Re: [R] Factor Analysis

From: John Fox <jfox_at_mcmaster.ca>
Date: Sat, 12 Jan 2008 14:18:02 -0500

Dear Kathleen,

You can use the sem() function in the sem package to fit CFA models from tetrachoric correlations computed with the polycor package. See ?boot.sem in the sem package for an example using polychoric correlations for ordinal observed variables (tetrachoric correlations are a special case when the variables are dichotomous). This example is also described in a paper that you can get at <http://socserv.mcmaster.ca/jfox/Misc/sem/SEM-paper.pdf>.

I hope this helps,
 John



John Fox, Professor
Department of Sociology
McMaster University
Hamilton, Ontario, Canada L8S 4M4
905-525-9140x23604
http://socserv.mcmaster.ca/jfox

> -----Original Message-----
> From: r-help-bounces_at_r-project.org [mailto:r-help-bounces_at_r-
> project.org] On Behalf Of Kathleen Kemp
> Sent: January-12-08 9:11 AM
> To: r-help_at_r-project.org
> Subject: [R] Factor Analysis
>
> Good Morning,
>
> Is it possible to use the R program for a CFA with dichotomous data?
>
> Thank you,
>
> Kathleen
>
>
> Kathleen Kemp, M.A.
> Doctoral Clinical Psychology Student,
> Concentration: Forensic Psychology
> Drexel University
> Philadelphia, PA 19104
> kk354_at_drexel.edu
>
>
>
> [[alternative HTML version deleted]]
>
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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Sat 12 Jan 2008 - 19:25:18 GMT

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