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RE: st: Reliability/ Factor analysis commands


From   "Rajesh Tharyan" <R.Tharyan@exeter.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: Reliability/ Factor analysis commands
Date   Fri, 23 Feb 2007 22:14:43 -0000

Hi,

See more at:

http://www.ats.ucla.edu/stat/stata/faq/fautil.htm

rajesh

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Jeremy Miles
Sent: 23 February 2007 21:26
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: Reliability/ Factor analysis commands

On 23/02/07, Vanessa Mahlberg <vmahlberg@netcologne.de> wrote:
> Hi,
>
> 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".
> Can anybody please help me to get the reliability coeffizient
> (Spearman_Brown)

Spearman Brown is a prophecy formula.  It predicts what alpha would
be, if you had a different number of items in your scale.

You can read about it in any decent book on psychometrics, and if you
type it into Google, you'll find:
http://en.wikipedia.org/wiki/Spearman-Brown_prophecy_formula


> 2. How can I use a factor analysis with stata.I dont´t know the command.
>
> It would be very kind if anybody could help me.

-factor-
Try:
-help factor-

Jeremy

>
> Kind regards
> Vanessa
> *
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> *   http://www.ats.ucla.edu/stat/stata/
>


-- 
Jeremy Miles
Learning statistics blog: www.jeremymiles.co.uk/learningstats

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