Record-level Measures of Disclosure Risk for Survey Microdata

Elamir, Elsayed A. H. and Skinner, Chris J. (2004) Record-level Measures of Disclosure Risk for Survey Microdata , Southampton, UK Southampton Statistical Sciences Research Institute 20pp. (S3RI Methodology Working Papers, M04/02).


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Measures of disclosure risk at the record level have a variety of potential uses in statistical disclosure control for microdata. We propose a new record level measure of disclosure risk which is the probability that a unique match between a microdata record and a population unit is correct. For discrete key variables subject to no measurement error, we study this measure under the assumption of a Poisson model and a Poisson-gamma model. Moreover, we apply the approaches to a sample of microdata from the U.K. General Household Survey. The results indicate that the risk measure may be used to establish whether sample unique records are unique in the population.

Item Type: Monograph (Project Report)
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ePrint ID: 8175
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Date Deposited: 11 Jul 2004
Last Modified: 17 Apr 2017 00:07
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