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Direct linkShin, Chingwei David; Chien, Yuehmei; Way, Walter Denny – Pearson, 2012
Content balancing is one of the most important components in the computerized adaptive testing (CAT) especially in the K to 12 large scale tests that complex constraint structure is required to cover a broad spectrum of content. The purpose of this study is to compare the weighted penalty model (WPM) and the weighted deviation method (WDM) under…
Descriptors: Computer Assisted Testing, Elementary Secondary Education, Test Content, Models
Meyers, Jason L.; Miller, G. Edward; Way, Walter D. – Applied Measurement in Education, 2009
In operational testing programs using item response theory (IRT), item parameter invariance is threatened when an item appears in a different location on the live test than it did when it was field tested. This study utilizes data from a large state's assessments to model change in Rasch item difficulty (RID) as a function of item position change,…
Descriptors: Test Items, Test Content, Testing Programs, Simulation
Cui, Zhongmin; Kolen, Michael J. – Applied Psychological Measurement, 2008
This article considers two methods of estimating standard errors of equipercentile equating: the parametric bootstrap method and the nonparametric bootstrap method. Using a simulation study, these two methods are compared under three sample sizes (300, 1,000, and 3,000), for two test content areas (the Iowa Tests of Basic Skills Maps and Diagrams…
Descriptors: Test Length, Test Content, Simulation, Computation
Peer reviewedDavis, Laurie Laughlin; Pastor, Dena A.; Dodd, Barbara G.; Chiang, Claire; Fitzpatrick, Steven J. – Journal of Applied Measurement, 2003
Examined the effectiveness of the Sympson-Hetter technique and rotated content balancing relative to no exposure control and no content rotation conditions in a computerized adaptive testing system based on the partial credit model. Simulation results show the Sympson-Hetter technique can be used with minimal impact on measurement precision,…
Descriptors: Adaptive Testing, Computer Assisted Testing, Selection, Simulation
Peer reviewedBarrett, Richard S. – Public Personnel Management, 1992
The Content Validation Form is presented as a means of proving that occupational tests provide a representative work sample or knowledge, skill, or ability necessary for a job. It is best used during test construction by a panel of subject matter experts. (SK)
Descriptors: Content Validity, Item Analysis, Multiple Choice Tests, Occupational Tests
Download full textThomasson, Gary L. – 1997
Score comparability is important to those who take tests and those who use them. One important concept related to test score comparability is that of "equity," which is defined as existing when examinees are indifferent as to which of two alternate forms of a test they would prefer to take. By their nature, computerized adaptive tests…
Descriptors: Ability, Adaptive Testing, Comparative Analysis, Computer Assisted Testing
Robin, Frédéric; van der Linden, Wim J.; Eignor, Daniel R.; Steffen, Manfred; Stocking, Martha L. – ETS Research Report Series, 2005
The relatively new shadow test approach (STA) to computerized adaptive testing (CAT) proposed by Wim van der Linden is a potentially attractive alternative to the weighted deviation algorithm (WDA) implemented at ETS. However, it has not been evaluated under testing conditions representative of current ETS testing programs. Of interest was whether…
Descriptors: Test Construction, Computer Assisted Testing, Simulation, Evaluation Methods
