of disciplines and viewpoints. The steering committee also agreed on the following cross-cutting themes for the topics:

1. Does the way food security is measured, the unit (household versus child hunger), and the severity/threshold matter for understanding of the topic?

2. Is existing evidence sufficient to make causal claims or merely associational?

3. Are there important data gaps? What types of additional data would be most beneficial: longitudinal, experimental, demonstrations, administrative, linked administrative-survey data, qualitative?

4. How might the USDA prioritize research efforts? What are the critical questions in each topic area, and what kind of research could begin to answer them?

5. How can research questions be action oriented, i.e., to link research with potential programmatic or policy solutions?

The four topic areas and the cross-cutting themes were intended to cover the questions of interest in the statement of task.

The Workshop on Research Gaps—Causes and Consequences of Child Food Insecurity and Hunger took place at the main building of the National Academy of Sciences in Washington, DC, April 8–9, 2013. There were eight main sessions and a final wrap-up by the chair of the steering committee. (The workshop agenda can be found in Appendix A, and a list of workshop registrants can be found in Appendix B.) Chapter 2 provides a brief introduction to the food security measure that has been used in the United States since 2001. The description is based largely on comments by a number of presenters and is provided as background, because speakers referred to the concept and the measurement of food insecurity throughout the workshop. Each of the following eight chapters (3 through 7 and 9) is dedicated to one of the workshop sessions, with Chapter 8 covering two sessions and Chapter 10 providing a wrap-up by the chair of the steering committee.

This report was prepared by a team of rapporteurs as a factual summary of what occurred at the workshop. The steering committee’s role was limited to planning and convening the workshop. The views contained in the report are those of individual workshop participants and do not necessarily represent the views of nonparticipants, other workshop participants, the steering committee, the NRC, or the IOM.

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