The purpose of this class is to provide a scientific basis to quality measurement and evaluation. Topics include conceptual frameworks of quality measurement, reliability and validity of measures, data sources, rating scales, measuring different domains of quality, development of performance and composite measures, provider profiling and ranking, risk-adjustment, and quality measurement in an era of health reform. Topics are explored through readings and journal clubs, lectures, practical data exercises, and case studies. Readings are primarily drawn from the health services research literature.