Effect sizes and p values: What should be reported and what should be replicated?

Psychophysiology - Tập 33 Số 2 - Trang 175-183 - 1996
Anthony G. Greenwald1, Richard Gonzalez2, Richard Harris3, Donald Guthrie4
1Department of Psychology, University of Washington, Seattle, 98195-1525, USA.
2Department of Psychology, University of Washington, Seattle, USA
3Department of Psychology, University of New Mexico, Albuquerque, USA
4Department of Psychiatry. University of California, I os Angeles, USA

Tóm tắt

AbstractDespite publication of many well‐argued critiques of null hypothesis testing (NHT). behavioral science researchers continue to rely heavily on this set of practices. Although we agree with most critics' catalogs of NHT's flaws, this article also takes the unusual stance of identifying virtues that may explain why NHT continues to he so extensively used. These virtues include providing results in the form of a dichotomous (yes/no) hypothesis evaluation and providing an index (p value) Mini has a justifiable mapping onto confidence in repeatability of a null hypothesis rejection. The most‐criticized flaws of NHT can be avoided when the importance of a hypothesis, rather than the p value of its test, is used to determine that a finding is worthy of report, and when p=.05 is treated as insufficient basis for confidence in the replicability of an isolated non‐null finding. Together with many recent critics of NHT, we also urge reporting of important hypothesis tests in enough descriptive detail to permit secondary uses such as meta‐analysis.

Từ khóa


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Psychophysiology

Tập 33 Số 2

175-183

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