TY - JOUR T1 - Optimizing cognitive ability measurement with multidimensional computer adaptive testing JF - International Journal of Testing Y1 - In Press A1 - Makransky, G. A1 - Glas, C. A. W. ER - TY - JOUR T1 - Measuring patient-reported outcomes adaptively: Multidimensionality matters! JF - Applied Psychological Measurement Y1 - 2018 A1 - Paap, Muirne C. S. A1 - Kroeze, Karel A. A1 - Glas, C. A. W. A1 - Terwee, C. B. A1 - van der Palen, Job A1 - Veldkamp, Bernard P. ER - TY - JOUR T1 - The applicability of multidimensional computerized adaptive testing to cognitive ability measurement in organizational assessment JF - International Journal of Testing Y1 - 2013 A1 - Makransky, G. A1 - Glas, C. A. W. VL - 13 IS - 2 ER - TY - JOUR T1 - Improving personality facet scores with multidimensional computerized adaptive testing: An illustration with the NEO PI-R JF - Assessment Y1 - 2012 A1 - Makransky, G. A1 - Mortensen, E. L. A1 - Glas, C. A. W. ER - TY - JOUR T1 - Unproctored Internet test verification: Using adaptive confirmation testing JF - Organizational Research Methods Y1 - 2011 A1 - Makransky, G. A1 - Glas, C. A. W. VL - 14 ER - TY - CHAP T1 - Adaptive Mastery Testing Using a Multidimensional IRT Model T2 - Elements of Adaptive Testing Y1 - 2010 A1 - Glas, C. A. W. A1 - Vos, H. J. JF - Elements of Adaptive Testing ER - TY - JOUR T1 - An automatic online calibration design in adaptive testing JF - Journal of Applied Testing Technology Y1 - 2010 A1 - Makransky, G. A1 - Glas, C. A. W. VL - 11 ER - TY - BOOK T1 - Elements of Adaptive Testing Y1 - 2010 A1 - van der Linden, W. J. A1 - Glas, C. A. W. PB - Springer CY - New York ER - TY - CHAP T1 - Estimation of the Parameters in an Item-Cloning Model for Adaptive Testing T2 - Elements of Adaptive Testing Y1 - 2010 A1 - Glas, C. A. W. A1 - van der Linden, W. J. A1 - Geerlings, H. JF - Elements of Adaptive Testing ER - TY - CHAP T1 - Item Parameter Estimation and Item Fit Analysis T2 - Elements of Adaptive Testing Y1 - 2010 A1 - Glas, C. A. W. JF - Elements of Adaptive Testing ER - TY - JOUR T1 - Marginal likelihood inference for a model for item responses and response times JF - British Journal of Mathematical and Statistical Psychology Y1 - 2010 A1 - Glas, C. A. W. A1 - van der Linden, W. J. AB -

Marginal maximum-likelihood procedures for parameter estimation and testing the fit of a hierarchical model for speed and accuracy on test items are presented. The model is a composition of two first-level models for dichotomous responses and response times along with multivariate normal models for their item and person parameters. It is shown how the item parameters can easily be estimated using Fisher's identity. To test the fit of the model, Lagrange multiplier tests of the assumptions of subpopulation invariance of the item parameters (i.e., no differential item functioning), the shape of the response functions, and three different types of conditional independence were derived. Simulation studies were used to show the feasibility of the estimation and testing procedures and to estimate the power and Type I error rate of the latter. In addition, the procedures were applied to an empirical data set from a computerized adaptive test of language comprehension.

VL - 63 SN - 0007-1102 (Print)0007-1102 (Linking) N1 - Glas, Cees A Wvan der Linden, Wim JResearch Support, Non-U.S. Gov'tEnglandThe British journal of mathematical and statistical psychologyBr J Math Stat Psychol. 2010 Nov;63(Pt 3):603-26. Epub 2010 Jan 28. ER - TY - CHAP T1 - Testlet-Based Adaptive Mastery Testing T2 - Elements of Adaptive Testing Y1 - 2010 A1 - Vos, H. J. A1 - Glas, C. A. W. JF - Elements of Adaptive Testing ER - TY - CHAP T1 - Statistical aspects of adaptive testing Y1 - 2007 A1 - van der Linden, W. J. A1 - Glas, C. A. W. CY - C. R. Rao and S. Sinharay (Eds.), Handbook of statistics (Vol. 27: Psychometrics) (pp. 801838). Amsterdam: North-Holland. ER - TY - JOUR T1 - Computerized adaptive testing with item cloning JF - Applied Psychological Measurement Y1 - 2003 A1 - Glas, C. A. W. A1 - van der Linden, W. J. KW - computerized adaptive testing AB - (from the journal abstract) To increase the number of items available for adaptive testing and reduce the cost of item writing, the use of techniques of item cloning has been proposed. An important consequence of item cloning is possible variability between the item parameters. To deal with this variability, a multilevel item response (IRT) model is presented which allows for differences between the distributions of item parameters of families of item clones. A marginal maximum likelihood and a Bayesian procedure for estimating the hyperparameters are presented. In addition, an item-selection procedure for computerized adaptive testing with item cloning is presented which has the following two stages: First, a family of item clones is selected to be optimal at the estimate of the person parameter. Second, an item is randomly selected from the family for administration. Results from simulation studies based on an item pool from the Law