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RE: st: Simple slope analysis for non-linear models


From   Ebru Ozturk <ebru_0512@hotmail.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: Simple slope analysis for non-linear models
Date   Sun, 24 Mar 2013 12:40:01 +0200

Thank you Maarten. I followed your suggestion and it seems that I want this derivative E( y |X, y ≥ 0). But the problem is in journals I use they never mention which Tobit intepretation they implement so that's why I am struggling. 

In my model, I have one interaction term (dummy X continuous-ranges from 0 to 10) and other Xs. I would like to plot the values of true interaction effect and implied z-statistic value at each observation. After doing that I would like to show the value and significance of X’s marginal effect at selected values of the moderator Z (low, mean and high).

I use Stata 10.

Thanks, Ebru

----------------------------------------
> Date: Fri, 22 Mar 2013 12:23:58 +0100
> Subject: Re: st: Simple slope analysis for non-linear models
> From: maartenlbuis@gmail.com
> To: statalist@hsphsun2.harvard.edu
>
> On Fri, Mar 22, 2013 at 12:01 PM, Ebru Ozturk wrote:
> > I would like to say it again my question is about commands in Stata 10 not which interpretation I will do for Tobit.
>
> If you repeat a question then you should not be surprised that the
> answer will remain the same:
>
> The command depends on the interpretation. If you want one type of
> interpretation than you need to type one command, if you want another,
> you will need to type another command. The command and the
> interpretation cannot be separated. So in order to answer your
> question we first need to know which interpretation you are looking
> for.
>
> If you do not understand what I am asking of you, then take a look at
> (Breen 1996, pp. 27--30) or (Long 1997, pp. 206--210).
>
> -- Maarten
>
> Richard Breen (1996) Regression Models: Censored, Sample Selected, or
> Truncated Data. Thousand Oaks: Sage.
>
> J. Scott Long (1997) Regression Models for Categorical and Limited
> Dependent Variables. Thousand Oaks: Sage.
>
> ---------------------------------
> Maarten L. Buis
> WZB
> Reichpietschufer 50
> 10785 Berlin
> Germany
>
> http://www.maartenbuis.nl
> ---------------------------------
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