German federal election. The Special Issue will be published in English. Abstract submission (max. 500 words): July 12, 2021 via e-mail (gles-osc@gesis.org<mailto:gles-osc@gesis.org>). Study materials, questionnaires and guidelines are available online.<https://gles.eu/gles-open-science-challenge-2021/downloads/> You will receive an editorial feedback within a week and will be ask to submit a Registered Report until September 25, 2021. More details can be found in the attached Call for Papers and on our website<https://gles-en.eu/gles-open-science-challenge-2021/>. This call will be of particular interest to scholars who value rigorous and transparent research and early career researchers interested in a fast publication pathway where success depends on the novelty, theoretical relevance, and conscientious execution of a research idea rather than the eventual empirical results. If you have any questions or informal inquiries, please do not hesitate to contact me or the Editorial Team<mailto:gles-osc@gesis.org>. Best Regards on behalf of the Editorial Team, Anne-Kathrin Stroppe ______________________________________________ Anne-Kathrin Stroppe, M.A. Data Curator for the German Longitudinal Election Study (GLES) Dpt. Survey Data Curation (SDC) GESIS - Leibniz Institute for the Social Sciences Unter Sachsenhausen 6-8 | 50667 Cologne Phone: +49 (0) 221 47694 488 anne-kathrin.stroppe@gesis.org<mailto:anne-kathrin.stroppe@gesis.org> www.gesis.org<http://www.gesis.org/>