The second edition of the Impact Evaluation in Practice handbook is a comprehensive and accessible introduction to impact evaluation for policy makers and development practitioners. First published in 2011, it has been used widely across the development and academic communities. The book incorporates real-world examples to present practical guidelines for designing and implementing impact evaluations. Readers will gain an understanding of impact evaluations and the best ways to use them to design evidence-based policies and programs. The updated version covers the newest techniques for evaluating programs and includes state-of-the-art implementation advice, as well as an expanded set of examples and case studies that draw on recent development challenges. It also includes new material on research ethics and partnerships to conduct impact evaluation. The handbook is divided into four sections: Part One discusses what to evaluate and why; Part Two presents the main impact evaluation methods; Part Three addresses how to manage impact evaluations; Part Four reviews impact evaluation sampling and data collection. Case studies illustrate different applications of impact evaluations. The book links to complementary instructional material available online, including an applied case as well as questions and answers. The updated second edition will be a valuable resource for the international development community, universities, and policy makers looking to build better evidence around what works in development.

This handbook provide a non-technical introduction to impact evaluations, including ?Why Evaluate? in Chapter 1, ?How to Evaluate? in Chapter 2 and ?How to Implement Impact Evaluations? in Chapter 3. These elements are the basic ?tools? needed in order to successfully carry out an impact evaluation.

Impact evaluations are studies that attempt to measure the causal impact of a project, program or policy on one or more outcomes of. This book provides a comprehensive exposition of how to conduct impact evaluations. Part I provides an overview of impact evaluations and comprises five chapters which are accessible to readers who have few or none of the technical (statistical and econometric) skills that are needed to conduct impact evaluations. Parts II and III make use of statistical and econometric methods and are at a level similar to a graduate-student course but written to make them accessible to the ambitious reader whose skills are not at that level. Part II presents, in Chapters 6-10, a comprehensive discussion of the use of randomized controlled trials (RCTs) to conduct impact evaluations, including a general discussion of the ethical issues involved in conducting impact evaluations. Part III presents the main non-experimental methods that are used to implement impact evaluations when RCTs are not feasible or not recommended for other reasons. Chapters 11 and 12 present regression methods, including difference-in-differences estimation. Matching methods are described in Chapter 13, after which regression discontinuity methods are covered in Chapter 14. Instrumental variable methods, including the estimation of local average treatment effects (LATE), are discussed in detail in Chapter 15. Chapters 16 and 17 cover more advanced topics: quantile treatment effects and control function methods, respectively. Part IV then considers more practical issues when conducting impact evaluations, including designing questionnaires (Chapter 18), data collection methods and survey management (Chapters 19 and 20), and disseminating results to policymakers (Chapter 21). Finally, Part V addresses two topics in impact evaluation: qualitative methods for conducting impact evaluations (Chapter 22), and cost-benefit and cost-effectiveness analysis (Chapter 23).

Impact evaluation is an important tool in research and policy making, as policymakers and donor agencies are under increasing pressure to justify public spending on social and economic interventions. This book will guide the reader through both the basic and more advanced methods of impact evaluation, with a particular focus on impact evaluation within evidence-based policy making and in international development. It will address the design, commissioning, and management of impact evaluations, data management, statistical econometric analyses, and theory-based approaches to impact evaluation. It will also cover other components of evidence-based policy making such as systematic reviews, replication, and ethics in impact evaluation research and practice. The book is organized in four parts, each part divided into stand-alone chapters. The chapters provide a theoretical discussion of the various topics related to impact evaluation, complemented with exercises, case studies and worked examples drawn from the international development literature. Iconic impact evaluation studies will be used to exemplify the challenges of development impact evaluations. The authors have all successfully conducted impact evaluations in developing countries for many years, and the book builds on their experience in in teaching, research, and consulting on development issues. It will be of interest to students of development studies, development economics, political science, public health and other areas in the social sciences, as well as to development professionals and policymakers.

This book considers the process of impact assessment and shows how and why it needs to be integrated into all stages of development programmes. In-depth case studies are included and show a variety of approaches.

Impact evaluation aims to answer whether and to what extent a development intervention has delivered its intended effects, thus enabling evidence-based policy making. The desire for more hard evidence of the effectiveness of development interventions has fueled a growing interest in rigorous impact evaluation in the international development community. This report discusses the fundamental challenge of impact evaluation, which is to credibly attribute the impact, if any, to the intervention concerned. It then discusses the merits and limitations of various impact evaluation methods. It also presents a survey of recent applications of impact evaluation, focusing on the typical evaluation problems looked at, methods used, and key findings. The report includes six case studies and outlines practical steps in implementing an impact evaluation.