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Re: st: Chi^2 Output Interpretation


From   Ngozi Adeleye <ngozi725@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Chi^2 Output Interpretation
Date   Thu, 19 Dec 2013 15:07:38 +0000

Ngozi

On Thu, Dec 19, 2013 at 2:31 PM, Maarten Buis <maartenlbuis@gmail.com> wrote:
> On Thu, Dec 19, 2013 at 3:05 PM, Ngozi Adeleye wrote:
>> I have this Chi^2 output but don't know how to interpret the result.
>>
>> Question: For the following pairs of variables test whether they are
>> independent:     Are blacks associated with marriage?
>>
>> command:                tab black married, chi
>>
>> Result:   Pearson chi2(1) = 0.2506               Pr = 0.617
>
> This is a test, so the first thing you need to find out is what the
> null hypothesis is. In this case it is that there is no association,
> or more specificly, that the odds ratio(s) is (are) 1. Your p-value is
> larger then any conventional cut-off point (e.g. .10, .05, or .01), so
> you failed to reject the hypothesis that there is no association. All
> those negations are linguisticly awkward, but they are important. What
> you found is an absence of evidence, which is not the same thing as
> evidence of absence.
>
> Hope this helps,
> Maarten
>
> ---------------------------------
> Maarten L. Buis
> WZB
> Reichpietschufer 50
> 10785 Berlin
> Germany
>
> http://www.maartenbuis.nl
> ---------------------------------
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