Amazon.com description: Product Description: This comprehensive, research-based book includes original chapters by top scholars in special education and psychology who provide students with both a conceptual framework for intervention and the basis for implementing a wide range of assessment and treatment procedures. Grounded in theory and research, yet full of case studies, short vignettes, and practical examples, this book considers severe behavior problems within the context of the individual and his or her environment. The focus is on providing services that make a difference to the individuals quality of life.