英文摘要
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Purposes: To study the purchase intentions of healthy food of people by the theory of planned behavior, and to explore the influences of health values, social subjective norms, and perceived behavioral control on purchase intentions and behaviors. Materials and Methods: The subjects were people aged 18 to 65. The online convenience sampling was conducted, and online questionnaires were used to distribute them on social platforms. The distribution by region weighting was 353 (47.4%) in the northern region, 191 (25.7%) in the central region, and 231 (29.8%) in the southern region, with a total sampling rate of 0.41%%. The questionnaire includes 7 questions on demographic data, 11 questions on health value, 7 questions on the social subjective norm, 4 questions on perceived behavioral control, 7 questions on purchase intention, and 11 questions on purchasing behavior. The total reliability of the scale is Cronbach 0.75. Results and Discussion: There were 460 (59.3%) females, 422 (54.5%) from 18 to 24 years old, 616 (79.5%) from junior college/university, 353 (45.6%) from the north and average monthly income there were 420 (54.2%) below NTD 30,000. The mean (standard deviation) of the dimensions of health values, perceived behavioral control, social subjective norm and purchase intention were 3.77±0.87, 3.65±0.88, 3.09±0.99, and 3.68±0.90, respectively. The most popular health products purchased by respondents are nutritional supplements and anti-fatigue health food, accounting for 49.8% and 37.1% respectively. In the prediction of purchase intention, the purchase intention of respondents will be affected by health value, perceived behavioral control, and social subjective norms at the same time, and the three can significantly predict the purchase intention of respondents (p<.05). The respondents' purchase intention had a complete mediating effect on the perceived behavior control over the purchase behavior of healthy food. Suggestions: For the 18 to 24-year-old group, strengthen their self-health values and understand that prevention is better than cure, because good physical health starts at a young age.
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