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Re: Re: st: binary mediation command
From
Pina Valle <[email protected]>
To
[email protected]
Subject
Re: Re: st: binary mediation command
Date
Tue, 05 Jul 2011 12:37:21 -0400
Philip,
Yes that was helpful, as that is what my co-author and I believed as well from a website on binary mediation. One last question..when using the bootstrap CI, and getting a CI for the indirect effect that does not include zero, we then can report proportion of total effect mediated. However, proportion of total effect mediation is -.084. Would we still report 8.5% or does the negative mean something else?
Thank you.
Pina
----- Original Message -----
From: Philip Ender <[email protected]>
Date: Tuesday, July 5, 2011 11:12 am
Subject: Re: Re: st: binary mediation command
To: [email protected]
> Dear Pina,
>
> You didn't include the bootstrap results for the direct and indirect
> effects so I can only give general advice. Check the bootstrap
> confidence intervals for your direct and indirect effects. In
> particular, look at your indirect effects because it seems rather
> small. If the confidence interval does not include zero then you can
> report the proportion of total effect mediated. If, on the other
> hand, the confidence interval includes zero then the proportion
> mediated is essentially meaningless since the indirect effect is not
> reliably different from zero.
>
> I hope this response helps.
>
>
> Pina Valle wrote:
> >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
>
> --
> 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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