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RE: st: Moderated mediation with multilevel data

From   Cameron McIntosh <>
Subject   RE: st: Moderated mediation with multilevel data
Date   Mon, 27 Feb 2012 17:43:12 -0500

I can offer some papers, if it's any use:
Little, T.D., Card, N.A., Bovaird, J.A., Preacher, K.J., & Crandall, C.S. (2007). Structural Equation Modeling of Mediation and Moderation With Contextual Factors. In T. D. Little, J. A. Bovaird, & N. A. Card (Eds.), Modeling contextual effects in longitudinal studies (pp. 207-230). Mahwah, NJ: Lawrence Erlbaum Associates. ;

Bauer, D.J., Preacher, K.J. & Gil, G.M. (2006.) Conceptualizing and testing random indirect effects and moderated mediation in multilevel models: new procedures and recommendations. Psychological Methods, 11, 142-163.
> Date: Mon, 27 Feb 2012 13:18:40 -0800
> From:
> To:
> Subject: st: Moderated mediation with multilevel data
> Hi, all.
> I have been using two Stata FAQs ("How can I do moderated mediation in 
> Stata? and "How can I perform mediation with multilevel data?").
> I am getting stuck on one aspect of the FAQ for moderated mediation.  In 
> Model 3, it probes mediation at levels of the moderator but the 
> interaction is nonsignificant in the sample output they provide. Can 
> anyone explain that? (I contacted the authors directly without a reply). 
> In my own data, the interaction of mw is nonsignificant, but when I run 
> the nlcom and bootstrap the results, each level is significant.
> The second issue is that my data is multilevel. Does anyone know of a 
> way to run moderated mediation in Stata with multilevel data? When I 
> ignore the levels, I find mediation but I want to confirm it as the 
> levels matter.
> Best,
> kris
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