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Are adaptive allocation designs beneficial for improving power in binary response trials?
Neyman allocation adaptive design asymptotic power Normal approximation Pitman effi ciency Bahadur effi ciency large deviations
2011/3/24
We consider the classical problem of selecting the best of two treatments in clinical trials with binary response. The target is to find the design that maximizes the power of the relevant test. Many ...
The beta-Bernoulli process provides a Bayesian nonparametric prior for models involving collections of binary-valued features.
Local power of the LR, Wald, score and gradient tests in dispersion models
Asymptotic expansions Chi-square distribution Dispersion models Gradient test Likelihood ratio test Local power Score test Wald test
2011/3/24
We derive asymptotic expansions up to order $n^{-1/2}$ for the nonnull distribution functions of the likelihood ratio, Wald, score and gradient test statistics in the class of dispersion models, under...
Black swans or dragon kings? A simple test for deviations from the power law
Black swans or dragon kings the power law A simple test for deviations
2011/3/25
We develop a simple test for deviations from power law tails, which is based on the asymptotic properties of the empirical distribution function. We use this test to answer the question whether great ...