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Re: st: xtlogit, margins

From   "JVerkuilen (Gmail)" <>
Subject   Re: st: xtlogit, margins
Date   Wed, 7 Nov 2012 09:03:30 -0500

On Mon, Nov 5, 2012 at 4:28 PM, Austin Nichols <> wrote:

> Personally, I prefer log odds to odds or probabilities, though odds
> are usually better
> for decision-making (playing poker, or evaluating a medical test result).

There are some reasons to suppose that log-odds is better perceived
than odds ratios or probabilities because they concatenate in a way
that is psychophysically coherent, that is they add linearly. The odds
ratio makes sense as an approximation of relative risk so that's
useful when the relative risk is desirable. None of the effect size
measures are magic bullets, alas.

JVVerkuilen, PhD

"Thus the typical citizen drops down to a lower level of mental
performance as soon as he enters the political field. He argues and
analyzes in a way which he would readily recognize as infantile within
the sphere of his real interests. He becomes a primitive again. His
thinking becomes associative and affective."  ---Joseph A. Schumpeter,
Capitalism, Socialism and Democracy, 1950, p. 262.
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