Book excerpt: Study Guide to Substance Abuse Treatment is a question-and-answer companion that allows you to evaluate your mastery of the subject matter as you progress through The American Psychiatric Publishing Textbook of Substance Abuse Treatment, Fifth Edition. The Study Guide is made up of questions divided into individual quizzes of 10-20 questions each that correspond to the chapters in the Textbook. Questions are followed by an Answer Guide that references relevant text (including the page number) in the Textbook to allow quick access to needed information. Each answer is accompanied by a discussion that addresses the correct response and also (when appropriate) explains why other responses are not correct.