Thank you Steve!
I was trying to use cfa1, but I realized that I couldn't input my correlation matrices.
I also did a web search on the gllam, but I was honestly scared off by reading how difficult it is.
I will look at the MX program you mention.
Gillian
________________________________________
From: [email protected] [[email protected]] On Behalf Of Steven Samuels [[email protected]]
Sent: Friday, December 12, 2008 4:47 PM
To: [email protected]
Subject: Re: st: confirmatory factor analysis with binary variables
On Dec 12, 2008, at 3:55 PM, Buckley, Gillian J. wrote:
> I am trying to do a confirmatory factor analysis on data that is
> all binary, 0=no, 1=yes. I have downloaded the tertrachoric
> command and used this to find the tertrachoric correlations. Is it
> possible to do confirmatory factor analysis with this data using
> the cfa1 command in Stata 9?
The Statalist FAQ state: "Say what command(s) you are using. If they
are not part of official Stata, say where they come from: the STB/SJ,
SSC, or other archives."
-cfa1- (and its more able sibling -cfa-) were written by Stas
Kolenikov. The -help- files (available online if you type "search
cfa1, all") show no provision for inputting correlation matrices.
-gllamm- ("search gllamm, all") will fit CFAs, but people more
experienced than I report that this is not easy. Also, -gllamm- will
not report standard CFA fit statistics.
Look into Mike Neale's free MX Program, which is available for a
variety of platforms. I learned about it from Jay Verkuilen's post
at http://www.stata.com/statalist/archive/2008-11/msg00776.html
-Steve
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
