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Re: st: Ologit question


From   "JVerkuilen (Gmail)" <jvverkuilen@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Ologit question
Date   Wed, 31 Oct 2012 09:56:20 -0400

On Wed, Oct 31, 2012 at 9:23 AM, Anat (Manes) Tchetchik
<anatmanes@gmail.com> wrote:
> Dear statalist,
>
> Sorry for the probably trivial question
> I ran an Ologit and received the following cutoffs:
>
>                 Coef.         Std. Err.                       95%
> Conf. Interval]
>  /cut1 |  -1.798009   2.900799                     -7.483471    3.887453
>  /cut2 |   .7973023   2.793147                     -4.677166    6.271771
>  /cut3 |   2.902347   2.794626                      -2.57502    8.379713
> which means that the cutoffs are not significantly different.
> Does it mean that the entire model is worthless?

Before you jump to any conclusions about the machine not working make
sure that the cord's plugged in. Did you forget a weighting term or
did listwise deletion dump most of your cases? Standard errors of
these cutoffs should be proportional to 1/sqrt(n) and these are huge.
Usually what happens with a crappy model is that the terms end up not
separated, but that's not what you have here.
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