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index of discrimination

index of discrimination In assessment, an index of discrimination is a psychometric measure of how well a test item separates people who know the content from those who do not.

In assessment, an index of discrimination is a psychometric measure of how well a test item separates people who know the content from those who do not. A low index means the item does not clearly distinguish between more knowledgeable and less knowledgeable test-takers.

Sources

Drafting source: Burrola-Mendez Yohali; Kirby R. Lee; Rushton Paula W.; Contepomi Silvana; Tawashy Amira E.; Kankipati Padmaja; Jiménez García Norma; Terhorst Lauren; Goldberg Mary; Pearlman Jon. Psychometric properties of the International Society of Wheelchair Professionals’ basic manual wheelchair-service-provision knowledge Test Version 1 and development of Version 2. 2023; DOI 10.1371/journal.pone.0281584; article XML SHA-256 47bdcdfd0a73b8207226391679cfd96ad59baefa5a133dfc4b52d1287d495b70. “Psychometric properties of the International Society of Wheelchair Professionals’ basic manual wheelchair-service-provision knowledge Test Version 1 and development of Version 2” (10.1371/journal.pone.0281584).
CC-BY-4.0 · Definition uses new wording; original source retains its stated licence. · Source snapshot SHA-256: 47bdcdfd0a73b8207226391679cfd96ad59baefa5a133dfc4b52d1287d495b70

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. “index of discrimination.” Development preview.

Version 1 · SHA-256: 112b7a90ab4aaddb7550880ba0020d77ca6364c69b713f1613bf1648633c7bac

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index of discrimination

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Sources

Cite this entry