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Re: st: RE: Interobserver agreement for continuous variables


From   Nitin Jain <drnitinjain@yahoo.com>
To   statalist@hsphsun2.harvard.edu, n.j.cox@durham.ac.uk, srmillis@mindspring.com
Subject   Re: st: RE: Interobserver agreement for continuous variables
Date   Thu, 17 Oct 2002 21:43:51 -0700 (PDT)

Hi Nick and Scott,
Thank you for the response. But the concord and other
tests contained in it are only for 2 observers/raters.
I am looking for something that calculates
interobserver agreement for a continuous variable WHEN
THERE ARE MORE THAN 3 RATERS AND THE number of raters
vary for each subject ?
I look forward to hearing from you.
Nitin

--- Nick Cox <n.j.cox@durham.ac.uk> wrote:
> Nitin Jain
> 
> > 1. Is there a way in STATA to compute the
> > interobserver/interrater agreement/variability for
> a
> > continuous variable (equivalent of the kappa
> statistic
> > for categorical variable)?
> 
> [R] kappa points to -concord- as a contribution in
> this territory. 
> -findit concord- shows the historical trail. Pick 
> the latest software, although the first write-up is 
> the fullest. 
> 
> In addition to the graphs and measures computed
> by -concord-, let me add a reference to the
> -vplplot- 
> program on SSC and the really excellent paper 
> 
> McNeil, D.R. 1992. On graphing paired data. 
> American Statistician 46, 307-11.
> 
> which lies behind it. 
> 
> Nick 
> n.j.cox@durham.ac.uk 
> 
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=====
Nitin Jain, MBBS, MSPH
Research Associate,
Duke University, Durham, NC 27710
(919) 684-5603
School of Public Health
University of North Carolina at Chapel Hill
(919)968-9828

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