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. (1990). An adaptive algebra test: A testlet-based, hierarchically structured test with validity-based scoring. ETS Technical Report 90-92.
. (1998). Adaptive testing without IRT. In Paper presented at the annual meeting of the National Council on Measurement in Education. San Diego CA.
. (2002). Adaptive testing without IRT in the presence of multidimensionality (Research Report 02-09). Princeton NJ: Educational Testing Service.
. (1998). A Bayesian approach to detection of item preknowledge in a CAT. In Paper presented at the annual meeting of the National Council on Measurement in Education. San Diego CA.
. (1995). A Bayesian computerized mastery model with multiple cut scores. In Paper presented at the annual meeting of the National Council on Measurement in Education. San Francisco CA.
. (2003). A Bayesian method for the detection of item preknowledge in computerized adaptive testing. Applied Psychological Measurement, 27, 121-137.
. (1991). Building algebra testlets: A comparison of hierarchical and linear structures. Journal of Educational Measurement, 8, xxx-xxx.
. (1998). Comparability of paper-and-pencil and computer adaptive test scores on the GRE General Test (No. ETS Research Report 98-38). presented at the August, 1998, Princeton, N.J.: Educational Testing Services.
. (1998). Comparability of paper-and-pencil and computer adaptive test scores on the GRE General Test (GRE Board Professional Report No 95-08P; Educational Testing Service Research Report 98-38). Princeton, NJ: Educational Testing Service.
. (2002). A comparison of computer mastery models when pool characteristics vary. In Paper presented at the annual meeting of the National Council on Measurement in Education. New Orleans LA.
sm02-01.pdf (691.36 KB). (1992). A comparison of the performance of simulated hierarchical and linear testlets. Journal of Educational Measurement, 29, 243-251.
. (1995). A comparison of two IRT-based models for computerized mastery testing when item parameter estimates are uncertain. In Paper presented at the annual meeting of the American Educational Research Association. San Francisco.
. (1995). Computer-adaptive testing: A new breed of assessment. Journal of the American Dietetic Association, 95, 1326-1327.
. (1995). Computer-adaptive testing: A new breed of assessment. Journal of the American Dietetic Association, 95, 1326-1327.
. (1993). Computerized mastery testing using fuzzy set decision theory. Applied Measurement in Education, 6, 181-193.
. (1994). Computerized mastery testing using fuzzy set decision theory (Research Report 94-37). Princeton NJ: Educational Testing Service.
. (1992). Computerized mastery testing with nonequivalent testlets. Applied Psychological Measurement, 16, 65-76.
. (1992). Computerized Mastery Testing With Nonequivalent Testlets. Applied Psychological Measurement, 16(1), 65-76.
v16n1p065.pdf (726.94 KB). (1998). Controlling item exposure conditional on ability in computerized adaptive testing. Journal of Educational & Behavioral Statistics, 23, 57-75.
. (1995). Controlling item exposure conditional on ability in computerized adaptive testing (Research Report 95-25). Princeton NJ: Educational Testing Service.
. (1999). Detecting item memorization in the CAT environment. Applied Psychological Measurement, 23, 147-160.
. (1998). Expected losses for individuals in Computerized Mastery Testing. In Paper presented at the annual meeting of National Council on Measurement in Education. San Diego.
. (1997). Incorporating decision consistency into Bayesian sequential testing. In Paper presented at the annual meeting of National Council on Measurement in Education. Chicago.
. (2000). Methods of controlling the exposure of items in CAT. In . W. J. van der Linden and C. A. W. Glas (eds.), Computerized adaptive testing: Theory and practice (pp. 163-182). Norwell MA: Kluwer.
. (1998). A new approach for the detection of item preknowledge in computerized adaptive testing. In Paper presented at the annual meeting of the Psychometric Society. Urbana, IL.
. (1995). A new method of controlling item exposure in computerized adaptive testing (Research Report 95-25). Princeton NJ: Educational Testing Service.
. (2009). Optimizing item exposure control algorithms for polytomous computerized adaptive tests with restricted item banks. In . D. J. Weiss (Ed.), Proceedings of the 2009 GMAC Conference on Computerized Adaptive Testing.
cat09chajewski.pdf (922.78 KB). (1996). Person-fit indices and their role in the CAT environment. In Paper presented at the Annual meeting of the National Council on Measurement in Education. New York NY.
. (1996). Person-fit indices and their role in the CAT environment. In Paper presented at the annual meeting of the National Council on Measurement in Education. New York.
. (1996). A search procedure to determine sets of decision points when using testlet-based Bayesian sequential testing procedures. In Paper presented at the annual meeting of National Council on Measurement in Education. New York.
. (1991). Some empirical guidelines for building testlets (Technical Report 91-56). Princeton NJ: Educational Testing Service, Program Statistics Research.
. (2007). Some thoughts on controlling item exposure in adaptive testing. In . D. J. Weiss (Ed.), Proceedings of the 2007 GMAC Conference on Computerized Adaptive Testing.
cat07lewis.pdf (356.34 KB). (1990). Using Bayesian Decision Theory to Design a Computerized Mastery Test. Applied Psychological Measurement, 14(4), 367-386.
v14n4p367.pdf (1.29 MB)