1. Institute of Psychology, Department of Rehabilitation Psychology and Psychotherapy, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
2. Institute for Sports and Sport Science, Department of Sports Psychology, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
3. Institute of Psychology and Education, Department of Research Methods, University of Ulm, Ulm, Germany
4. Institute of Psychology, Department of Clinical Psychology and Psychotherapy, University of Erlangen-Nuremberg, Erlangen, Germany
5. Medical Center, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University of Freiburg, Freiburg, Germany
6. Department of Clinical, Neuro and Developmental Psychology, Vrije University Amsterdam, Amsterdam, the Netherlands
7. Institute of Psychology and Education, Department of Clinical Psychology and Psychotherapy, University of Ulm, Ulm, Germany