School Admission Test (LSAT) illustrate the accuracy of these item pool calibration and adaptive testing procedures. (PsycINFO Database Record (c) 2003 APA, all rights reserved). VL - 27 N1 - References .Sage Publications, US ER - TY - CONF T1 - Modeling variability in item parameters in CAT T2 - Paper presented at the Annual Meeting of the National Council on Measurement in Education Y1 - 2001 A1 - Glas, C. A. W. A1 - van der Linden, W. J. JF - Paper presented at the Annual Meeting of the National Council on Measurement in Education CY - Seattle WA ER - TY - ABST T1 - Adaptive mastery testing using a multidimensional IRT model and Bayesian sequential decision theory (Research Report 00-06) Y1 - 2000 A1 - Glas, C. A. W. A1 - Vos, H. J. CY - Enschede, The Netherlands: University of Twente, Faculty of Educational Science and Technology, Department of Measurement and Data Analysis ER - TY - JOUR T1 - Capitalization on item calibration error in adaptive testing JF - Applied Measurement in Education Y1 - 2000 A1 - van der Linden, W. J. A1 - Glas, C. A. W. KW - computerized adaptive testing AB - (from the journal abstract) In adaptive testing, item selection is sequentially optimized during the test. Because the optimization takes place over a pool of items calibrated with estimation error, capitalization on chance is likely to occur. How serious the consequences of this phenomenon are depends not only on the distribution of the estimation errors in the pool or the conditional ratio of the test length to the pool size given ability, but may also depend on the structure of the item selection criterion used. A simulation study demonstrated a dramatic impact of capitalization on estimation errors on ability estimation. Four different strategies to minimize the likelihood of capitalization on error in computerized adaptive testing are discussed. VL - 13 N1 - References .Lawrence Erlbaum, US ER - TY - BOOK T1 - Computerized adaptive testing: Theory and practice Y1 - 2000 A1 - van der Linden, W. J. A1 - Glas, C. A. W. PB - Kluwer Academic Publishers CY - Dordrecht, The Netherlands ER - TY - CHAP T1 - Cross-validating item parameter estimation in adaptive testing Y1 - 2000 A1 - van der Linden, W. J. A1 - Glas, C. A. W. CY - A. Boorsma, M. A. J. van Duijn, and T. A. B. Snijders (Eds.) (pp. 205-219), Essays on item response theory. New York: Springer. ER - TY - CHAP T1 - Item calibration and parameter drift Y1 - 2000 A1 - Glas, C. A. W. CY - W. J. van der linden and C. A. W. Glas (Eds.). Computerized adaptive testing: Theory and practice (pp.183-199). Norwell MA: Kluwer Academic. ER - TY - CHAP T1 - MML and EAP estimation in testlet-based adaptive testing T2 - Computerized adaptive testing: Theory and practice Y1 - 2000 A1 - Glas, C. A. W. A1 - Wainer, H., A1 - Bradlow, E. T. JF - Computerized adaptive testing: Theory and practice PB - Kluwer Academic Publishers CY - Dordrecht, The Netherlands ER - TY - CHAP T1 - Testlet-based adaptive mastery testing, W Y1 - 2000 A1 - Vos, H. J. A1 - Glas, C. A. W. CY - J. van der Linden (Ed.), Computerized adaptive testing: Theory and practice (pp. 289-309). Norwell MA: Kluwer. ER - TY - CHAP T1 - Item calibration and parameter drift Y1 - 1999 A1 - Glas, C. A. W. A1 - Veerkamp, W. J. J. CY - W. J. van der Linden and C. A. W. Glas (Eds.), Computer adaptive testing: Theory and practice. Norwell MA: Kluwer. ER - TY - ABST T1 - Adaptive mastery testing using the Rasch model and Bayesian sequential decision theory (Research Report 98-15) Y1 - 1998 A1 - Glas, C. A. W. A1 - Vos, H. J. CY - Enschede, The Netherlands: University of Twente, Faculty of Educational Science and Technology, Department of Measurement and Data Analysis ER - TY - ABST T1 - Capitalization on item calibration error in adaptive testing (Research Report 98-07) Y1 - 1998 A1 - van der Linden, W. J. A1 - Glas, C. A. W. CY - Enschede, The Netherlands: University of Twente, Faculty of Educational Science and Technology, Department of Measurement and Data Analysis ER - TY - ABST T1 - Quality control of on-line calibration in computerized adaptive testing (Research Report 98-03) Y1 - 1998 A1 - Glas, C. A. W. CY - Enschede, The Netherlands: University of Twente, Faculty of Educational Science and Technology, Department of Measurement and Data Analysis ER - TY - ABST T1 - Statistical tests for person misfit in computerized adaptive testing (Research Report 98-01) Y1 - 1998 A1 - Glas, C. A. W. A1 - Meijer, R. R. A1 - van Krimpen-Stoop, E. M. L. A. CY - Enschede, The Netherlands : University of Twente, Faculty of Educational Science and Technology, Department of Measurement and Data Analysis ER - TY - RPRT T1 - Statistical tests for person misfit in computerized adaptive testing Y1 - 1998 A1 - Glas, C. A. W. A1 - Meijer, R. R. A1 - van Krimpen-Stoop, E. M. PB - Faculty of Educational Science and Technology, Univeersity of Twente CY - Enschede, The Netherlands SN - 98-01 ER - TY - JOUR T1 - The Rasch model and multi-stage testing JF - Journal of Educational and Behavioral Statistics Y1 - 1988 A1 - Glas, C. A. W. VL - 13 ER -