1. DSDC Wales Research Centre, School of Health Sciences, Bangor University, Ardudwy, Normal Site, Bangor LL57 2PZ, UK
2. Faculty of Education and Professional Studies, School of Social Work, Nipissing University, North Bay, ON P1B 8L7, Canada
3. Dementia Research Centre, Queen Square Institute of Neurology, University College London (UCL), London WC1N 3AR, UK
4. Department of Clinical, Educational and Health Psychology, University College London (UCL), London WC1E 6BT, UK