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http://ssrn.com/abstract=2259879
 
 

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Small Telescopes: Detectability and the Evaluation of Replication Results


Uri Simonsohn


University of Pennsylvania - The Wharton School

October 14, 2014


Abstract:     
This paper introduces a new approach for evaluating replication results. It combines effect-size estimation with hypothesis testing, assessing the extent to which the replication results are consistent with an effect size big enough to be detectable by the original study. The approach is demonstrated revisiting replications of three famous findings: the embodiment of morality, the endowment effect, and weather & happiness. Its benefits include: (i) distinguishing p>.05 replications that are simply too-noisy from those that actively indicate the effect is undetectably different from zero, (ii) “protecting” true findings from underpowered replications, and (iii) arriving at intuitively compelling inferences in general and for the revisited replications in particular.

Number of Pages in PDF File: 25

Keywords: Replications, power, p-values, effect size

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Date posted: May 3, 2013 ; Last revised: October 15, 2014

Suggested Citation

Simonsohn, Uri, Small Telescopes: Detectability and the Evaluation of Replication Results (October 14, 2014). Available at SSRN: http://ssrn.com/abstract=2259879 or http://dx.doi.org/10.2139/ssrn.2259879

Contact Information

Uri Simonsohn (Contact Author)
University of Pennsylvania - The Wharton School ( email )
3730 Walnut Street
JMHH 500
Philadelphia, PA 19104-6365
United States
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