A comparative study of item exposure control methods in computerized adaptive testing

Shun Wen Chang, Timothy N. Ansley

研究成果: 雜誌貢獻期刊論文同行評審

15 引文 斯高帕斯(Scopus)

摘要

This study compared the properties of five methods of item exposure control within the purview of estimating examinees' abilities in a computerized adaptive testing (CAT) context. Each exposure control algorithm was incorporated into the item selection procedure and the adaptive testing progressed based on the CAT design established for this study. The merits and shortcomings of these strategies were considered under different item pool sizes and different desired maximum exposure rates and were evaluated in light of the observed maximum exposure rates, the test overlap rates, and the conditional standard errors of measurement. Each method had its advantages and disadvantages, but no one possessed all of the desired characteristics. There was a clear and logical trade-off between item exposure control and measurement precision. The Stocking and Lewis conditional multinomial procedure and, to a slightly lesser extent, the Davey and Parshall method seemed to be the most promising considering all of the factors that this study addressed.

原文英語
頁(從 - 到)71-103
頁數33
期刊Journal of Educational Measurement
40
發行號1
DOIs
出版狀態已發佈 - 2003 一月 1

ASJC Scopus subject areas

  • 教育
  • 發展與教育心理學
  • 應用心理學
  • 心理學(雜項)

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