Which degree typically requires the greatest amount of coursework after a bachelor's degree?

The doctoral degree typically requires the greatest amount of coursework after a bachelor's degree because it represents the highest level of academic achievement in a specific field of study. Doctoral programs generally involve extensive coursework, comprehensive exams, and original research leading to a dissertation. This process can take several additional years beyond a master's degree to complete, and it often includes advanced seminars and specialized topics in the field.

In contrast, while a master's degree also involves significant coursework, it usually requires less time and fewer credit hours than a doctoral program. Diplomas and certificates, on the other hand, are generally designed to provide targeted education and skills in a specific area and typically require much less time and coursework compared to both master's and doctoral degrees.