Multiple Mediation Analysis

#1
Hi. I was wondering if someone could help me with figuring out the sample size when using a multiple mediation analysis (bootstrapping). I have one main predictor and two mediators. I tried with G*Power but I'm not sure if that's the correct way.
Thank you so much!
 

spunky

Can't make spagetti
#2
Hi. I was wondering if someone could help me with figuring out the sample size when using a multiple mediation analysis (bootstrapping). I have one main predictor and two mediators. I tried with G*Power but I'm not sure if that's the correct way.
Thank you so much!
You can't use GPower to do power analysis unless it's for the simplest of cases (one predictor, one mediator) AND it will not calculate power for the indirect effect.

Power for mediation analysis can only be approximated through simulation.