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May 14 at 19:12 comment added Peter Flom All mediators are confounders. But not all confounders are mediators. Usually, people say that mediators have to be on the causal chain from IV to DV.
May 14 at 17:45 comment added user9011032 Did I rule out that my mediator is a confounder by the mediation analysis I did? Or is there any statistical test I could do, to find that out?
May 11 at 15:15 comment added Peter Flom But OP did do mediation analysis, which should deal with this.
May 11 at 15:07 comment added Peter Flom Yeah, I think you are right. But it can be tricky to distinguish confounder and mediator. Usually, people say a mediator has to be on the causal path.
May 11 at 14:34 comment added BenP But could that not be the case too for a confounder, so that the uncontrolled effect of X is at least in part spurious?
May 11 at 14:31 comment added Peter Flom It's mediation because the effect of the IV changed a lot when the mediator was added.
May 11 at 14:26 comment added BenP Yes correct @PeterFlom, sorry! But on the other hand, maybe you could give me an answer as well. I mean, since we do not know the exact meaning of the variables involved, you must have had a reason to call it "mediation" based on the analyses done.
May 11 at 14:24 comment added Peter Flom @BenP You put this as a comment on my answer, I think you meant it as a comment on the question
May 11 at 13:58 comment added BenP More a question than an answer: is it impossible for some reason, or unlikely, given all the results, that the CV variable is not a mediator but a confounder? If you cannot imagine why or how there would be mediation, why do you seem to rule out confounding?
May 9 at 17:24 history answered Peter Flom CC BY-SA 4.0