*3.2. WASPAS-SVNS for the Calculation of Subjective Weights*

The uncertainty caused by the psychometric features of the VAS scales is going to be reduced, employing the Weighted Aggregated Sum Product Assessment extended by single-valued neutrosophic sets (WASPAS-SVNS). WASPAS was initially presented by Zavadskas et al. [53] and later extended by single-valued neutrosophic sets (WASPAS-SVNS) that are the extension of the intuitionistic fuzzy sets. WASPAS and its modifications are widely used for various multicriteria decision-making tasks [29,54–56]. We believe that WASPAS-SVNS also might be valuable to deal with the uncertainty caused by the end aversion and the positive skew of the VAS based preference elicitation. To the best of our knowledge, there is not any research where WASPAS would be applied in the criteria weighting process.
