The Fifth Edition of Evaluating Research in Communicative Disorders explains and discusses how to read, understand, and evaluate research published in communicative sciences and disorders journals. Organized into three parts, the careful organization of material aids understanding. Part I introduces the basic principles for evaluating research, Part II contains excerpts from journal articles, and Part III presents two complete articles and an evaluation checklist to guide the student in the evaluation process. The text incorporates numerous examples from current research to illustrate and clarify points made throughout. The book is richly illustrated with tables and figures and includes many study questions to lead students through primary sources in the research literature. New material can be found throughout this edition, particularly in the areas of research basis for evidence-based practice, effect size, levels of evidence, phases of clinical trials, and research integrity. Part II contains numerous updated research examples, keeping the text current & competitive.