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  1. Richard E. Lucas

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Description: Many philosophers of science and methodologists have argued that the ability to repeat studies and obtain similar results is an essential component of science. A finding is elevated from single observation to scientific evidence when the procedures that were used to obtain it can be reproduced and the finding itself can be replicated. Recent replication attempts show that some high profile results--most notably in psychology, but in many other disciplines as well---cannot be replicated consistently. These replication attempts have generated a considerable amount of controversy and the issue of whether direct replications have value has, in particular, proven to be contentious. However, much of this discussion has occurred in published commentaries and social media outlets, resulting in a fragmented discourse. To address the need for an integrative summary, we review various types of replication studies and then discuss the most commonly voiced concerns about direct replication. We provide detailed responses to these concerns and consider different statistical ways to evaluate replications. We conclude there are no theoretical or statistical obstacles to making direct replication a routine aspect of psychological science.

License: CC-By Attribution 4.0 International

Has supplemental materials for Making Replication Mainstream on PsyArXiv


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The Costs and Benefits of Replication Studies

In a summary of recent discussions about the role of direct replications in psychological science, Zwaan, Etz, Lucas, and Donnellan (2017; henceforth ...

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Improving Social and Behavioral Science By Making Replication Mainstream: A Response to Commentaries

The commentaries on our target article are insightful and constructive. There were some critical notes, but many commentaries agreed with, or even amp...

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