Quantitative Concept
p-value
p·val·ue [ pee val-yoo ]
Definitions related to p-value:
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A measure of the probability that a result happened by chance. The lower the p-value, the more likely it is that the result was caused by phenomenon of interest.NCI ThesaurusU.S. National Cancer Institute, 2021
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A term in statistics. It helps show whether a difference found between groups that are being compared is due to chance. A small p-value usually means that the difference between groups is not due to chance alone, but is due to some other factor, such as a treatment one of the groups received. A large p-value usually means that the difference between groups is probably due to chance alone.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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Study findings can also be assessed in terms of their statistical significance. The p-value represents the probability that the observed data (or a more extreme result) could have arisen by chance when the interventions did not differ.CDISC TerminologyClinical Data Interchange Standards Consortium (CDISC), 2021
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