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Re: st: RE: Kappa query - unequal distribution of scores
From
"Seyi Soremekun" <[email protected]>
To
<[email protected]>
Subject
Re: st: RE: Kappa query - unequal distribution of scores
Date
Thu, 22 Sep 2011 10:45:52 +0100
I am away from the 21st September until the 12th October. Please direct any urgent enquiries to Linda Vesel ([email protected]).
Seyi
>>> "Seyi Soremekun" <[email protected]> 09/22/11 10:40 >>>
I am away from the 21st September until the 12th October. Please direct any urgent enquiries to Linda Vesel ([email protected]).
Seyi
>>> Nick Cox <[email protected]> 09/22/11 10:36 >>>
I'd think about bootstrapping here. Other advice is to use "Stata" not "STATA".
On Thu, Sep 22, 2011 at 10:06 AM, Downs, Sara
<[email protected]> wrote:
> Hi,
>
> I am trying to calculate agreement between 2 distributions of scores.
> There are 3 possible scores: One score predominates and the other 2 are
> extremely rare :
>
> tab rev1 rev2
>
> | rev2
> rev1 | 0 1 2 | Total
> -----------+---------------------------------+----------
> 0 | 1 6 0 | 7
> 1 | 13 57 3 | 73
> 2 | 0 2 1 | 3
> -----------+---------------------------------+----------
> Total | 14 65 4 | 83
>
>
> . kap rev1 rev2
>
> Expected
> Agreement Agreement Kappa Std. Err. Z Prob>Z
> -----------------------------------------------------------------
> 71.08% 70.47% 0.0206 0.0852 0.24 0.4042
>
>
> I understand that the usual kappa statistic is not reliable in this
> situation . Is there any way in STATA that I can adjust for the high
> expected frequency. I am using STATA 10.1.
>
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