@booklet {1597,
	title = {A comparison of testlet-based test designs for computerized adaptive testing (LSAC Computerized Testing Report 97-01)},
	year = {1999},
	address = {Newtown, PA: LSAC.},
	author = {Schnipke, D. L. and Reese, L. M.}
}
@article {327,
	title = {Incorporating content constraints into a multi-stage adaptive testlet design.},
	number = {BBB16784},
	year = {1999},
	institution = {Law School Admission Council},
	address = {Princeton, NJ. USA},
	abstract = {Most large-scale testing programs facing computerized adaptive testing (CAT) must face the challenge of maintaining extensive content requirements, but content constraints in computerized adaptive testing (CAT) can compromise the precision and efficiency that could be achieved by a pure maximum information adaptive testing algorithm. This simulation study first evaluated whether realistic content constraints could be met by carefully assembling testlets and appropriately selecting testlets for each test taker that, when combined, would meet the content requirements of the test and would be adapted to the test takers ability level. The second focus of the study was to compare the precision of the content-balanced testlet design with that achieved by the current paper-and-pencil version of the test through data simulation. The results reveal that constraints to control for item exposure, testlet overlap, and efficient pool utilization need to be incorporated into the testlet assembly algorithm. More refinement of the statistical constraints for testlet assembly is also necessary. However, even for this preliminary attempt at assembling content-balanced testlets, the two-stage computerized test simulated with these testlets performed quite well. (Contains 5 figures, 5 tables, and 12 references.) (Author/SLD)},
	isbn = {Series},
	author = {Reese, L. M. and Schnipke, D. L. and Luebke, S. W.}
}
@conference {1144,
	title = {Response time feedback on computer-administered tests},
	booktitle = {Paper presented at the annual meeting of the National Council on Measurement in Education},
	year = {1999},
	address = {Montreal, Canada},
	author = {Scrams, D. J. and Schnipke, D. L.}
}
@article {406,
	title = {Using response-time constraints to control for differential speededness in computerized adaptive testing},
	journal = {Applied Psychological Measurement},
	volume = {23},
	number = {3},
	year = {1999},
	note = {Sage Publications, US},
	pages = {195-210},
	abstract = {An item-selection algorithm is proposed for neutralizing the differential effects of time limits on computerized adaptive test scores. The method is based on a statistical model for distributions of examinees{\textquoteright} response times on items in a bank that is updated each time an item is administered. Predictions from the model are used as constraints in a 0-1 linear programming model for constrained adaptive testing that maximizes the accuracy of the trait estimator. The method is demonstrated empirically using an item bank from the Armed Services Vocational Aptitude Battery. },
	keywords = {computerized adaptive testing},
	author = {van der Linden, W. J. and Scrams, D. J. and Schnipke, D. L.}
}
@booklet {1537,
	title = {Using response-time constraints to control for differential speededness in adaptive testing (Research Report 98-06)},
	year = {1998},
	address = {Enschede, The Netherlands: University of Twente, Faculty of Educational Science and Technology, Department of Measurement and Data Analysis},
	author = {van der Linden, W. J. and Scrams, D. J. and Schnipke, D. L.}
}
@conference {1143,
	title = {A comparison of testlet-based test designs for computerized adaptive testing},
	booktitle = {Paper presented at the meeting of American Educational Research Association},
	year = {1997},
	address = {Chicago, IL},
	author = {Schnipke, D. L. and Reese, L. M.}
}
@booklet {1504,
	title = {Incorporating content constraints into a multi-stage adaptive testlet design: LSAC report},
	year = {1997},
	address = {Newtown, PA: Law School Admission Council},
	author = {Reese, L. M. and Schnipke, D. L. and Luebke, S. W.}
}
@conference {1116,
	title = {An evaluation of a two-stage testlet design for computerized adaptive testing},
	booktitle = {Paper presented at the annual meeting of the Psychometric Society},
	year = {1996},
	address = {Banff, Alberta, Canada},
	author = {Reese, L. M. and Schnipke, D. L.}
}
