The Dunning-Kruger Effect: The least skilled are often the most confident

The Dunning-Kruger Effect: The least skilled are often the most confident The Dunning-Kruger Effect describes a pervasive cognitive bias where individuals with limited knowledge or skill in a specific area tend to significantly overestimate their own competence. This happens because the very skills required to excel in a field—such as critical thinking and nuanced judgment—are the same ones needed to evaluate one's own performance accurately. Without those skills, people suffer a "double burden": they make errors and lack the metacognitive ability to recognize them, leading to a persistent illusion of superiority that can hinder both personal and professional growth. Interestingly, the path to true mastery often begins with a sharp decline in confidence. As people gain more knowledge, they start to grasp the sheer vastness and complexity of the subject matter, leading them to realize how much they actually have left to learn. This dip is a sign of psychological progress, marking the transition from blissful ignorance to informed awareness. Eventually, as genuine expertise is developed, confidence rises again, but it is now grounded in reality rather than a misunderstanding of the task at hand. source: Kruger, J., & Dunning, D. (1999). Unskilled and unaware of it: how difficulties in recognizing one's own incompetence lead to inflated self-assessments. Journal of Personality and Social Psychology, 77(6), 1121-1134.