[R] Significance test, Cronbach's Alpha

Jim Lemon jim at bitwrit.com.au
Tue Jun 6 01:19:37 CEST 2006

Tom Backer Johnsen wrote:
> Hello:
> I am reviewing a paper at the moment where the author reports a 
> Cronbach's Alpha and adds a significance test of the value.  I was not 
> aware that such a test exists.  Does it?  If so, how is it done in R?
Hi Tom,

This may be due to the fact that some interpret Cronbach's alpha as a 
correlation between items, thus encouraging the unwary to assume that 
the probability of a numerically equivalent correlation can be used as a 
test of significance.


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