1. HAN University of Applied Sciences, Nijmegen, The Netherlands
2. Stevig, Expert Treatment Centre for People with Mild Intellectual Disabilities and Psychiatric and Behavioral Disorders, Gennep, The Netherlands
3. KenVaK, Research Centre for the Arts Therapies, Heerlen, The Netherlands
4. Research Institute of Child Development and Education, University of Amsterdam, Amsterdam, The Netherlands
5. Faculty of Healthcare, Zuyd University of Applied Sciences, Heerlen, The Netherlands
6. Faculty of Psychology and Educational Sciences, Open University, Heerlen, The Netherlands