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A comment on What the Dunning-Kruger effect is and isn’t (2010). Parent comment

Re:What the Dunning-Kruger effect is and isn’t (2010) by porb121 on Tuesday April 13, 2021 @07:02PM (#26800604)
No, it's not a confirmation. Experts have a tighter distribution of self-assessment - when they miss, they miss by less. However, non-experts and experts alike overrate and underrate their competency with about equal frequency.

Because of ceiling and floor effects (it's hard to massively underrate yourself when you're already in the bottom decile of actual competency, and vice versa), non-experts have a mean self-assessment higher than their actual competency, but that doesn't mean that non-experts as a group tend to overrate themselves.

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Re:What the Dunning-Kruger effect is and isn’t (2010) by jstanley on Wednesday April 14, 2021 @02:27AM (#26803629)
> non-experts have a mean self-assessment higher than their actual competency, but that doesn't mean that non-experts as a group tend to overrate themselves.

Doesn't it mean exactly that? It doesn't matter if it's caused by ceiling and floor effects, the end result is that the less competent tend to overrate themselves.

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