On the sample size of curtailed tests
Bennett Eisenberg · Communication in Statistics- Theory and Methods · 1981
Formulas are given for the asymptotic distribution, mean, and variance of m-1Nm,where NNm is the random sample size of the curtailed version of a fixed-sample most powerful test based on sample size m. The adequacy of the formulas is numerically investigated in some important applications where exact formulas can also be derived