p-value
p-value noun: in statistical significance testing, the probability of obtaining a test statistic at least as extreme as the one that was actually observed, assuming that the null hypothesis is true.
Noun
p-value (plural p-values)
- In statistical significance testing, the probability of obtaining a test statistic at least as extreme as the one that was actually observed, assuming that the null hypothesis is true.
- The larger the p-value the smaller the chance of a difference. A p-value of 1.00 means 0 % chance of a difference, while a p-value of 0.95 means a chance of difference close to 0. A p-value of > 0.95 literally means that we have > 95 per cent chance of finding a result less close to expectation...2008, Ton J. Cleophas, A.H. Zwinderman, Toine F. Cleophas, Eugene P. Cleophas, Statistics Applied to Clinical Trials, Springer Science & Business Media, →ISBN, page 145
- Synonyms:
- asymptotic significance, probability value
Synonyms of p-value
- asymptotic significance
- probability value
Forms of p-value
| plural | p-values |
|---|
Origin of p-value
Short for probability value.
Words formed from p-value
Questions about p-value
- What does p-value mean?
- P-value means in statistical significance testing, the probability of obtaining a test statistic at least as extreme as the one that was actually observed, assuming that the null hypothesis is true.
- What part of speech is p-value?
- P-value is a noun.
- What is the plural of p-value?
- The plural of p-value is p-values.
Words near p-value in the dictionary
Source and license
Adapted from Wiktionary: p-value (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Cite this entry: “p-value.” Word.ws, https://word.ws/p-value. Based on Wiktionary, CC BY-SA 4.0.