One of the major challenges that therapists face is the increasing demand for accountability from third-party payers and consumers. This book is here to help, providing psychologists and related service providers with real-world methods to measure and prove therapeutic effectiveness. The author maintains that the same logic that drives the application of psychology can be integrated into the evaluation of onging treatment. This book provides readers with the empirical tools they need to evaluate outcomes effectively in their everyday practice with clients, whether those clients are individuals, families, groups or organizations. While reinforcing methodological concepts learned in graduate school, Cone provides practical advice and techniques that make sense in the real world. Tools for measurement, analysis and advanced evaluation are outlined, along with examples of their use and tips for telling others about your findings. This book should be useful for both experienced therapists and for students in research methodology, professional practice and outcomes assessment.