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That's not a two‐sided test! It's two one‐sided tests!

Rubin, Mark (2022) 'That's not a two‐sided test! It's two one‐sided tests!', Significance, 19 (2). pp. 50-53.


When reporting tests of significance, researchers might claim to have conducted a two-sided test when in fact they have conducted two one-sided tests. Mark Rubin explains the confusion and how to avoid it.

Item Type:Article
Full text:(AM) Accepted Manuscript
Available under License - Creative Commons Attribution Non-commercial No Derivatives 4.0.
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Publisher statement:Copyright © The Author. OPEN ACCESS: This material is published under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International licence (CC BY-NC-ND 4.0; This licence permits you to copy and redistribute this material in any medium or format for noncommerical purposes without remixing, transforming, or building on the material provided that proper attribution to the authors is given.
Date accepted:No date available
Date deposited:02 September 2022
Date of first online publication:29 March 2022
Date first made open access:02 September 2022

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