Book excerpt: Government and nongovernmental human service organizations are under increasing pressure to demonstrate that their programs work. As stakeholders demand more accountability, human service organizations are increasingly utilizing performance accountability and performance measurement as a way of demonstrating the efficiency, quality, and effectiveness of their programs. Measuring the Performance of Human Service Programs, Second Edition examines the reasons why performance measurement has become the major method of performance accountability today. In this second edition of their classic work, Martin & Kettner explain in detail how to develop and utilize output, quality, and outcome performance measures in human service programs. Special attention is given to the four types of outcome performance measures: numeric counts, standardized measures, level of functioning (LOF) scales and client satisfaction.