KnowraRegression toward the meanLinked fromLinked fromThe 12 pages that link to Regression toward the mean, each with the reason it gives.All 12Broader topic 1Related 5Compared with 6PlaceboRelated: Symptoms often prompt treatment at a peak, then ease regardless of the placebo.Regression analysisRelated: It is a statistical pattern often mistaken for change caused by an intervention.Norm-referenced testRelated: Extreme norm-referenced results often become less extreme on retesting, even without intervention.Control groupRelated: A control group helps reveal whether apparent improvement would occur without treatment.Dunning–Kruger effectRelated: Statistical analyses show it can produce apparent skill-linked self-rating patterns.