1. School of Psychology, University of Sheffield, ICOSS Building, 219 Portobello, Sheffield, S1 4DP, United Kingdom
2. Grounded Research, RDaSH NHS Foundation Trust, Doncaster, United Kingdom
3. Clinical and Applied Psychology Unit, School of Psychology, University of Sheffield, Sheffield, United Kingdom
4. Clinical Psychology and Psychotherapy, Department of Psychology, University of Trier, Trier, Germany