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Mplus Discussion > Structural Equation Modeling >
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 Yolande Tra posted on Wednesday, February 17, 2010 - 1:06 am
The output of a mediation analysis is as follow
STANDARDIZED MODEL RESULTS
STDYX Standardization
Two-Tailed
Estimate S.E. Est./S.E. P-Value
Y ON
GROUP 0.047 0.239 0.195 0.845
X1 -0.315 0.152 -2.063 0.039
where GROUP is dichotomous (control and treatment), X1 and Y are continuous. How would you interpret the estimate -0.315 for control group?

Thank you for your help.
Y
 Linda K. Muthen posted on Wednesday, February 17, 2010 - 5:06 pm
I'm not sure what your question is. If y is continuous, -.315 is a standardized linear regression coefficient.
 Yolande Tra posted on Friday, February 19, 2010 - 12:58 pm
I am sorry for the unclear question. Group has two values 1: treatment, 0: control.
Group is not significant. I believe -0.315 is the change in Y (in standard deviation units) when X1 increases by 1 std deviation unit, controlling for group. Does this mean it is the effect of X1 on Y for both treatment and Control?

Thank you,
Y
 Linda K. Muthen posted on Friday, February 19, 2010 - 2:52 pm
That sounds correct.
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