Meeting an important need, this is the first book to present a comprehensive framework for integrating trauma-informed principles into evaluation practice. It provides concepts and strategies applicable to any evaluation approach, from the initial project framing through surveys, interviews, analysis, and final reporting. The authors explain the neuroscience of trauma and show how using Trauma-Informed Evaluation and Research (TIER) practices can improve the quality of research while supporting healing, resilience, and posttraumatic growth in both participants and researchers. Grounded in SAMHSA’s Six Principles of Trauma-Informed Care, the book features compelling case studies from diverse practitioners; reflection questions; and practical tools, checklists, and templates for immediate implementation. Cultural responsiveness, equity, and restorative justice principles are woven throughout.