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E-raamat: Estimating Eligibility and Participation for the WIC Program: Phase I Report

  • Formaat: 98 pages
  • Ilmumisaeg: 14-Aug-2001
  • Kirjastus: National Academies Press
  • Keel: eng
  • ISBN-13: 9780309510769
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  • Formaat: 98 pages
  • Ilmumisaeg: 14-Aug-2001
  • Kirjastus: National Academies Press
  • Keel: eng
  • ISBN-13: 9780309510769
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Each year the U.S. Department of Agriculture (USDA) must estimate the number of people who are eligible to participate in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC). These USDA estimates have come under critical scrutiny in part because the number of infants and postpartum women who have actually enrolled in the program has exceeded the number estimated to be eligible by as much as 20 to 30 percent. These high "coverage rates" have led some members of Congress to conclude that some people who participate are truly ineligible, and that funding could be reduced somewhat and still meet the needs of truly eligible persons who wish to participate. But some advocates and state WIC agencies believe that the estimates of the number of eligible persons are too low and more people who are eligible and want to participate could do so.



In response to these concerns, the Food and Nutrition Service (FNS) of the USDA asked the Committee on National Statistics of the National Research Council to convene a panel of experts to review the methods used to estimate the number of people nationwide who are eligible and likely to participate in the WIC program. The panel's charge is to review currently used and alternative data and methods for estimating income eligibility, adjunctive eligibility from participation in other public assistance programs, nutritional risk, and participation if the program is fully funded.



Table of Contents



Front Matter Executive Summary 1. Introduction 2. Program Eligibility 3. Current Methods for Estimating Eligibility and Full-Funding Participation 4. Potential Biases in Eligibility Estimates 5. Estimates of Full-Funding Participation 6. Methodological Issues for Future Consideration References Appendix A: Glossary Appendix B: Meeting and Workshop Agendas Appendix C: March Current Population Survey Income Supplement Appendix D: The TRIM3 Microsimulation Model Appendix E: Biographical Sketches of Panel Members and Staff
Executive Summary 1(1)
Current Methodology
2(2)
Conclusions and Recommendations
4(4)
Methodological Issues for Further Consideration in Phase II of the Study
8(1)
Introduction
9(4)
Panel Charge and Approach
10(1)
WIC Program Background
11(2)
Program Eligibility
13(8)
Categorical Eligibility
14(1)
Income Eligibility
15(4)
Nutritional Risk Determination
19(1)
Summary
19(2)
Current Methods for Estimating Eligibility and Full-Funding Participation
21(9)
Estimates of the Number of Fully Eligible Persons
21(3)
Estimation of Full-Funding Participation
24(1)
Coverage Rates and Prediction Error
25(5)
Potential Biases in Eligibility Estimates
30(21)
Accuracy of the Current Population Survey
31(2)
Adjunctive Eligibility
33(8)
Use of Annual Versus Monthly Income
41(2)
Six-Month Certification Period for Children
43(1)
Defining the Economic Unit
44(2)
Estimation of the Prevalence of Nutritional Risk
46(3)
Overall Conclusion
49(2)
Estimates of Full-Funding Participation
51(3)
Methodological Issues for Future Consideration
54(5)
Alternative Datasets for Estimating Income Eligibility
55(1)
Estimates of the Number of Eligible People in the Territories
56(1)
Estimation of Eligible Pregnant Women
56(1)
Estimation of Eligible Postpartum Women
57(1)
Cnfidence Intervals for Eligibility Estimates
58(1)
REFERENCES 59
APPENDICES
A Glossary
63
B Meeting and Workshop Agendas
66
C March Current Population Survey Income Supplement
71
D The TRIM3 Microsimulation Model
74
E Biographical Sketches of Panel Members and Staff
82


Panel to Evaluate the USDA's Methodology for Estimating Eligibility and Participation for the WIC Program, Michele Ver Ploeg and David M. Betson, Editors, Committee on National Statistics, National Research Council