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Re: st: Interobserver agreement for continuous variables


From   "Scott R. Millis" <srmillis@mindspring.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Interobserver agreement for continuous variables
Date   Thu, 17 Oct 2002 15:16:36 -0600

You might want to consider Lin's concordance coefficient and Bland & Altman plots.
findit concordance yields:


Search of official help files, FAQs, and STBs

SJ-2-2 st0015 . . . . . . . A note on the concordance correlation coefficient
(help concord if installed) . . . . . . T. J. Steichen and N. J. Cox
Q2/02 SJ 2(2):183--189
correction based on an erratum for Lin's concordance
correlation coefficient, and assessment of the impact of
the change

STB-58 sg84.3 . . . . Concordance correlation coefficient: minor corrections
(help concord if installed) . . . . . . T. J. Steichen and N. J. Cox
11/00 p.9; STB Reprints Vol 10, p.137
small bug fixes affecting user control through the connect(),
symbol(), and pen() options

STB-55 sg138 . . . . . . Bootstrap inferences about measures of correlation
(help bootcor if installed) . . . . . . . . . . . . . . . D. J. Neal
5/00 pp.17--20; STB Reprints Vol 10, pp.149--152
provides bootstrap confidence interval and test for the
difference of two Pearson's R, intraclass correlations, or
concordance coefficients

STB-54 sg84.2 . . . . Concordance correlation coefficient: update for Stata 6
(help concord if installed) . . . . . . T. J. Steichen and N. J. Cox
3/00 pp.25--26; STB Reprints Vol 9, pp.169--170
updated to version 6 with corrections and new option for
saving the standard normal plot

STB-45 sg84.1 . . . . . . . . Concordance correlation coefficient, revisited
(help concord if installed) . . . . . . . . T. Steichen and N. J. Cox
9/98 pp.21--23; STB Reprints Vol 8, pp.143--145
improvements to the concord command

SR Millis


Nitin Jain wrote:

Hi,
Question:
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)?
Thank you,
Nitin

=====
Nitin Jain, MBBS
School of Public Health
University of North Carolina at Chapel Hill
(919)968-9828

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