lavTestLRT using Yuan-Bentler correction

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Amélie Godefroidt

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Aug 21, 2018, 8:30:22 AM8/21/18
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Dear, 

I am fitting a SEM model using the MLR estimator in Lavaan. Hence, I always report the Robust fit indices in my paper. However, the standard anova or LavTestLRT function still uses the ML estimated Chi-square values. Why? And how can I change this?

Thanks in advance! Amélie 

Terrence Jorgensen

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Aug 24, 2018, 4:05:30 AM8/24/18
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the standard anova or LavTestLRT function still uses the ML estimated Chi-square values. Why? And how can I change this?

That is what it is supposed to do.  A scaled chi-squared-difference test is not the difference between two robust chi-squared values.  Like the scaling of the individual models' chi-squareds, the (naïve) chi-squared difference needs to be scaled.  You can see some details here:


Terrence D. Jorgensen
Postdoctoral Researcher, Methods and Statistics
Research Institute for Child Development and Education, the University of Amsterdam

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