February, 2003
© 2000, 2001  Scott S. Emerson, M.D., Ph.D.
Session 2: 146
Evaluation of Designs
Frequentist inference on the boundary at each analysis
Consider P values, confidence intervals when observation corresponds to decision boundary at each analysis
Ensure desirable precision for negative studies
·Confidence interval identifies hypotheses not rejected by analysis
·Have all scientifically meaningful hypotheses been rejected?