Hi Clark,
You maybe are aware of this, but describing the 'location' of an interaction
is not as simple as it might seem at first glance. For example, in a 2x2
ANOVA it is not possible to locate an interaction in any one cell, or even
any two or three cells: the interaction involves a relationship among all
four cells. You could eliminate any interaction by changing any one of the
four cell means.
The same reasoning applies to interaction in MANOVA - interaction involves
at least four means and maybe more.
Dale Berger
----- Original Message -----
From: Clark Dickin <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, December 01, 2000 12:03 AM
Subject: Significant interation effect for MANOVA
> I think I am missing something really obvious here but I am stuck for an
> answer. I have a significant main effect for both of my DV's and also
> have a significant Interaction among the DV's but I am unable to
> determine where the interaction comes from. More specifically, is there
> a post hoc test that will allow me to determine the wherabouts of the
> significant interaction, and if so where is it in SPSS Ver. 10? Or is it
> enough to see that the order of the DV's changes for the two groups for
> one of the measures (only one was shown to be significant). My output
> shows that there is a significant interaction and that only one of the
> DV's is significant, but I have three age groups and two experimental
> groups.
>
> Any assiatance wouold be greatly appreciated....
>
>
>
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