JSM 2004 - Toronto

Abstract #300814

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Activity Number: 76
Type: Topic Contributed
Date/Time: Monday, August 9, 2004 : 8:30 AM to 10:20 AM
Sponsor: Section on Survey Research Methods
Abstract - #300814
Title: The Effects of Oversampling on the National Crime Victimization Survey
Author(s): Katrina Washington*+ and Barbara Blass and Karen King
Companies: U.S. Census Bureau and U.S. Census Bureau and U.S. Census Bureau
Address: 4700 Silver Hill Rd., Washington, DC, 20233,
Keywords: NCVS ; oversampling ; crime
Abstract:

In an ongoing effort to find more efficient and cost-effective ways to conduct the NCVS, the Bureau of Justice Statistics (BJS) has asked the Bureau of the Census to research the implications of oversampling within Primary Sampling Units (PSUs) that have high Uniform Crime Reporting (UCR) rates. The 2000 sample design for the NCVS is a self-weighting design. If oversampling is done, this design would have to be manipulated prior to the sample being released in the field. Since BJS is not interested in increasing their overall housing unit sample size, the process of oversampling is being explored as a type of reallocation, where two different methods of reallocating sample from PSUs with low crime rates to PSUs with high crime rates are explored. Both of these methods of reallocation are being simulated using NCVS data from 1999-2001. These simulations are being used to draw conclusions about the effects that oversampling may have if implemented as part of the 2000 sample design for the NCVS. This paper will present what effects this change in design could have on the crime estimates, variances, and CVs for the NCVS.

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