Thoroughly updated and revised to emphasize the link between research and evidence-based practice, this Ninth Edition of a classic textbook presents state-of-the-art methods for conducting high-quality studies. The ancillary Resource Manual includes application exercises, models of comprehensive research critiques, a full NINR grant application, and a Toolkit on a CD-ROM, containing exemplary research tools such as consent forms, a demographic questionnaire, and statistical table templates—all in easily-adapted Word documents.