regression toward the mean

• Statistisches Phänomen, bei dem auf einen extremen oder ungewöhnlichen Beobachtungswert mit hoher Wahrscheinlichkeit ein eher durchschnittlicher oder typischer Wert folgt; wird oft in Psychologie, Finanzwesen und Sport genutzt, um zu erklären, warum außergewöhnliche Ergebnisse mit der Zeit zum Mittelwert zurückkehren.

A statistical phenomenon where an extreme or unusual observation is likely to be followed by a more average or typical one, often used in psychology, finance, and sports to explain why exceptional results tend to normalize over time.

1. Statistical phenomenonC1formal

   The statistical tendency for extreme or unusual results to be followed by results that are closer to the average.

   Regression zur Mitte

   • After an unusually high score on the first test, the student's second score showed regression toward the mean.
   • In sports, a player's exceptional performance in one season is often followed by a more average performance due to regression toward the mean.
   • The concept of regression toward the mean explains why extreme events are often followed by less extreme ones.