Early career attrition in student affairs is a topic of interest for hiring and supervising managers, graduate preparation programs, as well as new professionals. Contributions to the growing body of research on the topic potentially informs best practices in curriculum development, hiring, onboarding, and professional development for new student affairs employees. This study involved 352 new student affairs professionals in the field's largest professional association. With Rhodes and Doering's integrated model of career change as a framework, the research study was designed to identify individual and environmental factors influencing new student affairs professionals' person-environment fit and, subsequently, career commitment. The result was an eight-factor structural equation model that included graduate curriculum, pay satisfaction, mentoring, student interaction, connection to institutional mission/vision, collegiality, and person-environment fit as independent variables, and career commitment as the dependent variable. The study suggests that these eight variables, to varying degrees, indirectly and directly influence career commitment in new student affairs professionals. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]