Search results for author:"Charles Lewis"
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Applied Psychological Measurement Vol. 14, No. 4 (1990) pp. 367–86
A theoretical framework for mastery testing based on item response theory and Bayesian decision theory is described and illustrated. Implementation depends on the availability of (1) a computerized test delivery system; (2) a pool of pretested items;...
Applied Psychological Measurement Vol. 16, No. 1 (1992) pp. 65–76
A procedure is introduced for determining the effect of testlet nonequivalence on operating characteristics of a testlet-based computerized mastery test (CMT). The procedure, which involves estimating the CMT decision rule twice with testlet...
Journal of Educational Measurement Vol. 27, No. 1 (1990) pp. 1–14
Three different applications of the testlet concept are presented, and the psychometric models most suitable for each application are described. Difficulties that testlets can help overcome include (1) context effects; (2) item ordering; and (3)...
Machine-Mediated Learning Vol. 2, No. 4 (1988) pp. 283–86
Introduces a theoretical framework for mastery testing, using Item Response Theory and Bayesian Decision Theory. The idea of sequential testing is developed, with the goal of providing longer or shorter tests as needed, and a computerized...
Journal of Educational and Behavioral Statistics Vol. 23, No. 1 (1998) pp. 57–75
Ensuring item and pool security in a continuous testing environment is explored through a new method of controlling exposure rate of items conditional on ability level in computerized testing. Properties of this conditional control on exposure rate, ...
Applied Psychological Measurement Vol. 23, No. 2 (1999) pp. 147–60
Evaluated procedures applying person-fit indices to identify individuals who had previously memorized test items in computerized adaptive-testing situations. All of the indices studied showed little power to detect the use of memorization. Discusses ...
Applied Psychological Measurement Vol. 27, No. 2 (2003) pp. 121–37
Explored procedures to detect test takers using item preknowledge in computerized adaptive testing and suggested a Bayesian posterior log odds ratio index for this purpose. Simulation results support the use of the odds ratio index. (SLD)
Journal of Educational and Behavioral Statistics Vol. 29, No. 3 (2004) pp. 293–316
It is unrealistic to suppose that standard item response theory (IRT) models will be appropriate for all the new and currently considered computer-based tests. In addition to developing new models, we also need to give attention to the possibility...
Computers and Composition Vol. 14, No. 2 (1997) pp. 269–278
This article explores the notion of computer access for composition students. The authors focus on the need for a more complex understanding of access, given the real conditions under which students produce writing. Analyzing the issue requires...
Annual Meeting of the National Council on Measurement in Education (NCME) 1998 (April 1998)
It is unrealistic to suppose that standard item response theory (IRT) models will be appropriate for all new and currently considered computer-based tests. In addition to developing new models, researchers will need to give some attention to the...
Journal of Educational Measurement Vol. 35, No. 3 (1998) pp. 199–221
Constructed a pool of items from operational tests of mathematics to investigate the feasibility of using automated-test-assembly (ATA) methods to moderate simultaneously possibly irrelevant differences between the performance of women and men and...
Journal of Geography Vol. 111, No. 3 (2012) pp. 113–122
The processes and implications of urban growth are studied in a variety of disciplines as urban growth affects both the physical and human landscape. Remote sensing methods provide ways to visualize and mathematically represent urban growth; and...
Marguerite Koole; Kevin Lewis; Julita Vassileva; Ralph Deters; Barbara Aburachid Rocha; Lucas de Camargo Silva; Nafisul Kiron; Kristine Dreaver-Charles; Calista Cooper
World Conference on Mobile and Contextual Learning 2020 (Oct 11, 2020) pp. 111–115
The nisotak mobile application is intended to provide language instruction and exercises for learning Cree syntax (word and sentence formation). The project involves the development of a database of morphemes and syntactic structures, a backend,...