The type of assessment technique is Dr. Sebastian employing is called unstructured interview.
An Unstructured interviews is one where one do not use any group of questions but the interviewer often asks a form of open-ended questions that is due to the specific research topic that is under discussion.
It is one where the interviewer do try to let the interview move towards a form of natural conversation. The interviewer often change his or her questions to merge or link with the candidate's experiences.
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