The Fourth Edition of Evaluating Research in Communicative Disorders explains and discusses how to read, understand, and evaluate research published in communicative disorders and sciences journals. This text is broken down into three parts. Part I introduces the basic principles for evaluating research, Part II contains a excerpts from journal articles and Part III presents two complete articles for student evaluation accompanied by an evaluation checklist to guide the student in the evaluation process. Numerous examples from current research to illustrate and clarify points made in the text. The book is richly illustrated with tables and figures and includes many study questions to guide students through primary sources in the research literature.