“…QOL is based on subjective measures, referring to personal expectations and subjective experiences (Bonham et al, 2004;Bramston et al, 2005;Brown et al, 2009;Claes et al, 2010;Cummins, 2005;Phillips, 2006;Schalock & Verdugo, 2002;Schalock et al, , 2007Schalock, 2004;Skevington et al, 2004;Van Loon et al, 2009;Ventegodt, Merrick, & Andersen, 2003;Verdugo et al, 2005;Wang et al, 2010;WHO Group, 1998a). According to the World Health Organization (WHO), QOL can be understood as the satisfaction, the perception, and interpretation by each individual assigned to the multiple facets of his/her own life (Skevington et al, 2004;WHO Group, 1998a).…”