Individual proportion on R2

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PLS Junior User
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Joined: Thu Aug 13, 2015 7:21 am
Real name and title: Johannes Gamel

Individual proportion on R2

Post by Hansson » Fri Apr 20, 2018 11:33 am

Hello Community,

does SmartPLS allows conclusions about the individual proportion of an exogenous latent variable on the R2 of the endogenous latent variable by removing the variable of the equation model and tracking the difference in R2? Would this approach be methodologically correct?

Thanks a lot!!!

SmartPLS Developer
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Real name and title: Dr. Jan-Michael Becker

Re: Individual proportion on R2

Post by jmbecker » Mon Apr 23, 2018 1:53 pm

We provide the f² value which is very similar to your approach: It takes the individual contribution R² included - R² excluded and then divides this number by 1- R² included. Thus, it is the individual R² contribution relative to the unexplained variance.

You may not want to calculate such a number yourself, because in PLS you are changing the whole model context when deleting a construct. Thus you may get strange results if you really delete the construct and not calculate the difference based on a fixed model.
Dr. Jan-Michael Becker, University of Cologne, SmartPLS Developer
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