Effective restaurant rating scale development and a mystery shopper evaluation approach

Dining is a major attraction for tourists visiting Taiwan. In 2008, the Taipei City Government commissioned a project to produce a list of recommended restaurants in Taipei for tourists. To facilitate the selection process, we developed a restaurant rating scale using a mystery shopper approach. This study entailed 20 questions that covered all elements of the consumers’ dining experience in a table-service restaurant setting, as well as a comprehensive mystery shopper training program to ensure consistency of quality in the evaluation process. This research involved the top 500 restaurants in Taipei. The findings revealed that our rating scale achieves internal consistency, validity and model fit. This study provided an important tool for further industrial applications and research opportunities. Further, this study proposes future research directions.