Final answer:
In the doctoral course, the thesis refers to the dissertation, a long research paper required to earn a PhD. It is the claim or hypothesis by which the candidate attempts to answer their research question(s).
Step-by-step explanation:
The thesis in the doctoral course usually refers to the dissertation, which is a long research paper describing the research conducted as a part of the candidate's doctoral training. It is typically required to earn a PhD. The thesis is the claim or hypothesis by which the candidate attempts to answer their research question(s). It is defended before a committee of experts.