|
Dissertation
Proposal Optimal
Adaptive Designs for Binary Response Trials
with K
Treatments
Youngsook Jeon Advisor: Feifang Hu Department of Statistics, UVA One
fundamental question in
response adaptive randomization is what allocation proportion we should
target
to achieve requisite power while resulting in fewer treatment failures.
For
comparing two treatments, such optimal allocations are well studied in
literature. Generalization to K (>2) treatments is necessary in
practice. We
are interested in finding the optimal allocation proportion, which
achieves a
requisite power of a multivariate test of homogeneity in binary
response
experiment while minimizing expected treatment failures at the same
time. We
propose new optimal allocation without completing the proof. We also
present
simulation studies which shows response adaptive randomization
procedure that
targets this new optimal allocation performs better over complete
randomization. Future research topics also discussed. |