| Summary: | 碩士 === 南臺科技大學 === 創新產品設計系 === 107 === This study explored the effect of three different shopping modes, namely shopping on one’s own, shopping with a companion, and shopping using a shopping aid device, on the efficiency of in-store shopping and compared the behavioral difference of these three shopping modes using in-depth interviews with visually impaired people, their companions, and sales agents. The goal is to understand the current condition of shopping of visually impaired people and their related needs. Lastly, the researchers of this study designed and developed the prototype of a smart wearable device for reading product information that can be used by visually impaired people for shopping.
The study participants were six students, males and females, from Huei-Ming School and Home for Blind Children. For all participants, their correct task performance rate and task performance time were recorded and analyzed by one-way repeated measure ANOVA to determine if shopping efficiency is affected by the mode of shopping. System Usability Scale (SUS) was applied to determine the usable score of the wearable device of this study.
The study results are as follows: 1) When comparing the mean of the correct task performance rate between the three groups (modes), the difference was statistically significant. From the post-hoc comparison, the correct rate of using a wearable device for shopping (95%) was significantly higher than of shopping on one’s own (75%) and shopping with a companion (75%), and moreover, there was no difference between shopping on one's own and shopping with a companion. 2) For the task performance time, no significant difference was found among the variables. 3) The average SUS score was 74.2 (grade C) and the percentile rank was 71. This finding indicates that the wearable device developed in this study is easy to understand and easy to use. The participants showed a short learning curve and a high use intention.
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