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Ensuring test quality over time by monitoring the equating transformations
Umeå University, Faculty of Social Sciences, Umeå School of Business and Economics (USBE), Statistics.ORCID iD: 0000-0001-5549-8262
2017 (English)In: Quantitative Psychology. The 81st annual meeting pf the psychometric society, Asheville, North Carolina / [ed] L. Andries van der Ark, Marie Wiberg, Steven A. Culpepper, Jeffrey A. Douglas, Wen-Chung Wang, Springer, 2017, 239-252 p.Conference paper, Published paper (Refereed)
Abstract [en]

One important part of ensuring test quality over consecutive test administrations is to make sure that the equating procedure works as intended, especially when the composition of the test taker groups might change over the administrations. The aim of this study was to examine the equating transformations obtained using one or two previous administrations of a college admissions test that is given twice a year. The test has an external anchor, and thus a nonequivalent group with anchor test design is typically used to equate the test, although other data collection designs are possible. This study examined the use of different equating methods with different data collection designs and different braiding plans. The methods included traditional equating methods and (item response theory) Kernel equating methods. We found that different equating methods and different braiding strategies gave somewhat different results, and some reflections on how to proceed in the future are given.

Place, publisher, year, edition, pages
Springer, 2017. 239-252 p.
Series
Springer Proceedings in Mathematics and Statistics, ISSN 2194-1009, E-ISSN 2194-1009
Keyword [en]
kernel equating, IRT kernel equating, NEAT design, NEC design, braiding plan
National Category
Probability Theory and Statistics
Research subject
Statistics
Identifiers
URN: urn:nbn:se:umu:diva-138064DOI: 10.1007/978-3-319-56294-0_22ISBN: 978-3-319-56293-3 (print)ISBN: 978-3-319-56294-0 (print)OAI: oai:DiVA.org:umu-138064DiVA: diva2:1129662
Conference
International Meeting of the Psychometric Society
Funder
Swedish Research Council, 2014-578
Available from: 2017-08-05 Created: 2017-08-05 Last updated: 2017-08-05

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf