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. (1985). Methods of selecting successive items in adaptive testing. In Unpublished manuscript. University of Pittsburgh.
. (1995). Recursive maximum likelihood estimation, sequential designs, and computerized adaptive testing. In Paper presented at the Eleventh Workshop on Item Response Theory. University of Twente, the Netherlands.
. (1996). Building a statistical foundation for computerized adaptive testing. In Paper presented at the annual meeting of the Psychometric Society. Banff, Alberta, Canada.
. (1996). Conducting self-adapted testing using MicroCAT. Educational and Psychological Measurement, 56, 821-827.
. (1996). A global information approach to computerized adaptive testing. Applied Psychological Measurement, 20, 213-229.
. (1996). A Global Information Approach to Computerized Adaptive Testing. Applied Psychological Measurement, 20(3), 213-229.
v20n3p213.pdf (1.91 MB). (1996). Recursive maximum likelihood estimation, sequential design, and computerized adaptive testing. Princeton NJ: Educational Testing Service.
. (1997). Multi-stage CAT with stratified design. In Paper presented at the annual meeting of the Psychometric Society. Gatlinburg TN.
. (1997). Nonlinear sequential designs for logistic item response theory models with applications to computerized adaptive tests. The Annals of Statistics.
. (1998). Adaptive testing without IRT. In Paper presented at the annual meeting of the National Council on Measurement in Education. San Diego CA.
. (1998). The impact of nonmodel-fitting responses in a realistic CAT environment. In Paper presented at the annual meeting of the National Council on Measurement in Education. San Diego CA.
. (1998). Nonmodel-fitting responses and robust ability estimation in a realistic CAT environment. In Paper presented at the annual meeting of the National Council on Measurement in Education. San Diego CA.
. (1998). Simulating nonmodel-fitting responses in a CAT Environment (Research Report 98-10). Iowa City IA: ACT Inc. (Also presented at National Council on Measurement in Education, 1999: ERIC No. ED 427 042).
. (1999). Adjusting "scores" from a CAT following successful item challenges. In Paper presented at the annual meeting of the American Educational Research Association. Montreal, Canada.
wa99-01.pdf (149.06 KB). (1999). a-stratified multistage computerized adaptive testing. Applied Psychological Measurement, 23, 211-222.
. (1999). a-stratified multistage computerized adaptive testing. Applied Psychological Measurement, 23, 211–222.
. (1999). a-stratified multistage computerized adaptive testing. Applied Psychological Measurement, 23, 211-222.
. (1999). Comparison of the a-stratified method, the Sympson-Hetter method, and the matched difficulty method in CAT administration. In Paper presented at the annual meeting of the Psychometric Society. Lawrence KS.
. (1999). Performance of the Sympson-Hetter exposure control algorithm with a polytomous item bank. In Paper presented at the annual meeting of American Educational Research Association. Montreal, Canada.
. (2000). Effects of nonequivalence of item pools on ability estimates in CAT. In Paper presented at the annual meeting of the National Council on Measurement in Education. New Orleans LA.
ba00-01.pdf (656.37 KB). (2000). Multiple stratification CAT designs with content control. Unpublished manuscript.
. (2001). a-stratified CAT design with content-blocking. In Paper presented at the Annual Meeting of the Psychometric Society. King of Prussia, PA.
yi01-02.pdf (409.92 KB). (2001). a-stratified multistage computerized adaptive testing with b blocking. Applied Psychological Measurement, 25, 333-41.
. (2001). a-Stratified multistage computerized adaptive testing with b blocking. Applied Psychological Measurement, 25, 333-341.
. (2001). A comparative study of on line pretest item—Calibration/scaling methods in computerized adaptive testing. Journal of Educational Measurement, 38, 191-212.
. (2001). Comparison of the SPRT and CMT procedures in computerized adaptive testing. In Paper presented at the annual meeting of the American Educational Research Association. Seattle WA.
. (2001). Data sparseness and online pretest calibration/scaling methods in CAT. In Paper presented at the annual meeting of the American Educational Research Association. Seattle.
. (2001). Deriving a stopping rule for sequential adaptive tests. In Paper presented at the annual meeting of the American Educational Research Association. Seattle WA.
gr01-01.pdf (110.09 KB). (2001). Impact of scoring options for not reached items in CAT. In Paper presented at the annual meeting of the National Council on Measurement in Education. Seattle WA.
yi01-01.pdf (231.72 KB). (2001). On maximizing item information and matching difficulty with ability. Psychometrika, 66, 69-77.
. (2002). Accuracy of the ability estimate and the item exposure rate under multidimensional adaptive testing with item constraints. In Paper presented at the annual meeting of the American Educational Research Association. New Orleans LA.
. (2002). Adaptive testing without IRT in the presence of multidimensionality (Research Report 02-09). Princeton NJ: Educational Testing Service.
