Abstract:
The purpose of this research was to study 1) the personal factors, 2) product marketing mix, and 3) the quality of service factors, all of which affected the decision making process of choosing tire service centers in Chachoengsao Province. This study was a quantitative research. Most of the sample group was female customers, aged between 25-30 years. To their marital status, they were married/ or they were living together. They had a bachelor's degree. The company's revenue was between 20,001-30,000 baht. For marketing mix factors, 7P's of services were at a high level, and when each aspect was considered, every aspect was at a high level. Service quality aspects consisted of promotion, place, people/employees/process, price, product and presentation. To the service quality aspects, every aspect was at a high level. The aspects were as follows: Empathy-The customer felt that the tire service center provided service attentively, ResponsivenessThe customer felt that they were responded carefully, Tangibles - The customer perceived the Tool Availability. Reliability-Customers felt they trusted the service. Assurance-Customers felt sure about the service. The overall decision-making process was at a high level. When considering each aspect, the researcher found that all aspects were at a high level. The aspects included searches for information, methodology for evaluating alternatives, and evaluating after the service, decision to buy, and needs or problems. To the hypothesis testing to see whether different factors differently affected the decision making process of the tire service center in Chachoengsao Province, it was found that customers with different gender, marital status and occupation had no difference in decision making on service selection. However, customers with different age, education, and average monthly income had difference in decision making process of the tire service center in Chachoengsao Province. It was found that market mix factors, consisting of place, personnel/ staff, and the presentations, had influence on the decision-making process. The service quality factors including Reliabilitythe customer trusted the service, Tangibles-Customers saw the tool's availability, Responsiveness-Customers felt they were responded. All of these had influence on the decision-making process of the tire service center in Chachoengsao Province