diff --git a/education/statistics/Correlation and Regression.md b/education/statistics/Correlation and Regression.md
index fa165f9..fe9f94e 100644
--- a/education/statistics/Correlation and Regression.md	
+++ b/education/statistics/Correlation and Regression.md	
@@ -96,8 +96,12 @@ $$ \hat{y} = \frac{x-\bar{x}}{\sigma_x} * r * \sigma_y + \bar{y} $$
 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
+- Being asked to interpret the slope: __slope__ means that for every _unit_
 ### 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. 
+- 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. 
+- The regression *fallacy* is contributing this to something other than chance error.
+
+---
 # Terminology
 | Term | Definition |
 | -- | -- |