We Don't Need Replication, but We Do Need More Data

Although the many valuable recommendations Asendorpf et al. are presented as a way of increasing and improving replication, this is not their main contribution. Replication is irrelevant to most empirical investigations in psychological science, because what is really needed is an accumulation of data to reduce uncertainty. Whatever criterion is used to define success or failure of a replication is either meaningless or encourages a form of bias that undermines the integrity of the accumulation process. Even though it is rarely practised, the fixation on replication actively hurts the field. Copyright (C) 2013 John Wiley & Sons, Ltd.