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... > social science subjects > health and social care > medical science > medicine > clinical medicine > medical decision making > biostatistics and clinical epidemiology > regression to the mean
... > other subjects > natural sciences > life sciences > medical science > medicine > clinical medicine > medical decision making > biostatistics and clinical epidemiology > regression to the mean

Preferred term

regression to the mean  

Definition

  • Regression to the mean (RTM) is a widespread statistical phenomenon that occurs when a nonrandom sample is selected from a population and the two variables of interest measured are imperfectly correlated. The smaller the correlation between these two variables, the more extreme the obtained value is from the population mean, and the larger the effect of RTM (that is, there is more opportunity or room for RTM). [Source: Encyclopedia of Research Design; Regression to the Mean]

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https://concepts.sagepub.com/social-science/concept/regression_to_the_mean

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