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re: st: Intra-individual variation


From   "Airey, David C" <david.airey@vanderbilt.edu>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   re: st: Intra-individual variation
Date   Thu, 5 Jan 2012 20:20:06 -0600

.

The statistic "intraclass correlation" might be helpful here.

For example see:

<http://en.wikipedia.org/wiki/Intraclass_correlation>.

You can get the ICC using the Stata command -loneway-.


> Hi there
> Is there a way of determining intra-individual variation in STATA? I
> have a set of 2 measurements per individual (one measurement at 2
> different time points), and I have read some articles expressing
> intra-individual variation as a percentage. Does this mean it is the
> difference between the 2 measurement just expressed as a percentage?
> Or is it more complicated?
> Thank you
> Johan


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