Grades Grade Requirements • No grade below C is acceptable for a course listed on the Program of Study. • Doctoral students are required to earn at least a B in MIBO 8600 and 8610. Doctoral students must retake those courses in the MIBO 8600/8610 series for which they fail to meet this minimum. Failure to earn at least a B upon taking the course(s) a second time will result in the student's leaving the program or switching to a Master's degree objective. • Only S and U grades can be given for the thesis/dissertation course, MIBO 7300M or 9300D; an I grade (incomplete) is not acceptable. Research courses, MIBO 7000M and MIBO 9000D, are graded on an S/U basis (no letter grades). • An I grade (incomplete) becomes an F at the end of the third semester (the summer term counts as a semester) in residence if not changed by the professor before the deadline. • A minimum GPA of 3.0 must be maintained for the courses on the Program of Study and also for all graduate courses on the transcript. A graduate student with a cumulative graduate course average below 3.0 for two consecutive semesters goes on academic probation. He or she must obtain a 3.0 or higher semester average each semester that the cumulative average remains below 3.0. Probation ends when the cumulative average becomes 3.0 or higher. A graduate student who makes less than a 3.0 semester average while on probation is dismissed from the Graduate School. • When a student repeats a course, the last grade is used to calculate the cumulative average.