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Making replication mainstream

Published online by Cambridge University Press:  25 October 2017

Rolf A. Zwaan ,
Alexander Etz ,
Richard E. Lucas  and
M. Brent Donnellan
Rolf A. Zwaan
Affiliation:
Department of Psychology, Education, and Child Sciences, Erasmus University Rotterdam, 3000 DR Rotterdam, The Netherlands. [email protected]://www.eur.nl/essb/people/rolf-zwaan
Alexander Etz
Affiliation:
Department of Cognitive Sciences, University of California, Irvine, CA 92697-5100. [email protected]://alexanderetz.com/
Richard E. Lucas
Affiliation:
Department of Psychology, Michigan State University, East Lansing, MI 48824. [email protected]://www.msu.edu/user/lucasri/
M. Brent Donnellan
Affiliation:
Department of Psychology, Texas A&M University, College Station, TX 77843. [email protected]://psychology.msu.edu/people/faculty/donnel59
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Abstract

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.

Keywords

psychological researchreplicationreproducibilityresearch programs
Type
Target Article
Information
Behavioral and Brain Sciences , Volume 41 , 2018 , e120
Copyright
Copyright © Cambridge University Press 2018 

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Footnotes

1.

Current address: Department of Psychology, Psychology Building, 316 Physics Road, Room 249A, Michigan State University, East Lansing, MI 48824.

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