Abstract:
This research aimed to study the effects of credibility on infomercial advertising and trust in media and the credibility of infomercial advertising combined with trust in media related to purchasing intention on healthy products of workingaged people in Bangkok. This is a quantitative research using a questionnaire to collect data from 400 consumers who know about infomercial advertising and used to buy a healthy product and live in Bangkok province. A computer package program was used for data analysis. The multiple linear regression analysis is used for testing a hypothesis at 5% statistically significant.
The result showed that a factor that has a positive effect on to purchase intention of healthy products of working-aged people in Bangkok, there are 3 factors of credibility in infomercial advertising which are believable, truthful, and realistic. However, truthful of credibility in infomercial advertising combined with trust in media also has a positive effect with a statistically significant