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Date:         Sun, 9 Oct 2005 22:29:08 -0700
Reply-To:     Michael Healy <>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Michael Healy <>
Subject:      Missing data in regression query
In-Reply-To:  <026501c5cca8$346fee90$>
Content-type: text/plain; charset="US-ASCII"

Hi, This is a stats question. I have a data set with 2,000 cases and many of the variables which are going to be used as predictors in multiple regression modeling are missing up to 50% of their values. I probably have about 30% listwise complete data, so I don't want to model just the complete cases. I also don't want to impute scores because of the vast amount of missingingness. Does anyone have any hints/suggestions/resources/etc. For dummy coding missing values or other creative ways of dealing with data like this? Thanks, Mike Healy

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