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Simpson's paradox
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78.
Cause of Simpson's Paradox
easy
What is the key variable responsible for Simpson's Paradox?
A
An interaction variable that moderates the relationship differently at aggregate and subgroup levels
B
A collider variable that creates a spurious association when conditioned upon in the analysis
C
A mediating variable that transmits the treatment effect through an unobserved pathway
D
A confounding variable that is unevenly distributed across the groups being compared
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