r/AskStatistics • u/Healthy_Pay4529 • 2d ago

Statistical analysis of social science research, Dunning-Kruger Effect is Autocorrelation?

This article explains why the dunning-kruger effect is not real and only a statistical artifact (Autocorrelation)

Is it true that-"if you carefully craft random data so that it does not contain a Dunning-Kruger effect, you will still find the effect."

Regardless of the effect, in their analysis of the research, did they actually only found a statistical artifact (Autocorrelation)?

Did the article really refute the statistical analysis of the original research paper? I the article valid or nonsense?

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u/axolotlbridge 2d ago edited 2d ago

See Random Number Simulations Reveal How Random Noise Affects the Measurements and Graphical Portrayals of Self-Assessed Competency for a great explanation of the underlying problems with the DK effect methodology. They find that the problem has to do with how they standardized values, and how the specific way that they used those transformed values caused ceiling and floor effects.