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, 8610, 8630, 8640. Doctoral students must retake those courses in the MIBO 8600, 8610, 8620, 8630, 8640 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.