CFA bi-factor model and centering PreviousNext
Mplus Discussion > Confirmatory Factor Analysis >
 Ina Prokjev posted on Tuesday, September 23, 2014 - 12:57 am
Dear Linda, dear Bengt,

I want to run a CFA for a bi-factor model with correlated latent factors. One latent factor (general achievement; GenAch) is indicated by school grades (v1-v6)and I want to center these indicators at the cluster mean. cluster is "class". And I want to take into account that there is a hierarchical multilevel structure of data (pupils in classes).

Is this how I can do it?

centering=groupmean (v1-v6);


GenAch by v1-v6*;

thanks for your help!
 Linda K. Muthen posted on Tuesday, September 23, 2014 - 8:54 am
You have centered and you have taken clustering into account. I don't see a bi-factor model. And if you free all factor loadings as you have done,

GenAch by v1-v6*;

you must fix the factor variance to one.

 Ina Prokjev posted on Tuesday, September 23, 2014 - 12:32 pm
thanks for your help. Yes, I know about fixing to one. I just send an excerpt of the syntax. the full model is specified as a bi-factor model. my main concern was to clarify the centering question.

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