Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

Having transferred to DPhil status within your first 4 terms and having confirmed your DPhil status before or in your 9th term, you are permitted to submit a thesis for examination and in a position to apply for appointment of examiners via the ‘GSO.3’ form. Due to standard processing times, you are strongly advised to apply for the appointment of examiners at least 6 weeks before you submit your thesis.


A thesis is examined by two examiners, normally appointed by the Medical Sciences Board on recommendation of the supervisor(s). Supervisor(s) are asked to name two internal and two external examiners, indicating their first choice examiners and the reserve examiners should their first choice examiners be unable to act. The supervisor normally consults with the student to find out if there are any reasonable objections to any of the proposed examiners. The supervisor(s) will not act as examiners.

Examiners will be approved by the Medical Science Board after submission of the GSO.3 form and subsequently be formally invited by Examinations School.

‘GSO.3 ’ Form:

The application form for Appointment of Examiners can be found here. The GSO.3 form should indicate the date when the student intends to submit 2 copies of their thesis to the Examination Schools. It is recommended to submit the application form at least 6 weeks prior to the thesis submission. The form must be completed and signed by the student, the supervisor, the College and the DGS and submitted to the Medical Sciences Graduate School Office via the Graduate Studies Administrator.

Viva Voce:

After a student has submitted 2 copies of their thesis to the Examinations School, they will be sent to the examiners. A viva voce exam will be arranged by the internal examiner within one month of receiving the thesis. The viva is a formal examination, where academic dress (subfusc and gown) must be worn. Students are also advised to bring a copy of their thesis to the viva. After the viva, the examiners will make a recommendation regarding the outcome. This will be communicated to the candidate by the Medical Science Graduate School Office.

Final Submission:

The student will be sent a formal letter following the approval of their leave to supplicate detailing the requirement to submit a copy of the final thesis to the Examinations School for deposit in the Bodleian Libraries. Students are also required to submit an electronic copy of their final thesis for the Oxford University Research Archive (ORA). The deadline for depositing both the hard copy and the digital copy with the Bodleian Libraries is 5pm on the Wednesday prior to the graduation ceremony that the student intends to attend.

Further information of the appointment of examiners can be found on WebLearn