Dear List Members,
I am working with v 6.0 & have two questions. I could not find answers
in the reference manuals or on the Stata website:
1. When performing factor analysis, Stata produces a table
labeled "eigenvectors." This looks to me like what I know as factor
loadings. Is this correct or is there a different interpretation?
2. I have been told that in running the alpha command (Cronbach's
alpha for measuring inter-item correlation) with a list of dichotomous
variables that Stata recognizes that it is processing binary variables
and automatically substitutes the KR20 formula for Cronbach's alpha.
Is this true? If so, is there a reference I can cite to that effect?
(A colleage claims that if I want KR20 values instead of Cronbach's
alpha, my only option is to calculate them by hand.)
Many thanks.
Steve Harvey
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
