1 Department of Experimental-Clinical and Health Psychology, Ghent University, Ghent, Belgium Research Institute for Psychology & Health, Utrecht, The Netherlands Department of Psychology, University of British Columbia, Vancouver, BC, Canada Academic Unit of Psychiatry & Behavioural Sciences, University of Leeds, Leeds, UK Department of Psychology, University of Montreal, Quebec, Canada Sub-Department of Clinical Health Psychology, University College London, London, UK Department of Psychology, Wayne State University, Detroit, MI, USA.