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st: conflicting results on interaction effect
From
Meng Zhao <[email protected]>
To
[email protected]
Subject
st: conflicting results on interaction effect
Date
Wed, 21 Jul 2010 15:49:35 -0700 (PDT)
Hello,
I run a binomial logistic regression with an interaction variable:
Coef. P>z
x 6.958805 0.026
z 5.11967 0.000
x*z -7.490387 0.034
x is a continuous variable, z is a dummy variable. Does this result indicate a sig. positive relationship between x and dependent variable when z is 0, and a negative relationship between x and DV when z is 1?
The plot of this interaction shows that there is a positive relationship between x and DV for both situations (z=1 & z=0). Why this conflicts with the above result?
Thanks.
Simon
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