Outer VIF Calculation

Frequently asked questions about PLS path modeling.
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PLS Junior User
Posts: 6
Joined: Fri Oct 09, 2020 5:56 am
Real name and title: Waqas Ali

Outer VIF Calculation

Post by WaqasAli1125 »

Respected Members,
I hope you are all good in health. I am interested to calculate Outer VIF values in spreadsheet. I have read there are not available formula for Outer VIF. anyone expert can help me in this regard.
SmartPLS Developer
Posts: 1174
Joined: Tue Mar 28, 2006 11:09 am
Real name and title: Dr. Jan-Michael Becker

Re: Outer VIF Calculation

Post by jmbecker »

VIF = 1/ (1-Ri²), where Ri² is the r-square of the focal predictor i, when regressing all other predictors on this variable.

In the outer model, the focal predictor i would be a specific manifest variable of a latent variable, and all other predictors are the other manifest variables of that predictor.
Dr. Jan-Michael Becker, University of Cologne, SmartPLS Developer
Researchgate: https://www.researchgate.net/profile/Jan_Michael_Becker
GoogleScholar: http://scholar.google.de/citations?user ... AAAJ&hl=de
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