David R. Hakes (University of Northern Iowa) has prepared a study guide that will enhance your success. Each chapter of the study guide includes learning objectives, a description of the chapter's context and purpose, a chapter review, key terms and definitions, advanced critical thinking questions, and helpful hints for understanding difficult concepts. You can develop your understanding of the material by doing the practice problems and answering the short-answer questions, then assess your mastery of the key concepts with the self-test, which includes true/false and multiple-choice questions. Visit www.ichapters.com for more information on the Study Guide.