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power

power In significance testing, power is the chance that a test will reject the null hypothesis when that null hypothesis is actually false.

In significance testing, power is the chance that a test will reject the null hypothesis when that null hypothesis is actually false.

Also see

Sources

Drafting source: Online Statistics Education, version 2 (David M. Lane, project leader). Version 2; publisher statement snapshot 2026-10-18; SHA-256 0dcad9ee85f61f9e2bb24d26279de155ac749164ea4da2a3bffeabcf9ea471a6. “Power” (power.html).
public-domain-US · Source snapshot SHA-256: 62618a123974fa2823618b917619bfe3217d2210efa73209a2367aa3efc2a333

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PsychTerms (psychterms.org), CC BY 4.0, version 1. “power.” Development preview.

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