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in Feature request by dankatz00 (120 points)
Is it possible to use the path analysis tool for mediation models with repeated measures? I am looking to power a simple mediation model, but one where the two regressions have random intercepts. In other words, there is an independent variable X, a mediator M that every participant responds to n times, and a dependent variable Y that every participant responds to n times. I know I can simply use OLS if I average over the n responses, but I was hoping to avoid that. Thank you in advance for your help.

1 Answer

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by johnny (2.6k points)
If you can specify your model as a wide format SEM model, it can be done using WebPower. Otherwise, the current multilevel method in WebPower only support univariate mixed-effects models.
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