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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...