February, 2003
© 2000, 2001, 2003 Scott S. Emerson, M.D., Ph.D.
Session 1- Fixed Sample Design: 39
Statistical Hypotheses: Summary Measure
Summary measures comparing outcomes across treatment groups
In addition to choosing the measure which summarizes the distribution of outcomes within each treatment group, we also need to decide how to contrast the outcomes across groups
·Difference
-E.g., means, proportions
·Ratio
-E.g., odds, medians, hazards