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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 | Breastfeeding Breastfeeding Intervention Design Study

While a great deal of breastfeeding promotion and support is happening in WIC at both the state and local levels, there has been no systematic effort to evaluate what might work best in the WIC setting. Within this context, FNA  contracted for a breastfeeding intervention design study with the following goals: Identify interventions to increase the incidence, duration and intensity of breastfeeding among women participating in WIC; and design an evaluation plan to examine the implementation and effectiveness of these interventions.

08/30/2004
Resource | Research and Data | Assessing/Improving Operations Measuring Competitive Foods in Schools

This “briefing report” summarizes research recently undertaken for FNA to develop a methodological basis for obtaining detailed information on the competitive foods sold in schools.

05/26/2004
Resource | Research and Data | Participation Characteristics National Survey of WIC Participants

Since 1992, FNA has produced biennial reports on WIC participant and program characteristics based on the WIC Minimum Data Set compiled from state management information systems. The 20 items included in the MDS are collected as part of ongoing WIC operations and consist primarily of in formation related to participant eligibility.

10/01/2001
Resource | Research and Data | Food/Nutrient Analysis School Nutrition Dietary Assessment Study - II

This report summarizes findings of the second School Nutrition Dietary Assessment Study. The study provides up-to-date information on the nutritional quality of meals served in public schools that participate in the National School Lunch Program and the School Breakfast Program.

07/01/2001
Resource | Report to Congress Food Assistance: Performance Measures for Assessing Three WIC Services

GAO Report to Congressional Committees on Food Assistance: Performance Measures for Assessing Three WIC Services

02/01/2001
Resource | Research and Data | Food/Nutrient Analysis Changes in Children's Diets: 1989-1991 To 1994-1996

This report is the second of two reports on the nutrition of children using findings from the analysis of the 1989-1991 and 1994-1996 panels of the Continuing Survey of Food Intakes by Individuals. The key objectives of the overall study are to describe the diets of school-aged children in the United States as of the mid-1990s, examine relationships between children's participation in the school meal programs and their dietary intake, and examine changes in intake between the periods 1989-1991 and 1994-1996. 

01/01/2001
Page updated: July 21, 2026