="blocking-correlating-and-non-correlating-pathways-using-covariates" class="level2 page-columns page-full">
<h2 class="anchored" data-anchor-id="blocking-correlating-and-non-correlating-pathways-using-covariates">Blocking correlating and non-correlating pathways using covariates</h2>
<p>Here is a DAG with links drawn in different colors to help distinguish the <strong>direct link</strong> between X and Y, which is drawn in black, and the <strong>backdoor pathway</strong> involving node C is drawn in green.