JSM 2005 Online Program

Abstract #302962

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:	489
Type:	Contributed
Date/Time:	Thursday, August 11, 2005 : 8:30 AM to 10:20 AM
Sponsor:	General Methodology
Abstract - #302962
Title:	Weighting Challenges when Dealing with a Large-scale Longitudinal Survey
Author(s):	Charles Tardif*+
Companies:	Statistics Canada
Address:	123 rue du Mont Fleuri, Gatineau, QC, J8R 2G1, Canada
Keywords:	Longitudinal survey ; weighting ; non-response adjustment
Abstract:	The National Longitudinal Survey of Children and Youth (NLSCY) is a complex and large-scale longitudinal survey developed to understand the development and well-being of Canadian children from childhood to adulthood. The survey began in 1994 and is collecting data every two years from a representative sample. The data for the first five cycles of NLSCY are now available to allow researchers to conduct analysis. Throughout the first five cycles of NLSCY, numerous challenges were encountered when deriving the longitudinal and cross-sectional design weights. To understand its impact on weighting, the NLSCY sample design will be presented. Some of the weighting challenges resulting from this complex sample will be presented briefly. Then, the focus will be on the nonresponse adjustments over the five cycles for the original cohort. Estimates for key variables and their associated variance will be presented using different series of weights to assess the quality and representativity of the weights produced and to determine the weighting strategy for cycle six and beyond.

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