*3.2. Questionnaire Design*

The questionnaire consists of four parts. The first part is about the introduction of innovative child safety seats. The second part is the population and tourism information questionnaire, which investigated the demographic data, annual family income, and family travel frequency. The third part is the DSI scale, which is used to measure specific categories of consumer innovation [63,80,107]. The fourth part is the questionnaire TCV model. The scale was created by the TC.

The TCV model includes four subscales: perceived usefulness value, perceived social value, perceived hedonic value, and perceived novelty value [34,108–111]. All scales are 7-point Likert scales with 28 questions. According to the suggestion of bilingual professor Zhao Mei [112], the scale was first translated into Chinese according to the language expression, cultural background, and customs, and then it was translated back to English for proofreading with the original scale. Table A1 shows the questions for the questionnaire in Appendix A.
