Date:         Wed, 15 Nov 2000 13:11:50 -0800
Reply-To:     c dommeyer <vcmkt001@CSUN.EDU>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         c dommeyer <vcmkt001@CSUN.EDU>
Subject:      Re: Reliability Analysis with Nominal Data
Comments: To: "Winkel, Gary" <GWinkel@gc.cuny.edu>
In-Reply-To:  <C39E2067E1EDD211B4D200902745A6E10217A628@mail.gc.cuny.edu>
Content-Type: TEXT/PLAIN; charset=US-ASCII

Gary:

Thanks much for your response.  I, however, do not have binary
variables. Each of my items has 3 options, not 2.  Therefore, I don't
think I can legitmately use the KR20 approach. Correct?

Curt Dommeyer

On Wed, 15 Nov 2000, Winkel, Gary wrote:

> Hi Mr. Dommeyer!
>
>       Kuder-Richardson 20 is a special case of Cronbach's alpha for binary
> variables.  So you can use the reliability module in SPSS for your analysis.
>
> Regards,
>
> Gary Winkel
> City University of New York
>
> -----Original Message-----
> From: c dommeyer [mailto:vcmkt001@CSUN.EDU]
> Sent: Wednesday, November 15, 2000 3:57 PM
> To: SPSSX-L@LISTSERV.UGA.EDU
> Subject: Reliability Analysis with Nominal Data
>
>
> Hi:
>
> I asked this questions a few days ago but got no response. Hopefully today
> someone will be inspired to respond.
>
> I have a ten item scale where each item allows for three choices. The
> choices are coded 1, 2, & 3, and represent nominal data.  Each item has
> one "correct" answer where I award a point to the respondent. If the
> "correct" choice is not marked, no points are awarded. A respondent can
> score from 0 to 10 on this scale. From what I understand, I can't
> "legally" perform a reliability analysis on this scale (similar to a
> Cronbach's alpha).  Am I right or wrong?
>
> Curt Dommeyer
> CSUN
>