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Date:         Fri, 8 Sep 2006 11:05:56 -0400
Reply-To:     Statisticsdoc <statisticsdoc@cox.net>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Statisticsdoc <statisticsdoc@cox.net>
Subject:      Re: coefficient alpha
Comments: To: "Campenni, Estelle" <Campenni@es.marywood.edu>
In-Reply-To:  <3BA6101C19D5554D8616BCE7B4368E080340C1AD@ntsvr003.marywood.edu>
Content-Type: text/plain; charset="iso-8859-1"

Stephen Brand www.statisticsdoc.com

Estelle,

One way to address your research question, albeit with a different analysis, is to conduct a mutli-group Stuctural Equation Model, with AMOS or your favorite SEM package. Test a model in which the items load on the relevant scales. Test the model separately for males and females. Constrain the item loadings to be equal in both samples and see whether this results in a significantly poorer fit. If there is a poorer fit, see which item(s) differ substantially between samples and by how much. If you have multiple scales, you can also examine whether the scale intercorrelations are the same for both males and females - a separate but potentially interesting question.

HTH,

Stephen Brand

For personalized and professional consultation in statistics and research design, visit www.statisticsdoc.com

-----Original Message----- From: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU]On Behalf Of Campenni, Estelle Sent: Thursday, September 07, 2006 2:04 PM To: SPSSX-L@LISTSERV.UGA.EDU Subject: coefficient alpha

I am interested in determining if the internal consistency of a battery of items differs for women and men. Thus, I am interested in determining if the two Chronbach alphas are significantly different. How would I do this?

Estelle Campenni


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