diff --git a/tex/lecture_3.pdf b/tex/lecture_3.pdf
index 4cd5e33..ba28aae 100644
Binary files a/tex/lecture_3.pdf and b/tex/lecture_3.pdf differ
diff --git a/tex/lecture_3.tex b/tex/lecture_3.tex
index 60df554..da5cff8 100644
--- a/tex/lecture_3.tex
+++ b/tex/lecture_3.tex
@@ -194,7 +194,7 @@
 			
 			Common metrics for DI and \textbf{\textit{group}} disparities:\\
 			\begin{itemize}
-				\item Accuracy disparity: $\frac{\text{accuracy}_p}{\text{accuracy}_r}$
+				\item Differential validity: $\frac{\text{accuracy}_p}{\text{accuracy}_r}$
 				\item Adverse impact ratio: $\frac{\text{\% accepted}_p }{ \text{\% accepted}_r}$ 
 				\item Marginal effect: $\text{\% accepted}_p - \text{\% accepted}_r$
 				\item Standardized mean difference: $\frac{\bar{\hat{y}}_p - \bar{\hat{y}}_r}{\sigma_{\hat{y}}}$