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Chon, Kyong Hee; Lee, Won-Chan; Ansley, Timothy N. – Applied Measurement in Education, 2013
Empirical information regarding performance of model-fit procedures has been a persistent need in measurement practice. Statistical procedures for evaluating item fit were applied to real test examples that consist of both dichotomously and polytomously scored items. The item fit statistics used in this study included the PARSCALE's G[squared],…
Descriptors: Test Format, Test Items, Item Analysis, Goodness of Fit
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von Schrader, Sarah; Ansley, Timothy – Applied Measurement in Education, 2006
Much has been written concerning the potential group differences in responding to multiple-choice achievement test items. This discussion has included references to possible disparities in tendency to omit such test items. When test scores are used for high-stakes decision making, even small differences in scores and rankings that arise from male…
Descriptors: Gender Differences, Multiple Choice Tests, Achievement Tests, Grade 3
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Feldt, Leonard S. – Applied Measurement in Education, 2002
Considers the degree of bias in testlet-based alpha (internal consistency reliability) through hypothetical examples and real test data from four tests of the Iowa Tests of Basic Skills. Presents a simple formula for computing a testlet-based congeneric coefficient. (SLD)
Descriptors: Estimation (Mathematics), Reliability, Statistical Bias, Test Format
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Lee, Guemin – Applied Measurement in Education, 2000
Investigated incorporating a testlet definition into the estimation of the conditional standard error of measurement (SEM) for tests composed of testlets using five conditional SEM estimation methods. Results from 3,876 tests from the Iowa Tests of Basic Skills and 1,000 simulated responses show that item-based methods provide lower conditional…
Descriptors: Error of Measurement, Estimation (Mathematics), Simulation, Test Construction
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Ansley, Timothy N.; Forsyth, Robert A. – Applied Measurement in Education, 1990
The interaction of reading and computational abilities in solving mathematics word problems was investigated with the responses of about 20,000 fourth graders and 20,000 eighth graders to items from the Iowa Tests of Basic Skills. Item responses exhibited different types of interaction, a finding with implications for item-response theory…
Descriptors: Computation, Elementary Education, Elementary School Students, Grade 4
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Moore, William P. – Applied Measurement in Education, 1994
Teacher testing-related attitudes and practices related to court-ordered achievement testing were studied through a mail survey completed by 79 elementary school teachers in a midwestern urban district. Teachers engaged in a large number of test preparation practices and reported finding minimal value in purpose or results of testing. (SLD)
Descriptors: Achievement Tests, Court Litigation, Educational Assessment, Educational Practices