How to treat similarity between dyads as a mediator?

15 January 2021 1 10K Report

Hi,

I have a dyadic dataset with distinguishable dyads (husbands and wives). I want to test a model with a predictor (X(f) X(m)), a mediator which is a similarity/difference in a trait, and dependent variable (Y(f) Y(m)). I would normally use SEM, but I'm not sure how to treat the difference score. Thank you for your help!

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