@article {499,
	title = {The relationship between item exposure and test overlap in computerized adaptive testing},
	journal = {Journal of Educational Measurement},
	volume = {40},
	year = {2003},
	pages = {129-145},
	author = {Chen, S. and Ankenmann, R. D. and Spray, J. A.}
}
@article {503,
	title = {The relationship between item exposure and test overlap in computerized adaptive testing},
	journal = {Journal of Educational Measurement},
	volume = {40},
	year = {2003},
	pages = {129-145},
	author = {Chen, S. and Ankenmann, R. D. and Spray, J. A.}
}
@article {68,
	title = {The relationship between item exposure and test overlap in computerized adaptive testing},
	journal = {Journal of Educational Measurement},
	volume = {40},
	number = {2},
	year = {2003},
	pages = {129-145},
	abstract = {The purpose of this article is to present an analytical derivation for the mathematical form of an average between-test overlap index as a function of the item exposure index, for fixed-length computerized adaptive tests (CATs). This algebraic relationship is used to investigate the simultaneous control of item exposure at both the item and test levels. The results indicate that, in fixed-length CATs, control of the average between-test overlap is achieved via the mean and variance of the item exposure rates of the items that constitute the CAT item pool. The mean of the item exposure rates is easily manipulated. Control over the variance of the item exposure rates can be achieved via the maximum item exposure rate (r-sub(max)). Therefore, item exposure control methods which implement a specification of r-sub(max) (e.g., J. B. Sympson and R. D. Hetter, 1985) provide the most direct control at both the item and test levels. (PsycINFO Database Record (c) 2005 APA )},
	keywords = {(Statistical), Adaptive Testing, Computer Assisted Testing, Human Computer, Interaction computerized adaptive testing, Item Analysis, Item Analysis (Test), Test Items},
	author = {Chen, S-Y. and Ankemann, R. D. and Spray, J. A.}
}
@booklet {1440,
	title = {Effects of item-selection criteria on classification testing with the sequential probability ratio test (Research Report 2000-8)},
	year = {2000},
	note = {$\#$LI00-8},
	address = {Iowa City, IA: American College Testing},
	author = {Lin, C.-J. and Spray, J. A.}
}
@article {205,
	title = {Estimating Item Parameters from Classical Indices for Item Pool Development with a Computerized Classification Test. },
	number = {Research Report 2000-4},
	year = {2000},
	institution = {ACT, Inc.},
	address = {Iowa City, Iowa},
	author = {Huang, C.-Y. and Kalohn, J.C. and Lin, C.-J. and Spray, J. A.}
}
@article {220,
	title = {The effect of model misspecification on classification decisions made using a computerized test},
	journal = {Journal of Educational Measurement},
	volume = {36},
	number = {1},
	year = {1999},
	note = {National Council on Measurement in Education, US},
	pages = {47-59},
	abstract = {Many computerized testing algorithms require the fitting of some item response theory (IRT) model to examinees{\textquoteright} responses to facilitate item selection, the determination of test stopping rules, and classification decisions. Some IRT models are thought to be particularly useful for small volume certification programs that wish to make the transition to computerized adaptive testing (CAT). The 1-parameter logistic model (1-PLM) is usually assumed to require a smaller sample size than the 3-parameter logistic model (3-PLM) for item parameter calibrations. This study examined the effects of model misspecification on the precision of the decisions made using the sequential probability ratio test. For this comparison, the 1-PLM was used to estimate item parameters, even though the items{\textquoteright} characteristics were represented by a 3-PLM. Results demonstrate that the 1-PLM produced considerably more decision errors under simulation conditions similar to a real testing environment, compared to the true model and to a fixed-form standard reference set of items. (PsycINFO Database Record (c) 2003 APA, all rights reserved).},
	keywords = {computerized adaptive testing},
	author = {Kalohn, J.C. and Spray, J. A.}
}
@booklet {1349,
	title = {Exploring the relationship between item exposure rate and test overlap rate in computerized adaptive testing (ACT Research Report series 99-5)},
	year = {1999},
	note = {(also National Council on Measurement in Education paper, 1999).},
	address = {Iowa City IA: ACT, Inc},
	author = {Chen, S-Y. and Ankenmann, R. D. and Spray, J. A.}
}
@booklet {1348,
	title = {Exploring the relationship between item exposure rate and test overlap rate in computerized adaptive testing},
	year = {1999},
