Universities systematically use assessments to evaluate programs of teacher education. The Professional Development Schools Partnership was a well-established collaboration with more than 11 years of work with area schools. However, two questions became the center of a discussion for evaluating, monitoring, and identifying the accomplishments of the professional development school network: first, "Was there a measure of how far we had really come?"; second, "What exactly has our Professional Development Schools Partnership accomplished?" In an effort to answer these questions and learn about the growth of the organization, the board created a task force to develop assessment tools and put into place a systematic process for evaluation that would over time inform the partnership of growth, strengths, and areas of needed improvement. Two evaluative tools and scoring guides provided valuable insight toward how effectively the partnership had fully implemented standards for professional development schools. Data were collected and analyzed to provide a vehicle for decision making. (Contains 2 figures and 10 tables.)