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!

Olivia
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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

Cheers,
Ravi
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