A model-averaging approach to replication: the case of p rep.

@article{Iverson2010AMA,
  title={A model-averaging approach to replication: the case of p rep.},
  author={Geoffrey J. Iverson and Eric-Jan Wagenmakers and Michael D. Lee},
  journal={Psychological methods},
  year={2010},
  volume={15 2},
  pages={172-81}
}
The purpose of the recently proposed prep statistic is to estimate the probability of concurrence, that is, the probability that a replicate experiment yields an effect of the same sign (Killeen, 2005a). The influential journal Psychological Science endorses prep and recommends its use over that of traditional methods. Here we show that prep overestimates the probability of concurrence. This is because prep was derived under the assumption that all effect sizes in the population are equally… CONTINUE READING

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