Fuzzy composite score and situational judgement test: An integrated operation perspective of scoring

The aim of this chapter is to propose a mechanism based on Fuzzy Composite Score (FCS) to integrate multiple scoring methods for Situational Judgment Test (SJT). The proposed operating mechanism, besides dealing with various scale types, can also provide fuzzy space for linguistic judgment, allowing researchers to compare the difference of SJT score under different degrees of linguistic vagueness. Based on current SJT scoring method, this study simulated sample responses for four types of different scale to explain FCS operation. Also, the comparison between five different degrees of vagueness was executed in this fuzzy frame. Analysis of results concludes that: (1) Proposed FCS operation can integrate multiple scoring methods and provide subjects and experts advanced adjustment of linguistic vagueness to more closely match authentic cognition; (2) As the degree of linguistic vagueness increases, the diversity in FCS between high score and low score samples was reduced, but moderated by different SJT scoring methods. To conclude, practical and academic points of view about FCS of SJT were discussed for future study.