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Re: st: Reliability/ Factor analysis commands
On 23 Feabh 2007, at 20:51, Vanessa Mahlberg wrote:
I�m a German student doing her diploma thesis in Human Resources
Management. I�ve got 2 questions.
1. I would like to do a reliability analysis with Spearman Brown.
(I have already calculated Cronbach�s Alpha). I only found the
command "Spearman�s rank correlation".
Alpha has the drawback that it depends on the number of items. An
alternative, which does not, is Loevinger's H, which you will find if
you issue the command
. findit loevinger
Can anybody please help me to get the reliability coeffizient
(Spearman_Brown)
2. How can I use a factor analysis with stata.I dont�t know the
command.
Stata has a whole chunk of manual devoted to factor analysis, which
tells you a lot about how to run it, including the name of the
command (-factor-).
I wonder if you need to read up on some general text that introduces
the statistics of test evaluation. Your questions suggest that
someone told you do go away and calculate statistics X, Y and Z, but
not why.
Stata does the statistics, but you have to supply the reason.
=========
Ron�n Conroy
Royal College of Surgeons in Ireland
[email protected]
+353 (0) 1 402 2431
+353 (0) 87 799 97 95
http://www.flickr.com/photos/ronanconroy
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