Judged: two independent readers; copy check clear.

reliability

reliability Reliability is the consistency of a test, classically understood as how strongly scores on two parallel versions of the same test agree.

Reliability is the consistency of a test, classically understood as how strongly scores on two parallel versions of the same test agree. In this view, it reflects the proportion of score variation due to true differences rather than measurement error.

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. “Reliability” (reliability.html).
public-domain-US · Definition uses new wording; original source retains its stated licence. · Source snapshot SHA-256: 253713cf36ce7f2ae0be930c916bd504fc869b7074ed45602fb9597bdcbacdf6

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.

Cite this entry

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

Version 1 · SHA-256: 3fecdc2ed23f86074de3cf790a409ea05c6b29d0a667288279d21698b14fe6af

Edit this entry on GitHub