A leading introductory text, this authoritative volume comprehensively describes the school psychologist's role in promoting positive academic, behavioral, and emotional outcomes for all students. The book emphasizes a problem-solving-based, data-driven approach to practice in today's diverse schools. It grounds the reader in the concepts and tools needed to become a competent, ethical practitioner; implement and evaluate multi-tiered interventions; and facilitate systems-level change. Useful pedagogical features include illustrative vignettes and end-of-chapter discussion questions and activities. New to this edition: incorporates up-to-date research findings and professional standards expanded coverage of Response-to-Intervention, cultural and linguistic diversity issues, and evidence-based practice in mental health chapter on legal issues includes expanded coverage of IDEIA and other recent federal mandates.