The aim of this survey is to evaluate the reasons behind the demand for postgraduate programs and the relationships between these reasons among disciplines. This survey was administered to 304 students randomly chosen from master with thesis and doctorate programs at the Institute of Sciences and Technology, Institute of Social Sciences and Institute of Educational Sciences of Gazi University in 2008-2009. The developed questionnaire was analyzed with SPSS15 (The statistical packet for the social sciences) packaged software. The Chi-square statistical technique was used to determine whether there were meaningful relationships between the groups, and meaningful differences were found between disciplines. The results indicated that one of the important goals of students in graduate education is the self-development in scientific terms.