JSM 2005 Online Program

Abstract #304815

This is the preliminary program for the 2005 Joint Statistical Meetings in Minneapolis, Minnesota. Currently included in this program is the "technical" program, schedule of invited, topic contributed, regular contributed and poster sessions; Continuing Education courses (August 7-10, 2005); and Committee and Business Meetings. This on-line program will be updated frequently to reflect the most current revisions.

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Activity Number:	146
Type:	Contributed
Date/Time:	Monday, August 8, 2005 : 10:30 AM to 12:20 PM
Sponsor:	Section on Survey Research Methods
Abstract - #304815
Title:	Item Imputation Made Easy
Author(s):	Andrea R. Piesse*+ and David R. Judkins and Zizhong Fan
Companies:	Westat and Westat and Westat
Address:	1650 Research Blvd, Rockville, MD, 20850,
Keywords:	Cyclic n-partition Hotdecks ; Covariance Preservation
Abstract:	In June 2002, the Centers for Disease Control and Prevention (CDC) launched a multimedia advertising campaign designed to encourage physical activity and healthy behaviors among 9 to 13 year olds in the United States using the brand and tagline, "VERB. It's What You Do." The primary vehicle for assessing the impact of these efforts is the Youth Media Campaign Longitudinal Survey (YMC). Baseline parent-child interviews were conducted in the spring of 2002 and followup surveys in the next two years. In the YMC, as in most surveys, the responses to some data items were not obtained for all interviews. This paper discusses the application of an innovative new approach to item imputation in the second followup survey of 2004. The method takes advantage of both longitudinal and cross-sectional data, uses hot-deck imputation with modeling to identify nearest neighbors, and respects questionnaire skip patterns. The procedure is implemented through a highly automated SAS macro, given survey specific input parameters.

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