Impact Evaluation of Development Interventions: A Practical Guide | Asian Development Bank

Impact Evaluation of Development Interventions: A Practical Guide

Institutional Document | December 2017

This practical guide focuses on lessons from experience and key tips which will be of use to those considering and planning impact evaluation studies.

Impact evaluation is an empirical approach to estimating the causal effects of interventions, in terms of both magnitude and statistical significance. Expanded use of impact evaluation techniques is critical to rigorously derive knowledge from development operations and for development investments and policies to become more evidence-based and effective. To help backstop more use of impact evaluation approaches, this book introduces core concepts, methods, and considerations for planning, designing, managing, and implementing impact evaluation, supplemented by examples. The topics covered range from impact evaluation purposes to basic principles, specific methodologies, and guidance on field implementation. It has materials for a range of audiences, from those who are interested in understanding evidence on “what works” in development, to those who will contribute to expanding the evidence base as applied researchers.

Contents 

  • Introduction: Impact Evaluation for Evidence-Based Development
  • Using Theories of Change to Identify Impact Evaluation Questions
  • The Core Concepts of Impact Evaluation
  • The Core Concepts of Impact Evaluation
  • Nonexperimental Designs
  • What and How to Measure: Data Collection for Impact Evaluation
  • Sample Size Determination for Data Collection
  • Managing the Impact Evaluation Process
  • Appendixes