哲学博士学位是研究型的，需要论文。课程要求学士学位以外的学生至少需要90个学期的学分。所有博士课程都必须至少包括五门统计学和研究方法方面的高级研究生课程。课程工作必须在五年内完成。博士候选人完成口试和笔试的初步考试和独立研究，最终形成论文。具体课程要求由学生的主要教授和/或委员会决定。
The Doctor of Philosophy degree is research-oriented and requires a dissertation. Programs require a minimum of 90 semester hours of graduate credit beyond the bachelor's. All doctoral programs must include at least five advanced graduate courses in statistics and research methodology. Course work must be completed within five years. Doctoral candidates complete oral and written preliminary examinations and independent research which culminates in a dissertation. Specific course requirements to be determined with the student's major professor and/ or committee.