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A mediator is a variable that plays an intermediate role in a causal chain, i.e., the 1st variable in the chain causes the mediator, which in turn causes the 3rd variable. Partial mediation is when the 1st variable causes the 3rd both through the mediator & directly.

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mediation vs interaction - R application

I am struggling to understand how/if the interaction is connected to mediation. … I guess I am wrong in assuming that if X interacts with Z, I can decompose the influence of Z on the effect of X on Y using mediation analysis. …
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