Judith Hangartner is Professor at the University of Teacher Education, Bern, Switzerland. Héloïse Durler is Associate Professor of Sociology at the University of Teacher Education, Lausanne, Switzerland. Regula Fankhauser is Professor at the University of Teacher Education, Bern, Switzerland. Crispin Girinshuti is Lecturer and Scientific Collaborator at the University of Teacher Education, Lausanne, Switzerland.