I am trying to calculate f squared (Effektstärke in German). So far, I have been doing the calculation by plugging in the different values in the formula I found:
f2= R2(included)-R2(excluded)/1-R2(incl.)
Is there also the possibility to calculate f2 with smartPLS directly?
I would be happy if someone could help me with my question. Thanks in advance,
Yvonne
How to calculate f squared?
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You have to calculate the effect size by yourself! But it is very easy to do that.
Calculate your whole model with all variables and take the R2 of the target variable. This is your ‘R2 include’. Then delete the one variable which effect you will test on the target variable. Now, you have to calculate your model without the deleted variable. Thereafter, you have to take the R2 of your target variable once again. This is your ‘R2 exclude’. To get the effect size you have to calculate following formula:
(‘R2 include’-‘R2 exclude’)/(1-‘R2 include’)
I hope that help’s!
Christian
Calculate your whole model with all variables and take the R2 of the target variable. This is your ‘R2 include’. Then delete the one variable which effect you will test on the target variable. Now, you have to calculate your model without the deleted variable. Thereafter, you have to take the R2 of your target variable once again. This is your ‘R2 exclude’. To get the effect size you have to calculate following formula:
(‘R2 include’-‘R2 exclude’)/(1-‘R2 include’)
I hope that help’s!
Christian
Thank you! This is what I was looking for!
Maybe you can help me with some other problems?!
viewtopic.php?t=324
viewtopic.php?t=1824
Maybe you can help me with some other problems?!
viewtopic.php?t=324
viewtopic.php?t=1824