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Activity Number:
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264
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Type:
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Contributed
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Date/Time:
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Tuesday, August 5, 2008 : 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 - #300595 |
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Title:
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Where Have All the Smokers Gone? A Simple Strategy for Targeting Rare Subgroups for RDD Studies
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Author(s):
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Mansour Fahimi*+ and Douglas Currivan and Jeniffer I. Perez and Matthew Farrelly
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Companies:
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Marketing Systems Group and RTI International and RTI International and RTI International
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Address:
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565 Virginia Drive, Fort Washington, PA, 19034-2706,
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Keywords:
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RDD ; CART ; Oversampling ; Design Effect ; Rare Subgroups
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Abstract:
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RDD studies are facing growing challenges, including eroding rates of coverage and response. Moreover, when the study population includes rare subgroups, surveys can require significant resources for screening. It is estimated that about 18% of New York adults are current smokers, where per CDC a current smoker has smoked at least 100 cigarettes and currently smokes. In order to increase the rate of locating smokers in New York, a segmentation technique was applied to prior survey data to identify high smoking areas. Subsequently, telephone exchanges associated with such areas were targeted to increase the number of interviews with smokers. The employed disproportionate stratified sample design was implemented while managing the anticipated variance inflation due to unequal selection probabilities. This paper provides an overview of this design along with a summary of key findings.
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