You're confusing concepts. Regression to the mean doesn't depend on any IID assu...

		ctlby on May 22, 2019 \| parent \| context \| favorite \| on: IQ rates are dropping in many developed countries You're confusing concepts. Regression to the mean doesn't depend on any IID assumption. Conditional expectations are right in the definition! In the bivariate normal case (height, intelligence, etc), it's a necessary consequence of a correlation coefficient < 1.