“…One issue is that an absolute label, such as medium, may have a different meaning for different people (Chen et al, 2014;Pei and Zheng, 2017;Rodríguez et al, 2013;. Another issue is that an absolute label, such as high, could have both a positive and negative meaning depending of the particular criteria considered (Phong et al, 2011;Rodríguez et al, 2016). Based on these issues, the concept of relative linguistic labels was applied in this study.…”