Psychology
The Dunning-Kruger Effect in Self-Assessment
Quick fact
In a classic study, students who scored in the bottom quartile on a test estimated that they had scored in the top quartile, while those who scored in the top quartile underestimated their ranking.
Why this is interesting
Have you ever noticed that the least skilled person in the room is often the most confident? Why is it that experts are often the most doubtful?