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arXiv · 1810.02669

Reply to Chen et al.: Parametric methods for cluster inference perform worse for two-sided t-tests

Anders Eklund·Hans Knutsson·Thomas E. Nichols
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Abstract

One-sided t-tests are commonly used in the neuroimaging field, but two-sided tests should be the default unless a researcher has a strong reason for using a one-sided test. Here we extend our previous work on cluster false positive rates, which used one-sided tests, to two-sided tests. Briefly, we found that parametric methods perform worse for two-sided t-tests, and that non-parametric methods perform equally well for one-sided and two-sided tests.

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Anders Eklund, Hans Knutsson, Thomas E. Nichols. 2018-10-05. Reply to Chen et al.: Parametric methods for cluster inference perform worse for two-sided t-tests. https://doi.org/10.1002/hbm.24465

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