Quantitative Concept
statistical significance
sta·tis·ti·cal sig·nif·i·cance
Definitions related to statistical significance:
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(significant) Describes a mathematical measure of difference between groups. The difference is said to be statistically significant if it is greater than what might be expected to happen by chance alone.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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In statistics, a number that expresses the probability that the result of a given experiment or study could have occurred purely by chance. This number can be a margin of error or it can indicate a confidence level.NCI ThesaurusU.S. National Cancer Institute, 2021
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State that applies when a hypothesis is rejected. Whether or not a given result is significant depends on the significance level adopted. For example, one may say "significant at the 5% level." This implies that when the null hypothesis is true there is only a 1 in 20 chance of rejecting it.CDISC TerminologyClinical Data Interchange Standards Consortium (CDISC), 2021
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