Model fit check in higher-order model

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PLS Junior User
Posts: 3
Joined: Mon Jun 25, 2018 1:38 pm
Real name and title: Xi Yang

Model fit check in higher-order model

Post by yang » Tue Jul 03, 2018 10:27 am

Dear all,

the rms Theta equals to 0.193 in my higher-order model, which is far above the threshold, 0.14. I wonder if there is any limitation to interpret goodness of fit in higher-order model. How about other assessment of the structural model, i.e. R², f², Q².

Thank you!

SmartPLS Developer
Posts: 971
Joined: Tue Mar 28, 2006 11:09 am
Real name and title: Dr. Jan-Michael Becker

Re: Model fit check in higher-order model

Post by jmbecker » Tue Jul 03, 2018 10:54 am

High RMS Theta means that you have substantial residual correlation. That could be a problem for the estimation of parameters, but it must not be. If you have a repeated indicator second-order model you have residual correlation by design (i.e., similar residuals for the repeated indicators). Thus high residual correlations there must not be a problem, whereas they can be a problem in other parts of the model.
Dr. Jan-Michael Becker, University of Cologne, SmartPLS Developer
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