[R] cronbach's alpha

Dimitris Rizopoulos dimitris.rizopoulos at med.kuleuven.be
Wed Nov 14 09:25:20 CET 2007

look also at functions cronbach.alpha() and descript(), in the 'ltm' 


Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/

----- Original Message ----- 
From: "raymond chiruka" <rtchiruka at yahoo.com>
To: "r" <r-help at stat.math.ethz.ch>
Sent: Wednesday, November 14, 2007 12:33 AM
Subject: [R] cronbach's alpha

> hie
>    1...i'm trying to carryout a relibility testusing cronbach's 
> alpha what fuctin do i use.
>    2.. this is more of a statistical question.if the alpha value 
> for all the variables  is negative what does it mean. and if the 
> alpha value is negative for all tyha variables but is greater than 
> 0.7  for some sections of the variables what does that mean
>  thanks in advance
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