Andrew Rogers is a Consultant Clinical and Forensic Psychologist and Visiting Associate at the Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK. Joel Harvey is a Lecturer in Clinical Psychology at the Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK. Heather Law is a research trial manager at the Psychosis Research Unit at Greater Manchester West Mental Health NHS Foundation Trust, and an Honorary Research Fellow in the School of Psychological Sciences, at the University of Manchester, UK.