Introduction to Evidence-Based Medicine

William J. Powers, M.D.-- Departments of Neurology, Neurosurgery and Radiology
Washington University School of Medicine -- Presented July 11, 2006

The randomized, masked, 
parallel group clinical trial
 

  • Eligibility criteria are pre-defined

  • Enrolled participants are randomly assigned to one treatment

  • Everyone is masked ("blinded") to the treatment

  • The criteria for declaring a benefit for one treatment are pre-defined

 
Back Next

 

 

 

Internet Stroke Center at Washington University:
Copyright © 1997 -2007 All rights reserved.