. (2002). Data sparseness and on-line pretest item calibration-scaling methods in CAT. Journal of Educational Measurement, 39, 207-218.
. (2002). Incorporating the Sympson-Hetter exposure control method into the a-stratified method with content blocking. In Paper presented at the annual meeting of the American Educational Research Association. New Orleans, LA.
yi02-01.pdf (386.73 KB). (2002). Statistical indexes for monitoring item behavior under computer adaptive testing environment. In (Original title: Detecting item misfit in computerized adaptive testing.) Paper presented at the annual meeting of the American Educational Research Association. New Orleans LA.
zh02-02.pdf (2.23 MB). (2002). To weight or not to weight – balancing influence of initial and later items in CAT. In Paper presented at the annual meeting of the National Council on Measurement in Education. New Orleans LA.
ch02-01.pdf (251.46 KB). (2003). a-Stratified multistage CAT design with content-blocking. British Journal of Mathematical and Statistical Psychology, 56, 359–378.
. (2003). Effects of test administration mode on item parameter estimates. In Paper presented at the annual meeting of the National Council on Measurement in Education. Chicago IL.
yi03-02.pdf (232.48 KB). (2003). Implementing the a-stratified method with b blocking in computerized adaptive testing with the generalized partial credit model. In Paper presented at the annual meeting of the American Educational Research Association. Chicago IL.
yi03-01.pdf (495.88 KB). (2003). Test-score comparability, ability estimation, and item-exposure control in computerized adaptive testing. In Paper presented at the Annual meeting of the National Council on Measurement in Education. Chicago IL.
. (2004). Adaptive Testing With Regression Trees in the Presence of Multidimensionality. Journal of Educational and Behavioral Statistics, 29, 293-316. doi:10.3102/10769986029003293
. (2004). Pre-equating: a simulation study based on a large scale assessment model. Journal of Applied Measurement, 5, 301-18.
. (2005). Design and evaluation of an XML-based platform-independent computerized adaptive testing system. IEEE Transactions on Education, 48(2), 230-237.
. (2005). Identifying practical indices for enhancing item pool security. In Paper presented at the annual meeting of the National Council on Measurement in Education (NCME). Montreal, Canada.
. (2006). Comparing methods of assessing differential item functioning in a computerized adaptive testing environment. Journal of Educational Measurement, 43, 245-264.
. (2006). Comparing Methods of Assessing Differential Item Functioning in a Computerized Adaptive Testing Environment. Journal of Educational Measurement, 43, 245–264. doi:10.1111/j.1745-3984.2006.00015.x
. (2006). Effects of Estimation Bias on Multiple-Category Classification With an IRT-Based Adaptive Classification Procedure. Educational and Psychological Measurement, 66, 545-564. doi:10.1177/0013164405284031
. (2007). The Patient-Reported Outcomes Measurement Information System (PROMIS): progress of an NIH Roadmap cooperative group during its first two years. Medical Care, 45, S3-S11.
. (2007). Two-phase item selection procedure for flexible content balancing in CAT. Applied Psychological. Measurement, 3, 467–482.
. (2007). Two-Phase Item Selection Procedure for Flexible Content Balancing in CAT. Applied Psychological Measurement, 31, 467-482. doi:10.1177/0146621606292933
. (2008). Comparability of Computer-Based and Paper-and-Pencil Testing in K–12 Reading Assessments. Educational and Psychological Measurement, 68, 5-24. doi:10.1177/0013164407305592
. (2008). To Weight Or Not To Weight? Balancing Influence Of Initial Items In Adaptive Testing. Psychometrica, 73(3), 441-450. doi:10.1007/S11336-007-9047-7
. (2009). Constraint-Weighted a-Stratification for Computerized Adaptive Testing With Nonstatistical Constraints. Educational and Psychological Measurement, 69, 35-49. doi:10.1177/0013164408322030
. (2010). Development and evaluation of a confidence-weighting computerized adaptive testing. Educational Technology & Society, 13(3), 163–176.
. (2010). Development and validation of patient-reported outcome measures for sleep disturbance and sleep-related impairments. Sleep, 33, 781-92. presented at the Jun 1.
. (2010). Development of computerized adaptive testing (CAT) for the EORTC QLQ-C30 physical functioning dimension. Quality of Life Research , 20, 479-490.
. (2010). Improving Cognitive Diagnostic Computerized Adaptive Testing by Balancing Attribute Coverage: The Modified Maximum Global Discrimination Index Method. Educational and Psychological Measurement, 70, 902-913. doi:10.1177/0013164410366693
. (2011). Cross-cultural development of an item list for computer-adaptive testing of fatigue in oncological patients. Health and Quality of Life Outcomes. presented at the March 29, 2011.
. (2012). An Empirical Evaluation of the Slip Correction in the Four Parameter Logistic Models With Computerized Adaptive Testing. Applied Psychological Measurement, 36, 75-87. doi:10.1177/0146621611432862