<a href="mailto:[email protected]?subject=Revision:%20Concepts/Dunning–Kruger Effect%20-%2020260302211845" style="border:1px solid #555; padding:4px 12px; border-radius:4px; color:#a89ee8; text-decoration:none; font-size:0.9em; background-color:#2a2a2a;">📩 Submit a Revision/Addition</a> ### 🧠 What is the Dunning–Kruger Effect? The **Dunning–Kruger effect** is a psychological phenomenon where people who are **incompetent at something** tend to **overestimate their own skill or knowledge**, while those who are **actually competent** often **underestimate themselves**. It was first described in 1999 by social psychologists **David Dunning and Justin Kruger**. In a series of studies, they found that people who performed poorly on logic, grammar, and humor tests consistently **rated their performance far above average** — not because they were lying, but because they **lacked the self-awareness to recognize their own mistakes**. --- ### 🚨 Why does it happen? - To assess your own competence accurately, you need at least **some understanding of the topic**. - Ironically, people who lack that understanding also **lack the insight to realize what they don’t know**. - This results in **overconfidence**. - Meanwhile, more knowledgeable people are aware of the complexity and gaps in their understanding — so they tend to **judge themselves more harshly**. --- ### 📊 Classic shape of the effect: Often visualized as a graph: - A sharp spike in confidence early on ("Mount Stupid") - Followed by a drop as awareness increases - Then a gradual rise in confidence as true competence is developed --- ### 🧠 TL;DR > People with **low skills** often think they’re great. > People with **high skills** often think they’re average. > Self-awareness and expertise grow together — but not at the same speed.