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Activity Number:
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145
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Type:
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Contributed
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Date/Time:
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Monday, August 7, 2006 : 10:30 AM to 12:20 PM
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Sponsor:
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Section on Survey Research Methods
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| Abstract - #306264 |
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Title:
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An Examination of Poststratification Techniques for the Behavioral Risk Factor Surveillance System
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Author(s):
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Michael P. Battaglia*+ and Martin R. Frankel and Michael W. Link
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Companies:
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Abt Associates Inc. and Abt Associates Inc. and Centers for Disease Control and Prevention
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Address:
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55 Wheeler Street, Cambridge, MA, 02138,
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Keywords:
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raking ; weighting methodology ; current population survey ; mean squared error
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Abstract:
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Random-digit-dialing surveys such as the Behavioral Risk Factor Surveillance System typically poststratify on age by gender using control totals from a source such as the 2000 Census, the Current Population Survey, or the American Community Survey. Using logistic regression and CHAID we identified key main effect demographic variables and important two-factor interactions associated with several health risk factor outcomes measured in the BRFSS. A procedure was developed to construct control totals, which were consistent with estimates of age and gender obtained from a commercial source and distributions of other variables from the CPS. Raking was used to incorporate main effects and two-factor interaction margins into the weighting of the BRFSS data. The risk factor estimates were compared with those based on the current BRFSS weighting methodology and MSE estimates were developed.
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