In today's rapidly changing world of clinical practice, old assumptions quickly fall under the weight of new evidence. But to make effective clinical decisions, you must face a deluge of data published in the health research literature. With this best-selling text as your guide, you'll discover a concise, stepwise program that will help you evaluate clinical studies, identify flaws in study design, interpret statistics, and apply evidence from clinical research to your practice. Sharpen your analytical skills with these insightful features... NEW to the Fifth Edition... Clear the path to a new understanding of evidence-based medicine...and integrate today's best evidence into tomorrow's practice. Order your copy of Studying a Study and Testing a Test, Fifth Edition today!