Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

st: calculate alpha after polychoric factor analysis


From   <[email protected]>
To   <[email protected]>
Subject   st: calculate alpha after polychoric factor analysis
Date   Mon, 13 Feb 2012 13:54:14 +0000

Dear Stata Listers,
 
I would like to estimate the equivalent of  Cronbach's alpha after factor analysis conducted on a polychoric matrix of ordinal, Likert items. I started out in a pretty standard way thus:
 
polychoric var1 - var29 
display r(sum_w) // check number of respondents answered all = 331
matrix r = r(R)
factormat r, n(331) factors(3) ipf
alpha?
 
Is there such functionality available, or might I have to re-do the whole analysis in R or SAS?
 
thanks,
 
Seyi
 
 
Dr Seyi Soremekun
Faculty of Epidemiology and Public Health 
London School of Hygiene and Tropical Medicine
London WC1E 7HT
+442079272464


*
*   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/


© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index