Effects of Food Assistance and Nutrition Programs on Nutrition and Health: Volume 1, Research Design

William Hamilton andPeter H. Rossi

United States Department of Agriculture

关键词: USDA food assistance and nutrition programs;    nutrition and health outcomes;    research design;    Food Assistance and Nutrition Research Program;    FANRP;   

RP-ID  :  FANRR-19-1

学科分类：农业科学（综合）

美国|英语

来源: United States Department of Agriculture Publications

【 摘 要 】

This is the first of four reports in the "Nutrition and Health Outcome Study," which assesses the effects of USDA's food assistance and nutrition programs on nutrition and health outcomes. This report reviews the research designs available to evaluators for assessing the effect of USDA's food assistance and nutrition programs. The random assignment experiment is the "gold standard" design for such an evaluation. Where random assignment is impossible, quasi-experimental designs are used to infer what would have happened to program participants if the program had not existed. Eight types of quasi-experimental design are identified as having been used in evaluations of food assistance and nutrition programs, although none can guarantee unbiased estimates of program impacts.