When should we use one-tailed hypothesis testing?
When should we use one-tailed hypothesis testing?
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DOI：
10.1111/j.2041-210x.2010.00014.x
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发表时间：
2010-06-01
影响因子：
6.6
通讯作者：
Neuhaeuser, Markus
中科院分区：
文献类型：
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作者：
Ruxton, Graeme D.;Neuhaeuser, Markus
1.虽然单尾假设检验是常用的，但在已发表的论文中往往缺少使用这种方法的明确理由。在这里，我们提出了作者在决定是否采用单尾检验时应该问自己的明确问题。首先，我们建议作者只应该使用单尾检验，如果他们能解释为什么他们更感兴趣的是一个方向的效果，而不是其他。我们建议进一步的要求，即采用单尾检验需要解释为什么作者将在意外方向上观察到的大差异与在预期方向上的差异没有区别对待，而预期方向上的差异不足以证明拒绝零假设。这些理由应包括在使用单尾检验的已发表作品中，使编辑，审稿人和读者能够评估采用单尾检验的适当性。我们认为，坚持我们的建议将允许作者更适当地使用单尾检验，读者在使用单尾检验时形成自己的观点。
1. Although one-tailed hypothesis tests are commonly used, clear justification for why this approach is used is often missing from published papers.2. Here we suggest explicit questions authors should ask of themselves when deciding whether or not to adopt one-tailed tests.3. First, we suggest that authors should only use a one-tailed test if they can explain why they are more interested in an effect in one direction and not the other.4. We suggest a further requirement that adoption of one-tailed testing requires an explanation why the authors would treat a large observed difference in the unexpected direction no differently from a difference in the expected direction that was not strong enough to justify rejection of the null hypothesis.5. These justifications should be included in published works that use one-tailed tests, allowing editors, reviewers and readers the ability to evaluate the appropriateness of the adoption of one-tailed testing.6. We feel that adherence to our suggestions will allow authors to use one-tailed tests more appropriately, and readers to form their own opinion about such appropriateness when one-tailed tests are used.