A Multiple Objective Test Assembly Approach for Exposure Control Problems in Computerized Adaptive Testing

Autor/inn/en	Veldkamp, Bernard P.; Verschoor, Angela J.; Eggen, Theo J. H. M.
Titel	A Multiple Objective Test Assembly Approach for Exposure Control Problems in Computerized Adaptive Testing
Quelle	In: Psicologica: International Journal of Methodology and Experimental Psychology, 31 (2010) 2, S.335-355 (21 Seiten) PDF als Volltext kostenfreie Datei Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0211-2159
Schlagwörter	Adaptive Testing; Item Analysis; Computer Assisted Testing; Test Items; Test Construction; Item Response Theory; Eligibility; Foreign Countries; Netherlands + Suchen Sie Ihr Suchwort? Itemanalyse; Test content; Testaufgabe; Testaufbau; Item-Response-Theorie; Eignung; Ausland; Niederlande
Abstract	Overexposure and underexposure of items in the bank are serious problems in operational computerized adaptive testing (CAT) systems. These exposure problems might result in item compromise, or point at a waste of investments. The exposure control problem can be viewed as a test assembly problem with multiple objectives. Information in the test has to be maximized, item compromise has to be minimized, and pool usage has to be optimized. In this paper, a multiple objectives method is developed to deal with both types of exposure problems. In this method, exposure control parameters based on observed exposure rates are implemented as weights for the information in the item selection procedure. The method does not need time consuming simulation studies, and it can be implemented conditional on ability level. The method is compared with Sympson Hetter method for exposure control, with the Progressive method and with alpha-stratified testing. The results show that the method is successful in dealing with both kinds of exposure problems. (Contains 3 figures and 3 tables.) (As Provided).
Anmerkungen	University of Valencia. Dept. Metodologia, Facultad de Psicologia, Avda. Blasco Ibanez 21, 46010 Valencia, Spain. Tel: +34-96-386-4100; Web site: http://www.uv.es/revispsi/
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10