Interviewers know that candidates may be nervous. They are not trying to catch you out, but to challenge you to think for yourself. They wish to establish that you have an enthusiasm for and understanding of your subject and that you are open-minded and willing to engage with new ideas. Often there are no right or wrong answers to the questions, and the way you arrive at an answer may be of greater interest than the answer itself. Interviewers may also ask about your wider interests.
Candidates often ask how to prepare themselves for interview.
It can, however, be helpful to have some experience of talking to a stranger about your work and your interests, and to get some practice in expressing your ideas and opinions as if at an interview. Equally, we would encourage you to read critically about your subject, outside the confines of the Advanced GCE syllabus. If you are applying for a subject that you have not been taught at this level, it is particularly important that you have read enough to know what it will entail.