Debunking the Dunning-Kruger effect

[Guy Incognito]

your example does not prove your theory

To disprove the statement that something is impossible I just need to provide one counter example, which I did.

Here is another.

Andy has an IQ of 80.
Bob has an IQ of 105.
Charles has an IQ of 105.
David has an IQ of 105.
Eric has an IQ of 105.

The average (mean) IQ is 100.

80% of the group have an IQ above the average.

[hobnob]

This is not correct. It is very possible for most people to be better than average.

That depends how you define "average": mean or median. You can have most people above the mean (if there's a very low figure as an outlier), but you can't have most people above the median. (That's why median is used for pay gap analysis.)

[pr1]

"But it is mathematically impossible for most people to be better than average at a certain task."

This is not correct. It is very possible for most people to be better than average.

For example, most people have more than the average number of X chromosomes.

your example does not prove your theory

[Guy Incognito]

https://phys.org/news/2023-05-debunk...er-effect.html

"But it is mathematically impossible for most people to be better than average at a certain task."

This is not correct. It is very possible for most people to be better than average.

For example, most people have more than the average number of X chromosomes.

[The Gibson Troubadour]

as promoted by Dun&Brad street.

Well I never

[vetran]

A word that takes me back to the daily WSDL hell at my gig with Axa a few years ago. I'm going to have to go and Google it to remind myself of what it actually means...

Edit:

as promoted by Dun&Brad street.

It is actually quite effective, the credit team with my help instigated at a large international it resulted in a few days less sales outstanding and loads of free cash.

The idea is to identify who is likely to avoid paying and make sure you are first in line for payment as you talk to the payees more than their spouse does.

[The Gibson Troubadour]

https://phys.org/news/2023-05-debunk...er-effect.html

A word that takes me back to the daily WSDL hell at my gig with Axa a few years ago. I'm going to have to go and Google it to remind myself of what it actually means...

Edit:

Dunning is the process of methodically communicating with customers to ensure the collection of accounts receivable. Communications progress from gentle reminders to threatening letters and phone calls and more or less intimidating location visits as accounts become more overdue.

[hobnob]

There is some irony that lots of people will refer to the Dunning-Kruger effect without actually reading the paper. (I've never read it myself.) See:
Saturday Morning Breakfast Cereal - Dunning (smbc-comics.com)

[NotAllThere]

https://phys.org/news/2023-05-debunk...er-effect.html

The Dunning and Kruger experiment did find a real effect—most people think they are better than average. But according to my team's work, that is all Dunning and Kruger showed.