1. Department of Psychology, Umeå University, Umeå, Sweden
2. Umeå School of Sport Sciences, Umeå University, Umeå, Sweden
3. Department of Educational Studies, Karlstad University, Karlstad, Sweden
4. Department of Sport Science and Physical Education, University of Agder, Kristiansand, Norway
5. Department of Health and Sport, School of Health and Welfare, Halmstad University, Halmstad, Sweden
6. Department of Behavioral Sciences and Learning, Linköping University, Linköping, Sweden