On average, people tend to rate themselves better than most in disciplines ranging from health, leadership skills, ethics and more. Those with the least ability often overrate their skills to the greatest extent.  People who are measurably poor at logical reasoning, grammar, financial knowledge, math and emotional intelligence tend to rate their expertise almost as favourably as actual experts do.

We judge ourselves as better than others

Knowing how competent and skilled we are against other people helps us figure out when we can go ahead with our decisions or when we instead need to look for advice.  But psychological research suggests that we frequently overestimate our own abilities. This is known as the Dunning-Kruger effect. It explains why over 100 studies reveal that people show illusory superiority.

Knowing how your skills measure up

People lacking knowledge and skill in certain areas suffer a double curse.  <ol><li>They make mistakes and reach poor decisions</li><li>Those same knowledge gaps prevent them from noticing their errors. </li></ol>In other words, poor performers won't notice how bad they are doing. For example,  a study showed that 25% of teams in a college debate tournament lost nearly four out of every five matches, but thought they were winning almost 60%.

People lacking knowledge suffer a double curse

<ol><li>Ask for feedback from other people and consider it, even if you find it hard to hear.</li><li>Keep learning. The more knowledgeable we become the more we will know how competent we are.</li></ol>

How to know how good you really are

The Dunning-Kruger effect isn't about an ego blinding us to our weaknesses. Once people can spot their deficits, they usually will admit to them. That is why people with moderate experience often have less confidence in their abilities. They know there's a lot they don't know. Experts tend to make a different mistake. They tend to be aware of their knowledge and assume everyone else is knowledgeable too. As a result, they don't see how unusual their abilities are.

The Dunning-Kruger effect is invisible to those experiencing it

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/why-incompetent-people-think-they-re-amazing-david-dunning How good are you with money? What about reading people’s emotions? How healthy are you, compared to other people you know? Knowing how our skills stack up against others is useful in many ways. But psychological research suggests that we’re not very good at evaluating ourselves accurately. In fact, we frequently overestimate our own abilities. David Dunning describes the Dunning-Kruger effect. Lesson by David Dunning, directed by Wednesday Studio, music and sound by Tom Drew. Thank you so much to our patrons for your support! Without you this video would not be possible! Juan, Jordan Tang, Kent Logan, Alexandra Panzer, Jen, Ellen Spertus, Ryan Mehendale, Mary Sawyer, Scott Gass, Ruth Fang, Mayank Kaul, Hazel Lam, Tan YH, Be Owusu, Samuel Doerle, David Rosario, Katie Winchester, Michel Reyes, Dominik Kugelmann, Siamak H, Stephen A. Wilson, Manav Parmar, Jhiya Brooks, David Lucsanyi, Querida Owens.

Understand yourself and those around you.

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Check out our Patreon page: https://www.patreon.com/teded

View full lesson: https://ed.ted.com/lessons/why-incompetent-people-think-they-re-amazing-david-dunning

How good are you with money? What about reading people’s emotions? How healthy are you, compared to other people you know? Knowing how our skills stack up against others is useful in many ways. But psychological research suggests that we’re not very good at evaluating ourselves accurately. In fact, we frequently overestimate our own abilities. David Dunning describes the Dunning-Kruger effect. 

Lesson by David Dunning, directed by Wednesday Studio, music and sound by Tom Drew. 

Thank you so much to our patrons for your support! Without you this video would not be possible!
Juan, Jordan Tang, Kent Logan, Alexandra Panzer, Jen, Ellen Spertus, Ryan Mehendale, Mary Sawyer, Scott Gass, Ruth Fang, Mayank Kaul, Hazel Lam, Tan YH, Be Owusu, Samuel Doerle, David Rosario, Katie Winchester, Michel Reyes, Dominik Kugelmann, Siamak H, Stephen A. Wilson, Manav Parmar, Jhiya Brooks, David Lucsanyi, Querida Owens.

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The Dunning-Kruger effect is invisible to those experiencing it

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