Hi:

Just to add to the discussion, see the following article by Russell Lenth on
the subject:

http://www.stat.uiowa.edu/techrep/tr378.pdf

Dennis

On Thu, Sep 2, 2010 at 3:59 PM, C Peng <peng.cheng_pc@hotmail.com> wrote:

>
> Agree with Greg's point. In fact it does not make logical sense in many
> cases. Similar to the use of the "statistically unreliable" reliability
> measure Cronbach's alpha in some non-statistical fields.
> --
> View this message in context:
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> Sent from the R help mailing list archive at Nabble.com.
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