A better stopping rule for conventional statistical tests

@article{Frick1998ABS,
  title={A better stopping rule for conventional statistical tests},
  author={Robert W. Frick},
  journal={Behavior Research Methods, Instruments, & Computers},
  year={1998},
  volume={30},
  pages={690-697}
}
The goal of some research studies is to demonstrate the existence of an effect. Statistical testing, withp less than .05, is one criterion for establishing the existence of this effect. In this situation, the fixedsample stopping rule, in which the number of subjects is determined in advance, is impractical and inefficient. This article presents a sequential stopping rule that is practical and about 30% more efficient: Once a minimum number of subjects is tested, stop withp less than .01 or… CONTINUE READING

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