Skip to main content
Statistical Considerations for the USDA Food Insecurity Index
CARD Working Papers
  • Jean D. Opsomer, Iowa State University
  • Helen H. Jensen, Iowa State University
  • Sarah M. Nusser, Iowa State University
  • Dorin Drignei, Iowa State University
  • Yasuo Amemiya, Iowa State University
Publication Date
Series Number
02-WP 307
This paper reviews the statistical properties of the model used to obtain estimates of the prevalence and severity of poverty-linked food insecurity and hunger in the United States. The U.S. Department of Agriculture has annually sponsored data collection efforts to obtain information on food insecurity and hunger since 1995. The assessment of household food insecurity is based on a one-parameter logistic item response model, also referred to as a Rasch model, and applied to a series of 18 questions reported in the Current Population Survey Food Security Module. The paper was used as the basis for discussions concerning future directions of research on the food insecurity measure. This report was originally released in July 1999.
Citation Information
Jean D. Opsomer, Helen H. Jensen, Sarah M. Nusser, Dorin Drignei, et al.. "Statistical Considerations for the USDA Food Insecurity Index" (2002)
Available at: