Why incompetent people often think they're experts
The Dunning-Kruger Effect explains why individuals with low competence often surprisingly overestimate their own abilities, while highly skilled people tend to underestimate theirs.
The Dunning-Kruger Effect reveals a fascinating cognitive bias: people with limited skills often overestimate their abilities, while true experts tend to underestimate theirs. Psychologists Justin Kruger and David Dunning identified this in a 1999 study. They found that low-performing participants in tasks like grammar and logic rated themselves far above average, lacking the self-awareness to spot their own errors. This universal flaw in self-perception explains persistent overconfidence in many fields, from medicine to politics. Recognizing this effect highlights the importance of objective feedback and education to build accurate self-awareness, ultimately fostering better learning and collaboration.