How many patients will you need in each treatment group if you want to be able to detect a difference that is either better or worse than Medication X? 

HEDU 3720:  Introduction to Epidemiology                   Problem Set:  Randomized Trials  Point values are in parenthesis. Draw and label the design of a randomized trial (2). A double-blinded, placebo-controlled, randomized clinical trial is considered the gold standard for experimental research. Explain what each of the three italicized terms means (3). Define selection bias (1). What is meant […]