A very good book “Learned Optimism” talked about this phenomenon. Pessimists would guess the score they got on a test and be pretty spot on, optimists would gu

A very good book “Learned Optimism” talked about this phenomenon. Pessimists would guess the score they got on a test and be pretty spot on, optimists would guess they did better than they did, yet the scores of the optimist on average were higher than that of the pessimist.