This handbook seeks to provide project managers and policy analysts with the tools needed for evaluating project impact. It is aimed at readers with a general knowledge of statistics. For some of the more in-depth statistical methods discussed, the reader is referred to the technical literature on the topic. Chapter 1 presents an overview of concepts and methods, Chapter 2 discusses key steps and related issues to consider in implementation, Chapter 3 illustrates various analytical techniques through a case study, and Chapter 4 includes a discussion of lessons learned from a rich set of