Does OU require an admissions exam such as the GRE or MAT?
No. Admission to OU is based on your last 60 hours of letter-graded undergraduate coursework, or, if you have already taken graduate work, it is based on 12 or more hours of letter-graded graduate work. In cases of a low GPA, exceptional scores on the GRE or MAT may be used as one piece of supplemental evidence of your ability to do graduate-level work.
