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Resource | Research and Data Development of a WIC Participant and Program Characteristics Longitudinal Data Set

The goal of this study was to pilot creating a WIC participant characteristics (PC) longitudinal data set with one WIC state agency. Eight state agencies with varying management information systems (MIS) platforms and high quality WIC PC 2020 data completed a survey about their MIS and longitudinal data provision capabilities. The survey assessed these state agencies’ MIS capabilities, as measured in six areas, to provide a longitudinal data set. This report describes the process of working with one WIC state agency to create a pilot WIC PC longitudinal data set of infant and child participants and the challenges and successes of this effort.

04/15/2025
Resource | Research and Data Child Nutrition Program Operations During the COVID-19 Pandemic - July 2021 through September 2022

This data collection fulfills states' reporting requirements and describes trends in program participation during the COVID-19 pandemic from July 2021 through September 2022. It is part of an ongoing study series examining child nutrition program operations, repurposed to collect waiver usage and trends in program participation and operations during the pandemic.

03/18/2025
Resource | Research and Data | Benefit Content/Cost WIC Nutrition Services and Administration Cost Study

The WIC Nutrition Services and Administration cost study examines how program funds are expended by state and local agencies to support the management and operation of WIC. The study analyzed data from a national survey of state and local agencies, cases studies, and FY 2013 WIC administrative data.

11/27/2017
Resource | Research and Data | Assessing/Improving Operations Examination of the Effect of SNAP Benefit and Eligibility Parameters on Low-Income Households

This study examines how the policies that determine benefit levels for the USDA’s Supplemental Nutrition Assistance Program compare to current low-income spending patterns by analyzing the expenditures of low-income households across the United States in 2013 and 2014.

10/27/2017
Resource | Research and Data | Payment Accuracy and Program Integrity Direct Certification in the NSLP State Implementation Progress, SY 2010-11 Report to Congress

This report responds to the requirement of PL 110-246 to assess the effectiveness of state and local efforts to directly certify children for free school meals. Under direct certification, children are determined eligible for free school meals without the need for household applications by using data from other means-tested programs. 

11/02/2011
Resource | Research and Data | Food/Nutrient Analysis WIC Food Packages Policy Options

This study describes some of the choices state agencies made as they exercised the flexibility offered during the implementation and describes the resulting food packages.

06/01/2011
Resource | Research and Data | Payment Accuracy and Program Integrity Direct Certification in the NSLP: State Implementation Progress - Report to Congress

This report responds to the legislative requirement of PL 110-246 to assess the effectiveness of state and local efforts to directly certify children for free school meals. Under direct certification, children are determined eligible for free school meals without the need for household applications by using data from other means-tested programs. 

10/01/2009
Page updated: September 16, 2025