A Study of the Distribution Between Visual Analog Scale and Likert Scale for Subjective Evaluation of “Like-Dislike“

This paper describes consideration of the distribution between visual analog scale (VAS) and Likert scale (LS) for the subjective evalua tion of “like-dislike”. The data are collected from 58 participants., 29 participants are invited to answer VAS questionnaires., and the other 29 participants are also invited to answer LS questionnaires. To apply the same evaluation criteria., VAS data and LS data are transformed to ratio scale values (i.e.., 0.00 to 1.00)., and the subjective evaluation distributions based on LS and VAS are calculated and visualized (descriptive statistics values., histograms., boxplots., and plots using a 95% confidence interval). As a result., it is possible to express detailed results by using VAS rather than LS for questions that ask about the intensity of like or dislike. On the other hand., for the trend question of like or dislike., the use of LS or VAS yields similar results (in other words., if the question asks for trends., we can choose either VAS or LS). That is., these results are suggested to be similar results as the author”s previous studies. However., these suggestions are derived from a limited example., and it is necessary to apply this method to questions with various adjective pairs (e.g.., “bright-dark”.,” slow-fast”., and so on) and fields (such as education., music listening., image viewing., etc.) to obtain reliable conclusions.