The Measurement of Medicaid Coverage in the SIPP: Evidence From a Comparison of Matched Records
This paper studies the accuracy of reported Medicaid coverage in the Survey of Income and Program Participation (SIPP) using a unique data set formed by matching SIPP survey responses to administrative records from the State of California. Overall, we estimate that the SIPP underestimates Medicaid coverage in the California population by about 10 percent. The probability that a SIPP respondent who is covered by Medicaid in a given month correctly reports their coverage is around 85 percent. The corresponding probability for low-income children is higher Â– around 90 percent. Under-reporting by those who are actually in the Medicaid system is partially offset by over-reporting of coverage by people who are not. Some of these false positive responses are attributable to errors and missing data in the administrative system, rather than to problems in the SIPP. Taking account of these errors, the estimated false positive rate for the population as a whole is about 1.5 percent, and 4-5 percent for poor children.
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Volume (Year): 22 (2004)
Issue (Month): (October)
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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Lara D. Shore-Sheppard, 2005.
"Stemming the Tide? The Effect of Expanding Medicaid Eligibility on Health Insurance,"
NBER Working Papers
11091, National Bureau of Economic Research, Inc.
- Lara D. Shore-Sheppard, 2005. "Stemming the Tide? The Effect of Expanding Medicaid Eligibility on Health Insurance," Department of Economics Working Papers 2005-06, Department of Economics, Williams College.
- David Card & Lara D. Shore-Sheppard, 2004.
"Using Discontinuous Eligibility Rules to Identify the Effects of the Federal Medicaid Expansions on Low-Income Children,"
The Review of Economics and Statistics,
MIT Press, vol. 86(3), pages 752-766, August.
- David Card & Lara D. Shore-Sheppard, 2002. "Using Discontinuous Eligibility Rules to Identify the Effects of the Federal Medicaid Expansions on Low Income Children," NBER Working Papers 9058, National Bureau of Economic Research, Inc.
- David Card & Lara D. Shore-Sheppard, 2003. "Using Discontinuous Eligibility Rules to Identify the Effects of the Federal Medicaid Expansions on Low Income Children," Department of Economics Working Papers 2003-09, Department of Economics, Williams College.
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