1. Department of Psychology, Faculty of Education and Psychology, University of Jyväskylä, Jyväskylä, Finland
2. Department of Social Sciences and Philosophy, Faculty of Humanities and Social Sciences, University of Jyväskylä, Jyväskylä, Finland
3. University Hospital of Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland
4. Faculty of Health and Sport Sciences, University of Agder, Kristiansand, Norway