The degree of Doctor of Philosophy (PhD) signifies that the holder has undertaken a substantial piece of original research which has been conducted and reported by the holder under proper academic supervision and in a research environment.
The PhD thesis demonstrates authority in the candidate’s field and shows evidence of command of knowledge in relevant fields. It shows that the candidate has a thorough grasp of the appropriate methodological techniques and an awareness of their limitations. The thesis also makes a distinct contribution to knowledge. Its contribution to knowledge rests on originality of approach and / or interpretation of the findings and, in some cases, the discovery of new facts. The thesis demonstrates an ability to communicate research findings effectively in the professional arena and in an international context. It is a careful, rigorous and sustained piece of work.
The normal length of a PhD thesis is 80,000 words.