Darcey Johnson is a Consultant for the Data Production and Methods Unit of the Development Data Group and for the Poverty & Equity Group of the World Bank. Her research interests are in agriculture, population health, and nutrition, with a focus on metrics and design. She has experience in the implementation and analysis of household surveys and has supported survey operations in Malawi, Nigeria, Tanzania, Senegal, Sierra Leone and the Pacific Islands. She has an MPH in Design, Monitoring & Evaluation from the George Washington University in Washington, D.C.