Matrix in EFA

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guakiddo
Posts: 1
Joined: Fri Sep 17, 2021 10:25 pm

Matrix in EFA

Post by guakiddo »

Hi! What is the matrix that jamovi uses when performing EFAs? Is it Pearson? I have ordinal variables and should use the polychoric matrix. Is there anyway to set that? Thanks!
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Ravi
Posts: 194
Joined: Sat Jan 28, 2017 11:18 am

Re: Matrix in EFA

Post by Ravi »

Hi! The EFA uses a pearson correlation matrix indeed, and there's no way to use a polychoric correlation matrix at the moment. We use the psych R package to compute the EFA results, and I'm not sure it's possible to use a polychoric correlation in the function provided in that package.
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