[R-sig-teaching] Cronbach's Alpha Values

[Jeff Laux]

This isn't about how to use R to teach statistics, so it should go to the
main r-help listserv, not this SIG. Also, you should include some data and
code for people to run to get the output you got (since here you probably
made an innocent mistake).


On Thu, Feb 9, 2017 at 1:37 PM, Jeremy Miles <jeremy.miles at gmail.com> wrote:

> Almost always that you've made a mistake and haven't reversed some items
> that should have been reversed. (Some software will do that automatically).
>
> Use check.keys=TRUE, and the alpha function (in the psych package) will
> automatically reverse items if that needs to be done.
>
> J
>
> On Thu, 9 Feb 2017 at 09:58 Steven Stoline <sstoline at gmail.com> wrote:
>
> > Dear All:
> >
> >
> > how to interpret the negative values of Cronbach's Alpha.
> >
> > *e.g.*,  alpha  = -0.229974  ,  alpha   = -0.172835
> >
> >
> > thank you very much for your help.
> >
> >
> > with thanks
> > steve
> >
> > --
> > Steven M. Stoline
> > sstoline at gmail.com
> >
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> >
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> >
>
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