This research aims to study the factors that affect the decision to place private vehicle inspections (third). In border collision phetchabun district Samples used in this study. The total number of 420 people, using the questionnaire as a tool to collect information. The statistics based on the data analysis include percentage frequency values, average, standard deviation. An analysis of the differences of the average (Independent Sample t-test), analysis of variance (One-way ANOVA) one way, and multiple regression analysis (Multiple Linear Regression) that the statistical significance level 0.05.
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