When I was in high school, the C- students always came out thinking they aced the test. Under-performers commonly overestimate their ability, something known as the Dunning-Kruger Effect. http://onlinelibrary.wiley.com/doi/10.1111/joa.12072/abstract The ‘unskilled and unaware’ effect is linear in a real-world setting Self-assessment ability in medical students and practising physicians is generally poor, yet essential for academic…