JSM 2003 Online Program

Abstract #302009

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Activity Number:	52
Type:	Contributed
Date/Time:	Sunday, August 3, 2003 : 4:00 PM to 5:50 PM
Sponsor:	Section on Survey Research Methods
Abstract - #302009
Title:	Estimating Degrees of Freedom for Data from Complex Surveys
Author(s):	Allison Burns*+ and Jun Liu and Margaret Byron
Companies:	RTI International and Research Triangle Institute and Research Triangle Institute
Address:	3040 Cornwallis Rd., Research Triangle Park, NC, 27709,
Keywords:	degrees of freedom ; complex survey ; simulation
Abstract:	Degrees of freedom are needed when conducting certain statistical testing. However, estimating the appropriate degrees of freedom when data comes from a complex complex is not travail. The conventional method of the number of PSUs minus the number of strata can substantially overestimate the degrees of freedom, especially when the domain of interest is rare. We discuss an alternative approach and compare it to the conventional method using simulations.

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