February, 2003
© 2000, 2001, 2003 Scott S. Emerson, M.D., Ph.D.
Session 1- Fixed Sample Design: 13
Scientific Hypotheses: Experimental Goal
Issues (cont.)
Scientific
·How to define scientific hypotheses when trying to establish
-efficacy by comparing a new treatment to no treatment
-efficacy by comparing a new treatment to an existing efficacious treatment
-superiority of one treatment over another
·How to choose the comparison group when trying to establish efficacy by comparing a new treatment to an existing efficacious treatment