st: loneway and intraclass correlation

[Joe Trubisz <jtrubisz@mac.com>]

In Martin Bland's book on medical statistics, he says:

Sometimes we have pairs of observations where there is no obvious  
choice between X and Y. The choice of X and Y is arbitrary.

He then goes on to discuss intraclass correlation.

I have a set of data which meets this criteria and if I run 'loneway  
x y' and 'loneway y x', I get 2-different ICC values, which I can  
expect.

However...what I don't know is what to do with the different values.  
Is one better than the other? How do I select which ICC value is  
actually the one I should be using?

Thanks,
Joe
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