Constructing Rotating Item Pools for Constrained Adaptive Testing

Autor/inn/en	Ariel, Adelaide; Veldkamp, Bernard P.; van der Linden, Wim J.
Titel	Constructing Rotating Item Pools for Constrained Adaptive Testing
Quelle	In: Journal of Educational Measurement, 41 (2004) 4, S.345-359 (15 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0022-0655
DOI	10.1111/j.1745-3984.2004.tb01170.x
Schlagwörter	Computer Assisted Testing; Adaptive Testing; Item Banks; Test Construction; Methods Research; Problem Solving; Task Analysis; Item Analysis + Suchen Sie Ihr Suchwort? Testaufbau; Methodenforschung; Problemlösen; Aufgabenanalyse; Itemanalyse
Abstract	Preventing items in adaptive testing from being over- or underexposed is one of the main problems in computerized adaptive testing. Though the problem of overexposed items can be solved using a probabilistic item-exposure control method, such methods are unable to deal with the problem of underexposed items. Using a system of rotating item pools, on the other hand, is a method that potentially solves both problems. In this method, a master pool is divided into (possibly overlapping) smaller item pools, which are required to have similar distributions of content and statistical attributes. These pools are rotated among the testing sites to realize desirable exposure rates for the items. A test assembly model, motivated by Gulliksen's matched random subtests method, was explored to help solve the problem of dividing a master pool into a set of smaller pools. Different methods to solve the model are proposed. An item pool from the Law School Admission Test was used to evaluate the performances of computerized adaptive tests from systems of rotating item pools constructed using these methods. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10