Date:         Thu, 17 Feb 2005 12:52:18 +1030
Reply-To:     Kylie Lange <kylie.lange@flinders.edu.au>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Kylie Lange <kylie.lange@flinders.edu.au>
Subject:      Re: simple effects in GLM
Comments: To: "Parise, Carol A." <PariseC@sutterhealth.org>
In-Reply-To:  <17D801942A3DB44E92306BF9136B6950023A0D0B@dcsh4ex.sutterhea
              lth.org>
Content-Type: text/plain; charset="us-ascii"; format=flowed

Hi Carol,

Try the following line in your GLM syntax:

/EMMEANS = TABLES (time*group) COMPARE(group)

You can also add a ADJ() clause to the end of that line if you want to
adjust the significance values of the 3 individual tests to account for
multiple testing - options are LSD (no adjustment), BONFERRONI and SIDAK.

Cheers,
Kylie.


At 06:03 PM 16/02/2005 -0800, Parise, Carol A. wrote:
>Hi all,
>
>I've run a mixed design anova using GLM. I have one repeated factor
>(time-3 levels) and one between subjects factor (group-2 levels). I have a
>statistically significant time x group interaction. Now, i want to know at
>what levels of time are the 2 groups different. I recall that when i ran
>MANOVA, i would have done something like this:
>
>/design = time1 within group
>
>/design=time2 within group
>
>/design=time3 within group
>
>and the result would be anova tables for each of these tests. a
>statistically significant F would mean that the 2 groups were different at
>the given time.
>
>i cannot seem to accomplish this in GLM. the error seems simply to be
>syntax. anyone know the correct way to tell spss to do this?
>
>thanks for your always valuable insights.
>
>carol
>
>sacramento, ca