Andima et al. present a case study that documents the development of a ‰ÛÏgender sensitive tool for impact evaluation‰Û for agricultural technology that will be used in Kenya. The tool is a modified Gender Analysis Matrix (GAM) used by KARI researchers in Migori district. In this case study, researchers test the GAM in relation to the introduction of pest-resistant cassava varieties in Migori. The matrix examines labor, time, tools, land, cash, funds, food, and social standing in cassava production.