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Mplus Discussion > Growth Modeling of Longitudinal Data >
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 JM posted on Thursday, October 29, 2009 - 10:37 am
Hi, I'm conducting parallel-process modeling, and I'm wondering how to find/calculate the effect size (cohen's d) from the output for extent of change over time, as well as the effect size of a treatment covariate regressed on slopes? Is it the standarized parameter estimate under the STD column? Thank you!
 Linda K. Muthen posted on Thursday, October 29, 2009 - 2:33 pm
In the regression of the slope on a binary treatment variable, STD can be used as an effect size. It is the slope mean difference in slope standard deviation units.
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