Abstract
This paper provides an overview of the author's studies of subjective evaluation measurements using visual analog scales (VAS). They have previously conducted studies into subjective evaluation measurement using VAS and Likert Scale, the correlation between subjective evaluation measurements and biosignal analysis values, and visualizing methods for subjective evaluation values. As a result, the usefulness of subjective evaluation measurement using VAS has been demonstrated. Meanwhile, the authors have also proposed a visualizing method for trends in small samples. Based on these results, it will be important to conduct studies into subjective valuation measurement using VAS in a wider range of fields.
