Graduate work at the University of Pennsylvania is conducted through graduate groups formed according to different areas of study. These groups administer programs leading to the AM and PhD degrees. Those seeking a graduate degree in Sociology should apply to the Graduate Group in Sociology. Sociology students earn their MA on the way to the PhD. There is no terminal Master's degree program. It is possible to earn a joint Ph.D. in Sociology and another discipline by being admitted to and satisfying the requirements of two Ph.D. programs and writing a single dissertation. Currently, students are enrolled in joint degrees with Demography, Education, Communications, and Africana Studies. Students seeking a joint Ph.D. combining Sociology with another program must be admitted in that program (as well as Sociology), admittance to the second program may occur after admission to the Sociology program.