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The replicability revolution

  • Ulrich Schimmack (a1)


Psychology is in the middle of a replicability revolution. High-profile replication studies have produced a large number of replication failures. The main reason why replication studies in psychology often fail is that original studies were selected for significance. If all studies were reported, original studies would fail to produce significant results as often as replication studies. Replications would be less contentious if original results were not selected for significance.



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Crandall, C. S. & Sherman, J. W. (2016) On the scientific superiority of conceptual replications for scientific progress. Journal of Experimental Social Psychology 66:9399. Available at:
Open Science Collaboration (2015) Estimating the reproducibility of psychological science. Science 349(6251):aac4716. Available at:
Schimmack, U. (2012) The ironic effect of significant results on the credibility of multiple-study articles. Psychological Methods 17:551–56.
Schimmack, U. (2014) The test of insufficient variance (TIVA): A new tool for the detection of questionable research practices. Working paper. Available at:
Schimmack, U. (2017) ‘Before you know it’ by John A. Bargh: A quantitative book review. Available at:
Schimmack, U. & Brunner, J. (submittrd for publication) Z-Curve: A method for estimating replicability based on test statistics in original studies. Submitted for Publication.
Schimmack, U., Heene, M. & Kesavan, K. (2017) Reconstruction of a train wreck: How priming research went off the rails. Blog post. Available at:
Sterling, T. D. (1959) Publication decisions and their possible effects on inferences drawn from tests of significance—or vice versa. Journal of the American Statistical Association 54(285):3034. Available at:


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