The authors provide an overview of the Cooperative Extension System and its program evaluation challenges. Part of the historic land-grant system, Extension exists in all states and territories of the United States and is funded through federal, state, and local (usually county) appropriations, as well as competitive grants and other sources.…

Extension and evaluation share some similar challenges, including working with diverse stakeholders, parallel processes for focusing priorities, meeting common standards of excellence, and adapting to globalization, new technologies, and changing times. Evaluations of extension programs have helped clarify how change occurs, especially the…