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 <[email protected]> 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 <[email protected]> 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
> > [email protected]
> >
> >         [[alternative HTML version deleted]]
> >
> > _______________________________________________
> > [email protected] mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-sig-teaching
> >
>
>         [[alternative HTML version deleted]]
>
> _______________________________________________
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>

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