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Hi guys,

I am trying to measure effect size f2 for my model. However, my model is a bit confusing since it has one independent variable and two dependent variable



in this model X2 affects X3 and Y. So how I could calculate f^2 of X2? since the formulation is = R^2 include - R^2 Exclude/ 1 - R^2 include.

Construct X2 contributes two R^2. One R^2 for X3 and R^2 for Y. So if I exclude X2, the amount of R^2 X3 and Y are changed. Can be seen from the model I attached.



Please advise me how to calculate f2 for this kind of model.
( this is not real my model and data..but the case is similar with this)

Dear Ananda,

The problem do you have is quickly resolved.

You calculate the effect size f^2 always for a specific connection in your path model. In your case that means you have to calculate the effect size of X2 on X3 and on Y also. Thereafter you have two effect sizes. There is not a effect size X2 for itself.

Best,

Christian

Dear Christian,

given the model above: If you calculate f2 for X3 on Y does X1 (which has a direct path to both X2 and X3) have to remain in or be deleted from the model?

Thank you very much!
Eva

Yes, X1 have to remain in the model.

Cheers,

Christian

Thank you, Christian!