st: Weighted kappa for multiple raters

[Paul Jack Karanicolas <pjkarani@uwo.ca>]

Hello Statalisters,

I would like to calculate a quadratic-weighted kappa (with standard 
error) for a dataset that includes 18 raters, 50 subjects, and 4 
categories of response.  Currently my data is set up with the first 
column being the subject ID #s, and the next 18 columns being the 
raters' responses for each subject, from 1-4.

It seems to me like a weighted kappa can only be calculated in Stata 
for 2 raters...  I am relatively new to Stata, so I'm not sure if I'm 
missing something simple or if I need more complex programming.  Any 
suggestions for this problem would be much appreciated.

Thanks, Paul

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