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Case Study:
Stochastic Curtailment
Stochastic Curtailment
We are sometimes asked about stochastic curtailment
•Boundaries
can be expressed on conditional power and predictive power
scales
–Conditional
power:
•Probability of later reversing the potential decision at interim
analysis by conditioning on interim results and presumed treatment
effect
–Predictive
power:
•Like conditional power, but use a Bayesian prior for the presumed
treatment effect