A full list of graduate courses for which the College admits students can be found here: https://www.ox.ac.uk/admissions/graduate/colleges/regents-park-college.
Postgraduates studying on taught Master’s Courses are usually taught in a mixture of classes, lectures and individual tutorials. These are arranged by the relevant University faculty or department rather than colleges. The University also expects these students to attend classes designed to train them in methods of academic research. One- and two-year taught master’s courses usually require a combination of examinations and short dissertations.
Doctorates usually require three or four years’ study, and are awarded after the student has researched and written a longer and detailed piece of individual and original research. This is done under the supervision of an academic staff member who is a specialist in the field and who oversees and advises them on their work. Often the supervisor is a member of another college. Again, the University expects doctoral students to attend classes designed to train them in methods of academic research. Students are often admitted initially to a master’s-level course, and then progress on to doctoral status when they have satisfied their faculty that this is appropriate.