1. Department of Psychology, Umeå University, Umeå, Sweden
2. Department of Educational Studies, Karlstad University, Karlstad, Sweden
3. Department of Coaching and Psychology, Norwegian School of Sport Science, Oslo, Norway
4. School of Science, Technology and Health, York St John University, York, United Kingdom
5. School of Health Sciences, School of Örebro University, Örebro, Sweden
6. Faculty of Education Sciences & Sports, Vigo University, Vigo, Galicia, Spain
7. School of Informatics, University of Skövde, Skövde, Sweden