Both practical and theoretical in approach, this book is the perfect companion for student researchers and policy makers alike. It provides actionable advice for planning and implementing evaluations, while also instilling an ability to assess the evaluations of others and consider the ways in which evaluation evidence could influence policy and practice. Drawing upon a wide range of examples from policy areas like education, criminal justice, and health and social care, this book showcases how evaluation is an interdisciplinary research practice with a spectrum of applications. Each chapter contains philosophical underpinnings and applied knowledge as well as examples from published evaluations. Specific topics include how to: * Choose an approach to evaluation * Plan, design, and conduct evaluations * Approach evaluations using theories of change * Differentiate between process, impact, and economic evaluations * Understand the role of quantitative and qualitative methods in data