[Mediation-information] Fwd: Moderated mediation / mediated moderation using the mediation package

Kosuke Imai kimai at Princeton.EDU
Sat Oct 6 16:31:02 CEST 2012


FYI.

Department of Politics
Princeton University
http://imai.princeton.edu

Begin forwarded message:

> From: Teppei Yamamoto <teppei at mit.edu>
> Subject: Re: Moderated mediation / mediated moderation using the mediation package
> Date: October 5, 2012 8:39:27 PM EDT
> To: Patrick S Forscher <schnarrenber at wisc.edu>
> Cc: dustin tingley <dtingley at gov.harvard.edu>, Kosuke Imai <kimai at princeton.edu>, Markus Brauer <brauer2 at wisc.edu>
> 
> Hi Patrick,
> 
> Yes, we have implemented moderated mediation as of version 4.0 (the package is now at 4.1.2). Please take a look at Section 3.2 of our updated vignette about the implementation; essentially you fit the mediator and/or outcome models with appropriate interaction terms, and tell the mediate function what values of the moderators you want to condition on.
> 
> Thank you for your good words on our package! Feedback, feature requests, etc. are always welcome.
> 
> Best,
> Teppei
> 
> Patrick S Forscher wrote:
>> Hi all,
>> 
>> I emailed you all about a year ago about whether it was possible to
>> implement moderated mediation / mediated moderation models using the
>> mediation package you developed. I am interested because Prof Markus
>> Brauer and Prof John Curtin are teaching a graduate methods class in the
>> Psychology Department here at UW-Madison, and I am helping teach the lab
>> section of this class. We'd like to teach our students an R
>> implementation of these models that is relatively easy to use. Last time
>> I contacted you all about this issue, Dustin mentioned that you all
>> might investigate implementing these models in the mediation package
>> sometime in the future. Have you all made any progress on this front?
>> 
>> (Also, I should mention that I loved the fact last year that mediate()
>> was so clean and easy to use. I ended up mentioning this package in a
>> talk I gave on mediation in one of the social psychology brownbags last
>> semester. I have also noticed that Prof Imai is giving a talk here at
>> UW-Madison in December, and I'm looking forward to seeing it!)
>> 
>> Regards,
>> 
>> --
>> Patrick S Forscher
>> PhD Candidate
>> University of Wisconsin-Madison
>> 
> 
> -- 
> ====================================
> Teppei Yamamoto
> Assistant Professor
> Department of Political Science
> Massachusetts Institute of Technology
> http://web.mit.edu/teppei/www/
> ====================================



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