[Mediation-information] Question regarding mediator function

Ma Ya (Boya) bma at empiricaleducation.com
Sun Nov 6 07:09:39 CET 2011


Thank you, Kosuke.

I will look into the paper. That should be on your website I assume?

Boya Ma


On Fri, Nov 4, 2011 at 8:17 PM, Kosuke Imai <kimai at princeton.edu> wrote:

> Dear Boya,
>
> Unfortunately, our package does not yet support lmer functions.  If you
> have some programming experience in R, however, you should be able to
> implement our general algorithm (see our Psychological Methods paper)
> relatively easily with any model including mixed effects models.
>
> Best,
> Kosuke
>
> Department of Politics
> Princeton University
> http://imai.princeton.edu
>
> On Nov 4, 2011, at 2:10 PM, Ma Ya (Boya) wrote:
>
> > Hello, Mr. Kosuke Imai;
> >
> > I am working on a projects that we would like to look at the mediation
> effect of the number of math video a student watched on their performance
> on Algebra test. We randomized on class level for this project.
> >
> > We are using a mixed model design, students are clustered within
> classes, so classes are modeled random effect.This requires a lmer function
> in R, so my question is will the mediate function takes results from lmer
> funcation, cause on the powerpoint you have showed example of a one level
> lm funcation.
> >
> > Thank you.
> >
> > Boya Ma
> > Manager of design and analysis
> > Empirical Education Inc.
>
>
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