Abstract
| Original language | English |
|---|---|
| Place of Publication | Enschede |
| Publisher | Onderwijskundige Meetmethoden en Data-analyse |
| Number of pages | 29 |
| Publication status | Published - 2002 |
Publication series
| Name | OMD Research Report |
|---|---|
| Publisher | University of Twente, Faculty of Educational Science and Technology |
| No. | 02-06 |
Fingerprint
Keywords
- METIS-209504
- item exposure control
- IR-103564
- Computerized Adaptive Testing
- item-selection constraints
- shadow test approach
- randomized control
Cite this
}
Constraining item exposure in computerized adaptive testing with shadow tests. / van der Linden, Willem J.; Veldkamp, Bernard P.
Enschede : Onderwijskundige Meetmethoden en Data-analyse, 2002. 29 p. (OMD Research Report; No. 02-06).Research output: Book/Report › Report › Professional
TY - BOOK
T1 - Constraining item exposure in computerized adaptive testing with shadow tests
AU - van der Linden, Willem J.
AU - Veldkamp, Bernard P.
PY - 2002
Y1 - 2002
N2 - 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 Sympson and 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 (LSAT) showed that application of the method yielded perfect control of the item exposure rates and had negligible impact on the bias and MSE functions of the ability estimator.
AB - 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 Sympson and 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 (LSAT) showed that application of the method yielded perfect control of the item exposure rates and had negligible impact on the bias and MSE functions of the ability estimator.
KW - METIS-209504
KW - item exposure control
KW - IR-103564
KW - Computerized Adaptive Testing
KW - item-selection constraints
KW - shadow test approach
KW - randomized control
M3 - Report
T3 - OMD Research Report
BT - Constraining item exposure in computerized adaptive testing with shadow tests
PB - Onderwijskundige Meetmethoden en Data-analyse
CY - Enschede
ER -