Graduates of the University of Southern California’s online master’s degree in social work filed a class-action lawsuit Thursday, alleging the institution misrepresented the program as on par with an on-campus version. They allege the university presented the online program as “exactly the same” as the in-person program, even though the online version was outsourced entirely to 2U, a for-profit education technology company. Both programs charged the same tuition and fees — in excess of $100,000.