Game 2
Context
"In this example you should think of A, B, C, and D as โpretreatmentโ variables. (The treatment, as usual, is X.) Now there is one back-door path XโAโ BโDโEโY. This path is already blocked by the collider at B, so we donโt need to control for anything." (Pearl, p. 160)
Game 2 in BayesiaLab
For Game 2, we have once again created a causal Bayesian network, which is available for download here:โ
Note that the associated probability tables are fictitious. For our purposes, only the causal graph is relevant.
As before, we select
Main Menu > Analysis > Visual > Graph > Influence Paths to Target
to analyze the paths from X to Y.โ
We can see that there is no noncausal path.
Hence, there is then no need to control for any variables.
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