Literaturnachweis - Detailanzeige
| Autor/inn/en | van der Linden, Wim J.; Veldkamp, Bernard P. |
|---|---|
| Institution | Twente Univ., Enschede (Netherlands). Faculty of Educational Science and Technology. |
| Titel | Constraining Item Exposure in Computerized Adaptive Testing with Shadow Tests. Research Report. |
| Quelle | (2002), (34 Seiten)
PDF als Volltext kostenfreie Datei |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Monographie |
| Schlagwörter | Adaptive Testing; College Entrance Examinations; Computer Assisted Testing; Law Schools; Probability; Test Construction; Test Items; Law School Admission Test |
| Abstract | Item-exposure control in computerized adaptive testing is implemented by imposing item-ineligibility constraints on the assembly process of the shadow tests. The method resembles J. Sympson and R. Hetter's (1985) method of item-exposure control in that the decisions to impose the constraints are probabilistic. However, the method does not require time consuming simulation studies to set values for control parameters prior to the operational use of the test. Instead, the probabilities of item ineligibility can be set "on the fly" using an adaptive procedure based on the actual item-exposure rates. An empirical study using an item pool from the Law School Admission Test showed that application of the method yielded perfect control of the item exposure rates and had negligible impact on the bias and mean squared error functions of the ability estimates. (Contains 5 figures and 26 references.) (Author/SLD) |
| Anmerkungen | Faculty of Educational Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands. |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
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