Why failing med students don't get failing grades

Medical educators have long understood that good doctoring, like ducks, elephants and obscenity, is easy to recognize but difficult to quantify. And nowhere is the need to catalog those qualities more explicit, and charged, than in the third year of medical school, when students leave the lecture halls and begin to work with patients and other clinicians in specialty-based courses referred to as "clerkships." In these clerkships, students are evaluated by senior doctors and ranked on their nascent doctoring skills, with the highest-ranking students going on to the most competitive training programs and jobs.