This study aims was to designing a Model of personality trait and Entrepreneurship motivation on Medium and Small Businesses starting up with the role of mediation Awareness of entrepreneurship. The research was conducted by descriptive-correlation method and in the field. The statistical population of the study consisted of physical education students of Khorasan Razavi province. The statistical sample of the research was calculated based on Krejcie and Morgan table of 384 people and a questionnaire was distributed among them. To collect data, we use standard questionnaires personality trait, Entrepreneurship motivation, Medium and Small Businesses starting up & Awareness of entrepreneurship. The reliability of questionnaires, respectively, 0/84, 0/78, 0/86 and 0/76 respectively. For the test a research hypotheses, structural equation modeling based on partial least squares method using statistical software PLS. The result showed there is a significant impact of personality trait on Medium and Small Businesses starting up & Awareness of entrepreneurship, Entrepreneurship motivation on Medium and Small Businesses starting up & Awareness of entrepreneurship, also there is a significant impact of Awareness of entrepreneurship on Medium and Small Businesses starting up. It seems Awareness of entrepreneurship, personality trait & Entrepreneurship motivation of students to factor in is the Medium and Small Businesses starting up.

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