Date:         Wed, 15 Mar 2000 07:17:37 -0800
Reply-To:     glaser@pacific-science.com
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Dale Glaser <glaser@PACIFIC-SCIENCE.COM>
Subject:      Re: ANCOVA vs repeated measures ANOVA
Comments: To: William Dudley <wdudley@SPH.EMORY.EDU>
In-Reply-To:  <38CE7584.4B11B47C@sph.emory.edu>
Content-Type: text/plain; charset="iso-8859-1"

Bill...even though a very brief treatise on the subject you mention, you may
want to look at Stevens, J.  (1996).  Applied multivariate statistics for
the social sciences. (3rd Ed.).Mahwah, NJ: Lawrence Erlbaum., and
specifically the section on alternative analyses for pretest-posttest
designs (pp. 327-329).......................dale glaser

-----Original Message-----
From:   SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU] On Behalf Of
William Dudley
Sent:   Tuesday, March 14, 2000 9:23 AM
To:     SPSSX-L@LISTSERV.UGA.EDU
Subject:        ANCOVA vs repeated measures ANOVA

Can someone point me to a source that compares the costs and benefits of
using an ANCOVA with pretest as covariate and post test as DV, versus
using a repeated measures ANOVA with pretest as time one and post test
as time 2?  In either model my between subjects variable has three
levels.

Thanks
BIll