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Causal DAG templates

Biology — Selection Bias (Collider)

Conditioning on study entry opens a collider path.

Causal DAGLife SciencesCausal DAG syntax docs
Template previewCausal DAG
Selection bias (collider)XExposureYOutcomeSSelection (study entry)ExposureOutcomeConfounderMediatorUnobservedThe exposure is unconfounded: every backdoor path is already blocked, so the crude association estimates the total effect. 3 variables, 3 edge…No adjustment is needed: the exposure is unconfounded in this diagram, so the crude association between `Exposure` and `Outcome` already estimates the total effec…

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title "Selection bias (collider)"
exposure X "Exposure"
outcome Y "Outcome"
node S "Selection (study entry)"
X -> S
Y -> S
X -> Y