	note = {(Also ACT Research Report 99-5). (Also presented at American Educational Research Association, 1999)},
	address = {Paper presented at the annual meeting of the National Council on Measurement in Education, Montreal, Canada},
	author = {Chen, S. and Ankenmann, R. D. and Spray, J. A.}
}
@conference {962,
	title = {Effect of item selection on item exposure rates within a computerized classification test},
	booktitle = {Paper presented at the annual meeting of the National Council on Measurement in Education},
	year = {1998},
	address = {San Diego CA},
	author = {Kalohn, J.C. and Spray, J. A.}
}
@conference {1175,
	title = {Calibration of CAT items administered online for classification: Assumption of local independence},
	booktitle = {Paper presented at the annual meeting of the Psychometric Society},
	year = {1997},
	address = {Gatlinburg TN},
	author = {Spray, J. A. and Parshall, C. G. and Huang, C.-H.}
}
@booklet {1606,
	title = {Unidimensional approximations for a computerized adaptive test when the item pool and latent space are multidimensional (Research Report 97-5)},
	year = {1997},
	address = {Iowa City IA: ACT Inc},
	author = {Spray, J. A. and Abdel-Fattah, A. A. and Huang, C.-Y. and Lau, CA}
}
@article {367,
	title = {Comparison of SPRT and sequential Bayes procedures for classifying examinees into two categories using a computerized test},
	journal = {Journal of Educational \& Behavioral Statistics},
	volume = {21},
	year = {1996},
	pages = {405-414},
	author = {Spray, J. A. and Reckase, M. D.}
}
@conference {826,
	title = {Effect of altering passing score in CAT when unidimensionality is violated},
	booktitle = {Paper presented at the annual meeting of the American Educational Research Association},
	year = {1996},
	month = {April},
	address = {New York NY},
	author = {Abdel-Fattah, A. A. and Lau, CA and Spray, J. A.}
}
@conference {991,
	title = {Using unidimensional IRT models for dichotomous classification via CAT with multidimensional data},
	booktitle = {Poster session presented at the annual meeting of the American Educational Research Association},
	year = {1996},
	address = {Boston MA},
	author = {Lau, CA and Abdel-Fattah, A. A. and Spray, J. A.}
}
@conference {1174,
	title = {The effect of model misspecification on classification decisions made using a computerized test: 3-PLM vs. 1PLM (and UIRT versus MIRT)},
	booktitle = {Paper presented at the Annual Meeting of the Psychometric Society},
	year = {1995},
	note = {$\#$SP95-01},
	address = {Minneapolis, MN},
	author = {Spray, J. A. and Kalohn, J.C. and Schulz, M. and Fleer, P. Jr.}
}
@conference {1178,
	title = {The selection of test items for decision making with a computer adaptive test},
	booktitle = {Paper presented at the national meeting of the National Council on Measurement in Education},
	year = {1994},
	note = {$\#$SP94-01},
	address = {New Orleans LA},
	author = {Spray, J. A. and Reckase, M. D.}
}
@conference {1113,
	title = {The selection of test items for decision making with a computer adaptive test},
	booktitle = {Paper presented at the annual meeting of the National Council on Measurement in Education},
	year = {1994},
	address = {New Orleans LA},
	author = {Reckase, M. D. and Spray, J. A.}
}
@conference {1177,
	title = {Comparison of SPRT and sequential Bayes procedures for classifying examinees into two categories using an adaptive test},
	booktitle = {Unpublished manuscript. (},
	year = {1993},
	author = {Spray, J. A. and Reckase, M. D.}
}
@booklet {1605,
	title = {Multiple-category classification using a sequential probability ratio test (Research report 93-7)},
	year = {1993},
	note = {$\#$SP93-7},
	address = {Iowa City: American College Testing.},
	author = {Spray, J. A.}
}
@article {366,
	title = {The effect of item parameter estimation error on decisions made using the sequential probability ratio test},
	number = {Research Report 87-1},
	year = {1987},
	institution = {DTIC Document},
	address = {Iowa City, IA. USA},
	keywords = {computerized adaptive testing, Sequential probability ratio test},
	author = {Spray, J. A. and Reckase, M. D.}
}
@booklet {1607,
	title = {The effect of item parameter estimation error on the decisions made using the sequential probability ratio test (ACT Research Report Series 87-17)},
	year = {1987},
	address = {Iowa City IA: American College Testing},
	author = {Spray, J. A. and Reckase, M. D.}
}
@conference {1176,
	title = {The selection of items for decision making with a computer adaptive test},
	booktitle = {Paper presented at the annual meeting of the National Council on Measurement in Education},
	year = {1984},
	address = {New Orleans LA},
	author = {Spray, J. A. and Reckase, M. D.}
}
