The purpose of the study was to learn the extent to which retail grocers, defined as "vendors" in the WIC Program, authorized to provide food to WIC participants, were violating program rules and procedures, and to determine which programmatic and/or demographic variables could be associated with vendor violations.

Prior to 1982, school districts were not required to verify the income or household size declared by households that applied for meal benefits. It was assumed that households were correctly reporting their income, and children from households that applied and declared a sufficiently Low income were given free or reduced-price meals. From 1982 to the present, the verification of household income for at least some of the approved application s for meal benefits has been part of each school district's responsibilities.