1. Department of Educational Psychology and Research on Excellence, University of Erlangen-Nuremberg, Nuremberg, Germany
2. School of Education, University of Glasgow, Glasgow, UK
3. School of Psychology, University of Glasgow, Glasgow, UK
4. Department of Basic, Development and Educational Psychology, University Autonomous of Barcelona, Barcelona, Spain
5. Department of Psychology, Pontificia Universidad Católica del Perú, Lima, Peru
6. Primary School Hildegard-von-Bingen-Anger, Munich, Germany
7. School of Education, University of Wollongong, Wollongong, Australia
8. School of Education, University of Notre Dame, Broadway, Australia