Why are replication rates so low?
为何研究复现率如此低？
Many explanations have been offered for why replication rates are low in the social sciences, including selective publication, p -hacking, and treatment effect heterogeneity. This article emphasizes that issues with the most commonly used approach for setting sample sizes in replication studies may also play an important role. Theoretically, I show in a simple model of the publication process that we should expect the replication rate to fall below its nominal target, even…