R help - Feb 2006 - latent class modle for rater agreement

Hello there,

I would like to test the agreement amongst 6 raters for nominal data on
a scale from 1-4, and conduct a latent class analysis in R. How should
the data be formatted and what code should I use?

Thank you very much

Lisa Wang
Princess Margaret Hospital
Biostatistics
tel:416 946 4501

Typing latent class on the R project search page gives you at least four
packeges that do latent class models mmlcr, flexmix, gllm, depmix etc
Hth, ingmar

> From: Lisa Wang <lisawang at uhnres.utoronto.ca>
> Organization: UHN\RIS
> Date: Thu, 09 Feb 2006 16:31:04 -0500
> To: R-Help <r-help at stat.math.ethz.ch>
> Subject: [R] latent class modle for rater agreement
> 
> Hello there,
> 
> I would like to test the agreement amongst 6 raters for nominal data on
> a scale from 1-4, and conduct a latent class analysis in R. How should
> the data be formatted and what code should I use?
> 
> Thank you very much
> 
> Lisa Wang
> Princess Margaret Hospital
> Biostatistics
> tel:416 946 4501
> 
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Lisa Wang wrote:
> I would like to test the agreement amongst 6 raters for nominal data on
> a scale from 1-4, and conduct a latent class analysis in R. How should
> the data be formatted and what code should I use?
This kind of agreement test seems to call for Krippendorf's alpha. See 
http://www.asc.upenn.edu/usr/krippendorff/webreliability2.pdf