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Re: st: binary mediation command
From
Pina Valle <[email protected]>
To
[email protected]
Subject
Re: st: binary mediation command
Date
Sun, 03 Jul 2011 15:44:09 -0400
Even when using percentile confidence intervals, is this output relevant since I am trying to determine the proportion mediated by the indirect effect?
Indirect effects with binary response variable evercoh
indir_1 = .00601173 (adrel, binary)
total indirect = .00601173
direct effect = .10223182
total effect = .10824356
c_path = .10680445
proportion of total effect mediated = .05553895
ratio of indirect to direct effect = .05880491
Binary models use logit regression
Thanks
Pina
----- Original Message -----
From: Philip Ender <[email protected]>
Date: Wednesday, June 15, 2011 4:21 pm
Subject: Re: st: binary mediation command
To: [email protected]
> Pina Valle wrote:
>
> >I am trying to test mediation with a dichotomous outcome, and I
> have looked around and found a command in >STATA called
> binary_mediation. However, there isn't really any indication in the
> notes I found on whether the >mediation is significant. Here is an
> example of my output along with the commands that I have used:
> >...
>
> The documentation for -binary_mediation states: This program does not
> provide standard errors or statistical tests for coefficients.
> Bootstrap standard errors and confidence intervals are recommended for
> this purpose.
>
> Using either the percentile or bias corrected confidence intervals,
> whichever you prefer, intervals that contain zero are not significant
> at the stated level while those that do not contain zero are
> significant. Traditional statistical tests are likely to lead to
> biased p-values. I think the confidence interval approach is safer.
>
> Phil
> --
> Phil Ender
> UCLA Statistical Consulting Group
>
> *
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>
Giuseppina Valle, M.S.
Department of Sociology
Doctoral Candidate
Florida State University
526 Bellamy Building
Tallahassee, FL 32306-2240
Email: [email protected]
*
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