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Type I error

Type I error A Type I error is a mistake in significance testing where a true null hypothesis is rejected.

A Type I error is a mistake in significance testing where a true null hypothesis is rejected.

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. “Type I Error” (type_I_error.html).
public-domain-US · Definition uses new wording; original source retains its stated licence. · Source snapshot SHA-256: ca16236684c37b517642950b20fae4edb45b695decb2820856f5074960e91b02

These citations identify the drafting sources. 2/2 independent reader passes against the pinned source packet. The drafter does not count as a reader. Source institutions do not endorse this dictionary.

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

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