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Re: st: RE: RE: interaction between two continuous variables


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: RE: interaction between two continuous variables
Date   Wed, 20 Sep 2006 21:36:37 +0100 (BST)

---Sami asked:
> I have the following model y continuous , x1 x2 continuous
> 
> I do a regression  with
> 
> reg y cx1 cx2 cx1*cx2
> 
> with
> cx1= x1 -mean (x1)
> cx2= x2 -mean (x2)
> 
> How to interpret the parameter of cx1*cx2 ?

--- Jason Yackee <jyackee@law.usc.edu> wrote:
> the question doesn't seem to have a lot to do with Stata

The Statalist FAQ states that: "The appropriate subjects for discussion
on Statalist are: Stata, and statistics". So this post seems
appropriate te me, in particular since the questions is about
interpreting output from Stata . 

> there is a very good and clear discussion of how to interpret
> multiplicative interaction effects (in the context of the political
> science literature) in a recent article by Bill Clark et al,
> available at http://homepages.nyu.edu/~mrg217/interaction.html.
 
Addiationally Richard Williams has several nice lectures on this
subject which are availabel on:
http://www.nd.edu/~rwilliam/xsoc593/index.html

HTH,
Maarten

-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting adress:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


		
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