[brainwipe]

Exams are a poor measure of proficiency. Proficiency is gained by doing and stretching a skill over time. You can measure that in small increments than a periodic exam. At the end of a period, a student would have a body of work to demonstrate proficiency rather than relying on a single day.

When I taught at university there was a disparity between exam grades and the physical body of work they had submitted over the years. You'd see the grade and be shocked the did so badly. The grade reflected proficiency in examinations, not in the subject.