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st: Identifying unique values within duplicate IDs

From   Rebecca M Sacks <>
To   <>
Subject   st: Identifying unique values within duplicate IDs
Date   Wed, 27 Mar 2013 13:33:05 -0700

Hi all!
I'm dealing with a large dataset that had some errors occur when data were being recorded. Although each ID should only have one record, most of them have two. Anyway, I'm trying to get a list of IDs where the ID variable is a duplicate but the values for a second variable (PHQ9 score) are different within the duplicate ID. Any advice would be greatly appreciated.

Rebecca Sacks
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