[R] Cronbach's alpha

From: Weiwei Shi <helprhelp_at_gmail.com>
Date: Wed 24 Jan 2007 - 18:17:10 GMT

Dear Listers:

I used cronbach{psy} to evaluate the internal consistency and some set of variables gave me alpha=-1.1003, while other, alpha=-0.2; alpha=0.89; and so on. I am interested in knowing how to interpret 1. negative value
2. negative value less than -1.

I also want to re-mention my previous question about how to evaluate the consistency of a set of variables and about the total correlation (my 2 cent to answer the question). Is there any function in R to do that?

Thank you very much!

Weiwei Shi, Ph.D
Research Scientist
GeneGO, Inc.

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Received on Thu Jan 25 16:19:20 2007

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