Factor analysis- correlations and estimation method

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by OliviaKirtley » Wed Jul 25, 2018 12:57 pm

Hi there,

I was wondering if JAMOVI automatically uses polychoric correlations for ordinal data in CFA and EFA?

Also, what is the estimation method used for CFA?

Thanks in advance for your help!

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by Ravi » Wed Jul 25, 2018 6:27 pm

Hi Olivia,

At the moment we don't use polychoric correlations, we assume that everything is continuous.

For CFA we use the maximum likelihood, the default estimator in lavaan (which is the R package that the CFA is based on). See, http://lavaan.ugent.be/tutorial/est.html

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