Date:         Tue, 4 Oct 2005 13:11:45 -0400
Reply-To:     Art@DrKendall.org
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Art Kendall <Art@DrKendall.org>
Organization: Social Research Consultants
Subject:      Re: MANCOVA: Interpetation of significant covariate with NO main
              effect
Comments: To: babyblue325@juno.com
In-Reply-To:  <20051004.110953.2100.11.babyblue325@juno.com>
Content-type: text/plain; charset=ISO-8859-1; format=flowed

Please give us more detail.
How are you measuring the placebo?  Are you sure it is an outcome or
effect variable?
How many independent variables do you have?  How are they measured?
How many dependent variables do you have?  How are they measured?

Art
Art@DrKendall.org
Social Research Consultants
University Park, MD  USA  Inside the Washington, DC beltway.
(301) 864-5570


<Jordan Hamson> wrote:

>Hello Listers!
>
>I have a MANCOVA, with no main effect, but a significant covariate. How
>should I interpret this? It is important b/c the covariate is measuring
>for a placebo effect.
>Thanks! Jordan
>
>
>
>