李克特式量表是社会科学研究中常用的计分方式,但也有为数不少的研究采用模糊语言量化方式。为了了解模糊语言的计分性质,文中以梯形模糊数为例,对李克特式量表与模糊语言的计分误差进行了比较。仿真结果表明,模糊语言量表计分误差小于李克特式量表,从而为模糊语言量表的应用者以及相关的研究者提供了参考。
The Likert scale is being used widely for the questionnaire design in social science research, but the fuzzy linguistic measure is applied in many researches. In this research, the score difference between the fuzzy linguistic questionnaire and the Likert scale is compared by the simulation of using normal fuzzy number in order to understand the score feature of the fuzzy linguistic questionnaire. The research indicates that the score difference of human being' s latent trait by the method of fuzzy linguistic questionnaire is smaller than that by the Likert scale. So this result offers a reference for the user of fuzzy linguistic questionnaire and the correlative investigators.