课程要求：humanities (ex. anthropology, communication studies, cultural studies, history, etc.), social sciences (sociology, psychology, political science, economics, etc.), behavioral sciences (psychology, genetics, etc.), biological sciences (biology, zoology, ecology, etc.), or natural sciences (astronomy, biology, physics, chemistry, etc.). Please note, you do not need a degree in one of these areas, but must have a collective 18 units among all areas in order to apply. 申请链接：http://sowkweb.usc.edu/master-of-social-work/msw-degree/dual-degrees/phd-in-social-work