Explaining the "whats," "whys," and "how-tos" of functional behavioral assessment, this practical and engaging book is packed with real-world tools and examples. Effective procedures are presented for evaluating challenging behavior in K-12 students, organizing assessment data, and using the results to craft individualized behavior support plans. The authors draw on extensive school-based experience to provide sample reports, decision trees, and reproducible checklists and forms-all in a large-size format with lay-flat binding to facilitate photocopying. Purchasers also get access to a Web page where they can download and print the reproducible materials. This book is in The Guilford Practical Intervention in the Schools Series. New to This Edition *Revised throughout to reflect significant advances in the field. *Provides an updated conceptual model for understanding behavior. *Three new chapters cover brief functional analysis, behavior-analytic problem solving, and direct behavioral consultation. *Fully updated coverage of legal issues under IDEIA. *Includes revised forms and sample reports.