1. Division of Psychiatry University College London London UK
2. Council for Disabled Children National Children's Bureau London UK
3. Centre for Educational Development, Appraisal, and Research (CEDAR) University of Warwick Coventry UK
4. Department of Psychiatry Monash University Clayton Victoria Australia
5. Developmental and Educational Psychology Unit, Institute of Psychology, Faculty of Social and Behavioural Sciences Leiden University Leiden The Netherlands
6. School of Psychology, Faculty of Health Deakin University Melbourne Victoria Australia
7. Tavistock and Portman NHS Foundation Trust London UK