Medical Students who are deciding which specialty to enter sometimes do not choose the one they actually prefer. The purposes of this study were to compare specialty preferences of students with their choices, as well as to identify the factors on which decisions about entering family medicine are based. Of North Carolina's 429 third-year medical students, 59% responded in 1985 to a career preferences questionnaire that assessed the process of specialty decision making. Internal medicine was the most frequently chosen specialty when another was preferred. The frequency with which family practice was the career choice was affected little by differences between preferences and choices. Six factors were identified, with the curriculum as the major factor separating those who chose family practice from those who chose other primary care or non-primary care specialties. Based on these results, six suggestions are offered for medical school administrators and faculty desiring to increase the number of students selecting family practice.