Tiêu đề 7.4. Controlling Variables to Identify Causal Effect.pdf ✅

pacmann.io © 2022 – Pacmann AI 40 Controlling Variables to Identify Causal Effect
pacmann.io © 2022 – Pacmann AI 41 Closing Back Door ● Steps to identify causal effect by controlling: 1. List all the paths 2. Determining the back door paths 3. Controlling variables to close back door paths ● By doing so, we isolate the variation of interest and identify the causal effect.
pacmann.io © 2022 – Pacmann AI 42 Idea of Controlling Variables We want to remove all parts of the X / Y relationship that is related to control variable (Z) in back door path
pacmann.io © 2022 – Pacmann AI 43 1. Predicting Variation (what regression does) 2. Selecting Non-Variation (what “matching” does) Two Main Approches of Controlling