Usage of Subjective Scales in Accessibility Research
Shari Trewin, Diogo Marques, Tiago Guerreiro · 2015 · ASSETS '15: Proceedings of the 17th International ACM SIGACCESS Conference on Computers & Accessibility
This methodological paper investigates whether positive response bias affects subjective ratings in accessibility research—a critical concern given that Likert-type items are widely used to evaluate assistive technologies. The authors pursued two complementary approaches: a…
research methodology · Likert scales · response bias · usability testing · accessibility research