“…This approach has been widely used in different contexts decision (see, for example, Athanassopoulos and Podinovski, 1997;Awasthi, et al, 2011;Bin, et al, 2015;Chang and Yeh, 2001;Chen and Hwang, 1991;Hossain, et al, 2015;Hou and Xiao, 2015;Mir, et al, 2016;Saeida Ardakani, et al, 2015;Yeh, Deng and Chang, 2000;Zeleny, 1998;Zlateva, Velev and Raeva, 2015). These examples come from different fields of social research, however, to our knowledge is the first time that is applied to analyze the QOL.…”