Computerized adaptive testing with equated number-correct scoring

Research output: Contribution to journalArticleAcademic

9 Citations (Scopus)

Abstract

A constrained computerized adaptive testing (CAT) algorithm is presented that can be used to equate CAT number-correct (NC) scores to a reference test. As a result, the CAT NC scores also are equated across administrations. The constraints are derived from van der Linden & Luecht’s (1998) set of conditions on item response functions that guarantees identical observed NC score distributions on two test forms. An item bank from the Law School Admission Test was used to compare the results of the algorithm with those for equipercentile observed-score equating, as well as the prediction of NC scores on a reference test using its test response function. The effects of the constraints on the statistical properties of the estimator in CAT were examined.
Original languageUndefined
Pages (from-to)343-355
Number of pages12
JournalApplied psychological measurement
Volume25
Issue number4
DOIs
Publication statusPublished - 2001

Keywords

  • METIS-203770
  • IR-60186

Cite this

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abstract = "A constrained computerized adaptive testing (CAT) algorithm is presented that can be used to equate CAT number-correct (NC) scores to a reference test. As a result, the CAT NC scores also are equated across administrations. The constraints are derived from van der Linden & Luecht’s (1998) set of conditions on item response functions that guarantees identical observed NC score distributions on two test forms. An item bank from the Law School Admission Test was used to compare the results of the algorithm with those for equipercentile observed-score equating, as well as the prediction of NC scores on a reference test using its test response function. The effects of the constraints on the statistical properties of the estimator in CAT were examined.",
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journal = "Applied psychological measurement",
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Computerized adaptive testing with equated number-correct scoring. / van der Linden, Willem J.

In: Applied psychological measurement, Vol. 25, No. 4, 2001, p. 343-355.

Research output: Contribution to journalArticleAcademic

TY - JOUR

T1 - Computerized adaptive testing with equated number-correct scoring

AU - van der Linden, Willem J.

PY - 2001

Y1 - 2001

N2 - A constrained computerized adaptive testing (CAT) algorithm is presented that can be used to equate CAT number-correct (NC) scores to a reference test. As a result, the CAT NC scores also are equated across administrations. The constraints are derived from van der Linden & Luecht’s (1998) set of conditions on item response functions that guarantees identical observed NC score distributions on two test forms. An item bank from the Law School Admission Test was used to compare the results of the algorithm with those for equipercentile observed-score equating, as well as the prediction of NC scores on a reference test using its test response function. The effects of the constraints on the statistical properties of the estimator in CAT were examined.

AB - A constrained computerized adaptive testing (CAT) algorithm is presented that can be used to equate CAT number-correct (NC) scores to a reference test. As a result, the CAT NC scores also are equated across administrations. The constraints are derived from van der Linden & Luecht’s (1998) set of conditions on item response functions that guarantees identical observed NC score distributions on two test forms. An item bank from the Law School Admission Test was used to compare the results of the algorithm with those for equipercentile observed-score equating, as well as the prediction of NC scores on a reference test using its test response function. The effects of the constraints on the statistical properties of the estimator in CAT were examined.

KW - METIS-203770

KW - IR-60186

U2 - 10.1177/01466210122032208

DO - 10.1177/01466210122032208

M3 - Article

VL - 25

SP - 343

EP - 355

JO - Applied psychological measurement

JF - Applied psychological measurement

SN - 0146-6216

IS - 4

ER -