A doctoral thesis describing original research is required to earn the Ph.D. degree. The thesis will be presented to a Thesis Examination Committee that is usually composed of the same members as the Thesis Advisory Committee. A formal thesis defense is scheduled no earlier than one week after distribution of the thesis proposal. This defense consists of a public seminar followed by a closed session with the Thesis Examination Committee. A Final Dissertation Defense form documenting the successful defense must be filed with the GSBS office.