umu.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Linking With External Covariates: Examining Accuracy by Anchor Type, Test Length, Ability Difference, and Sample Size
Umeå universitet, Samhällsvetenskapliga fakulteten, Handelshögskolan vid Umeå universitet, Statistik.ORCID-id: 0000-0001-5549-8262
2019 (Engelska)Ingår i: Applied psychological measurement, ISSN 0146-6216, E-ISSN 1552-3497, Vol. 43, nr 8, s. 597-610Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Research has recently demonstrated the use of multiple anchor tests and external covariates to supplement or substitute for common anchor items when linking and equating with nonequivalent groups. This study examines the conditions under which external covariates improve linking and equating accuracy, with internal and external anchor tests of varying lengths and groups of differing abilities. Pseudo forms of a state science test were equated within a resampling study where sample size ranged from 1,000 to 10,000 examinees and anchor tests ranged in length from eight to 20 items, with reading and math scores included as covariates. Frequency estimation linking with an anchor test and external covariate was found to produce the most accurate results under the majority of conditions studied. Practical applications of linking with anchor tests and covariates are discussed.

Ort, förlag, år, upplaga, sidor
Sage Publications, 2019. Vol. 43, nr 8, s. 597-610
Nyckelord [en]
equating, linking, simulation
Nationell ämneskategori
Sannolikhetsteori och statistik
Identifikatorer
URN: urn:nbn:se:umu:diva-164377DOI: 10.1177/0146621618824855ISI: 000485908600002PubMedID: 31551638OAI: oai:DiVA.org:umu-164377DiVA, id: diva2:1369480
Tillgänglig från: 2019-11-12 Skapad: 2019-11-12 Senast uppdaterad: 2019-11-12Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextPubMed

Personposter BETA

Wiberg, Marie

Sök vidare i DiVA

Av författaren/redaktören
Wiberg, Marie
Av organisationen
Statistik
I samma tidskrift
Applied psychological measurement
Sannolikhetsteori och statistik

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetricpoäng

doi
pubmed
urn-nbn
Totalt: 131 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf