Intended for school psychologists, the handbook stresses that attention deficit disorder (ADD) is primarily a school problem and proposes that the school psychologist is the best professional to accurately diagnose and treat this disorder. The book reviews current research related to school psychology, describes assessment tools, and explains a variety of treatments. The first chapter looks at the role of the school psychologist in the diagnosis and treatment of ADD covering such areas as definition, developmental course of ADD, etiology, diagnosis, treatment, medication, and epidemiology. The second chapter considers the role of the school psychologist in diagnosis noting the use of the following diagnostic tools: health and developmental history; school records; classroom observations; observations in testing; psychometric data; behavior rating scales; and behavioral intervention effects. The psychoeducational report is discussed in the third chapter which identifies the diagnostic questions of ADD that need to be answered and documented and describes the Monterey Model of Assessment. The fourth chapter explains seven types of treatment: generic classroom strategies; diet management; parent training; behavior management; counseling; medication; and special education. The last chapter identifies maxims and beliefs for the school psychologist regarding ADD. The appendix presents 27 various forms, questionnaires, and summary sheets. A bibliography of 113 items is included. (DB)