Re: st: plotting conditional indirect effect with confidence bands

[David Torres <torresd@umich.edu>]

My particular problem is that I do not know how to graph a plot with  
the confidence bands and region of significance.  I just need  
something simple like that seen on page 214 of the article I mention  
by Preacher et al. (2007).  The function for plotting is laid out on  
page 202, equation 20.

Preacher, K., Rucker, D., & Hayes, A.  (2007).  Addressing moderated
mediation hypotheses: Theory, methods, and prescriptions.  Multivariate
Behavioral Research 42(1), 185-227.

I'm not familiar with any examples on the web, but then again perhaps  
moderated mediation is not in wide use.

Diego


--
David Diego Torres, MA(Sociology)
PhD Candidate in Sociology

2044 Population Studies Center
University of Michigan Institute for Social Research
Ann Arbor MI  48106-1248
Tel 734.763.4098
Fax 734.763.1428
torresd at umich dot edu


Quoting Sergiy Radyakin <serjradyakin@gmail.com>:

> On Tue, Dec 28, 2010 at 10:11 AM, David Torres <torresd@umich.edu> wrote:
> > Hello,
> >
> > I'm hoping someone can help me with stata code for producing a graph that
> > plots the conditional indirect effect with confidence bands.  I just
> > completed a moderated mediation analysis using Preacher et al.'s (2007) SPSS
> > macro, and have attempted to use SigmaPlot to do the graph portion as
> > Preacher did.  No success.  The program is new to me and I don't plan on
> > wasting too many hours trying to figure out what I need to do.
> >
> > Preacher, K., Rucker, D., & Hayes, A.  (2007).  Addressing moderated
> > mediation hypotheses: Theory, methods, and prescriptions.  _Multivariate
> > Behavioral Research_ _42_(1), 185-227.
> >
> > I have the component values needed:  the point estimate as well as the
> > second order variance (as page 202 of Preacher et al. highlights).  I just
> > need some advice from someone a bit more versed in Stata than I am.
> >
> > Anyone?  Anyone?
>
> What exactly the problem is ? Graphing? Math? Programming?
> If you have all the components, plug them in to the twoway statement
> below code instead of ms, msl, msh.
> Best, S.R.
>
>
> version 11
> clear
>
> sysuse sp500.dta
> lowess high date, gen(ms) bw(0.1) nodraw
> gen msl = ms*0.95
> gen msh = ms*1.05
> twoway  line msh msl date , lp("-" "-") lc(gray gray) || line high
> date, scale(0.5) lw(0.7) lc(brown)
> xline(`=date("29mar2001","DMY")',lw(1) lc(green)) yline(1100,lw(1)
> lc(green)) legend(off)
>
>
>
>
>
>
> > Diego Torres
> > *
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>
> *
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