Dr. Jürgen Budde is a professor of educational science at the Institute for Educational Science at Europa University Flensburg. Dr. Drorit Lengyel is a professor of educational science at the Faculty of Educational Science at the University of Hamburg. Caroline Böning is a research associate at the Institute for German as a Second and Foreign Language at the University of Duisburg-Essen. Carolina Claus is research associates at the Institute for Educational Science at Humboldt University Berlin Nora Weuster is a teacher in Kiel at a vocational school specialising in social pedagogy Katharina Doden is a teacher in Hamburg, specializing in physical education and technology/working studies at the primary and lower secondary levels. Dr. Tobias Schroedler is a professor at the Faculty of Humanities at the University of Duisburg-Essen.