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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2510.11273 |
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| _version_ | 1866908806910312448 |
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| author | Djordjilović, Vera Sofer, Tamar Dreyfuss, Jonathan M. |
| author_facet | Djordjilović, Vera Sofer, Tamar Dreyfuss, Jonathan M. |
| contents | Directional replicability addresses the question of whether an effect studied across $n$ independent studies is present with the same direction in at least $r$ of them, for $r \geq 2$. When the expected direction of the effect is not specified in advance, the state of the art recommends assessing replicability separately by combining one-sided $p$-values for both directions (left and right), and then doubling the smaller of the two resulting combined $p$-values to account for multiple testing. In this work, we show that this multiplicative correction is not always necessary, and give conditions under which it can be safely omitted. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_11273 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Directional replicability: when can the factor of two be omitted Djordjilović, Vera Sofer, Tamar Dreyfuss, Jonathan M. Methodology Directional replicability addresses the question of whether an effect studied across $n$ independent studies is present with the same direction in at least $r$ of them, for $r \geq 2$. When the expected direction of the effect is not specified in advance, the state of the art recommends assessing replicability separately by combining one-sided $p$-values for both directions (left and right), and then doubling the smaller of the two resulting combined $p$-values to account for multiple testing. In this work, we show that this multiplicative correction is not always necessary, and give conditions under which it can be safely omitted. |
| title | Directional replicability: when can the factor of two be omitted |
| topic | Methodology |
| url | https://arxiv.org/abs/2510.11273 |