This paper was presented at the AEA Conference in Anaheim, CA in November, 2011. Under a grant from the Wallace Foundation, the Donors Forum developed an initiative to overhaul the government contracting processes for human services in the State of Illinois and the City of Chicago. It is based on a framework of 15 principles in 6 areas and involves 40 practices. The focus of this paper is to describe the methodology used by two independent evaluators who collaborated to evaluate this effort. This methodology included administering a survey to key government respondents, using a modified Delphi method to obtain consensus and further explain survey results, site visits and interviews with key informants, document reviews, and a survey of stakeholders that included providers of human services, foundations and advocacy organizations. Our presentation will include discussion of the complexities and challenges encountered while conducting the evaluation, our collaborative approach, and highlight the applicability and generalizability of such a methodology for future evaluations of this nature. Authors are: Susan M. Wolfe and Kathryn Race#measuringadoption #IndependentConsulting #HumanServicesEvaluation #GovernmentEvaluation #2011Conference