From b687be1ebf49ac801af15a255b6a6b97aba51404 Mon Sep 17 00:00:00 2001 From: zleyyij Date: Mon, 18 Dec 2023 14:19:40 -0700 Subject: [PATCH] vault backup: 2023-12-18 14:19:40 --- education/statistics/Correlation and Regression.md | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/education/statistics/Correlation and Regression.md b/education/statistics/Correlation and Regression.md index 6e22735..fa165f9 100644 --- a/education/statistics/Correlation and Regression.md +++ b/education/statistics/Correlation and Regression.md @@ -96,7 +96,8 @@ $$ \hat{y} = \frac{x-\bar{x}}{\sigma_x} * r * \sigma_y + \bar{y} $$ 4. Add the average of $y$ - For a positive association, for every $\sigma_x$ above average we are in $x$, the line predicts $y$ to be $\sigma_y$ standard deviations above y.x - +### The Regression Effect +In a test-retest situation, people with low scores tend to improve, and people with high scores tend to do worse. This means that individuals score closer to the average as they retest. # Terminology | Term | Definition | | -- | -- |