Re: Negative Cronbach's alpha for 0/1 values

Posted by David Marso on Oct 01, 2012; 12:45pm
URL: http://spssx-discussion.165.s1.nabble.com/Negative-Cronbach-s-alpha-for-0-1-values-tp5715396p5715398.html

Inspect the covariance matrix among the items.  You will obviously find some items or items have negative relationship with others.  What does this tell you about the nature of your desired scale in relation to the items you have chosen.
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Eins Bernardo wrote

Hope someone can help solve my problem pertaining to the negative Cronbach's alpha.  I have 10 items and each item is coded 0 and 1, where 1 is the correct answer.  Please suggest what shall be done when Cronbach's alpha is negative for 0/1 values.