The degree of Doctor of Philosophy (PhD) is the University's principal research degree for graduate students and is available in all faculties and departments. A Cambridge PhD is intellectually demanding and you will need to have a high level of attainment and motivation to pursue this programme of advanced study and research. In most faculties a candidate is expected to have completed one year of postgraduate study, normally on a research preparation masters course, prior to starting a PhD.
Completion normally requires three or four years of full-time study, or at least five years of part-time study, including a probationary period. Terms of research are normally consecutive and, for full-time students, require residency in Cambridge. Not all departments offer part-time research degrees (see Part-time study).
Various routes to the PhD are possible and, if you are made an offer of admission, it will be made clear whether you are required to study for a masters degree or certificate in the first instance, or will be admitted directly to the probationary year for the PhD. You are registered for the PhD only after a satisfactory progress assessment at the end of the probationary year (five terms for part-time degrees). The assessment is designed also to focus your mind on the stages necessary for completion of your research within the normal time limit and to address any structural problems that have arisen during the first year. The progress examination/assessment at the end of year one is a substantial academic hurdle and continuation to the PhD is not automatic.
During your PhD, your effort will be focused on writing a dissertation of up to 80,000 words. This must represent a significant contribution to learning, for example through the discovery of new knowledge, the connection of previously unrelated facts, the development of a new theory, or the revision of older views, and must take account of previously published work on the subject. Many Cambridge dissertations go on to form the basis of significant publications.
Although you will spend long hours working independently, your department and college will support you in different ways. You are also able to attend regular seminars in your subject area, might be involved in teaching, perhaps giving seminars or supervising, and can play an integral part in the social life of your department and college.