1. Faculty of Humanities, Education and Social Sciences, University of Luxembourg, Esch-sur-Alzette, Luxembourg
2. Faculty of Psychology, Speech Therapy and Education Sciences, University of Liège, Liège, Belgium
3. Students Affairs Deparment, University of Liège, Liège, Belgium
4. Teaching and Research Unit in Special Education, University of Teacher Education of State of Vaud, Lausanne, Switzerland
5. Department of Psychology, University of Lorraine, Nancy, France