Useful Information: U.S. System of Higher Education
What is a Doctoral Degree
Doctoral Degrees include, for example, the Doctor of Philosophy (Ph.D.) in the arts and sciences, and the Doctor of Education (Ed.D.). Doctoral programs almost always require original research leading to the defense of a Doctoral Dissertation. Students may enter some programs with the equivalent of a U.S. Bachelor's Degree and take courses for one to two years before beginning dissertation research. In this case, a student may or may not earn a Master's Degree upon completion of course work. Other Doctoral programs begin after the Master's Degree is achieved with little, if any, course work required. Some programs require that students pass a comprehensive oral and/or written examination to attain candidacy for the degree.