JSM 2004 - Toronto

Abstract #301963

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Activity Number: 441
Type: Contributed
Date/Time: Thursday, August 12, 2004 : 10:30 AM to 12:20 PM
Sponsor: Section on Survey Research Methods
Abstract - #301963
Title: Evaluating Alternative Disclosure Limitation Strategies for Public Use Data Files: The California Health Interview Survey's Approach
Author(s): M. Leeann Habte*+ and Jenny Chia
Companies: University of California, Los Angeles and University of California, Los Angeles
Address: 10911 Weyburn Ave., Suite 300, Los Angeles, CA, 90024,
Keywords: privacy ; confidentiality ; statistical disclosure limitation ; risk assessment ; key variables
Abstract:

Adequate protection of respondent confidentiality is crucial for surveys that release microdata to the public, yet uniform standards for disclosure limitation are lacking. Theoretical and practical approaches to risk assessment and disclosure control vary. This paper will describe the California Health Interview Survey's (CHIS) confidentiality policies and data disclosure limitation techniques for its public use data files. It will compare CHIS' approach to those of select national surveys, including the National Health Interview Survey and the National Immunization Survey. Emphasis will be placed on the factors CHIS used in evaluating the applicability of particular disclosure limitation strategies, such as differential methods of participant selection and the nature of survey information collected. The paper will discuss the implications of these strategies for researchers using CHIS data.

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