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Plake, Barbara S.; And Others – Educational and Psychological Measurement, 1988
The effect of item context on differential item performance based on gender on mathematics test items was studied, using 404 male and 375 female adults. The analyses were based on a modified one-parameter item response theory methodology. Gender differences emerged; however, they may be due to chance. (TJH)
Descriptors: Achievement Tests, Adults, Latent Trait Theory, Mathematics Tests
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Luecht, Richard M. – Educational and Psychological Measurement, 1987
Test Pac, a test scoring and analysis computer program for moderate-sized sample designs using dichotomous response items, performs comprehensive item analyses and multiple reliability estimates. It also performs single-facet generalizability analysis of variance, single-parameter item response theory analyses, test score reporting, and computer…
Descriptors: Computer Assisted Testing, Computer Software, Computer Software Reviews, Item Analysis
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Downey, Ronald G.; Stockdale, Margaret S. – Educational and Psychological Measurement, 1987
Lord's method for detecting subgroup bias at the item level uses a three-parameter item characteristic curve model. A chi square statistic is computed on the multivariate differences between the parameter estimates of item discrimination and difficulty. The LOGIST program and additional programs written in BASIC are used. (Author/GDC)
Descriptors: Computer Software, Item Analysis, Latent Trait Theory, Statistical Bias
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MacCann, Robert G. – Educational and Psychological Measurement, 1989
Levine's equations for random groups and unequally reliable tests can be used to equate two tests through performance on an anchor test. Levine's assumption of a parallelism requirement is not necessary; it is sufficient to assume only that the tests are congeneric, an assumption implicit in linear test equating. (SLD)
Descriptors: Equated Scores, Equations (Mathematics), Latent Trait Theory, Test Reliability
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Rogers, H. Jane; Hambleton, Ronald K. – Educational and Psychological Measurement, 1989
The validity of logistic test models and computer simulation methods for generating sampling distributions of item bias statistics was evaluated under the hypothesis of no item bias. Test data from 937 ninth-grade students were used to develop 7 steps for applying computer-simulated baseline statistics in test development. (SLD)
Descriptors: Computer Simulation, Educational Research, Evaluation Methods, Grade 9
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Goldman, Steven H.; Raju, Nambury S. – Educational and Psychological Measurement, 1986
Response data from 3,000 subjects to the SRA Attitude Survey were analyzed using the one-parameter and two-parameter logistic latent trait models. The effects of varying sample size on the accuracy of person and item parameters were investigated. (Author/BS)
Descriptors: Attitude Measures, Employee Attitudes, Goodness of Fit, Hypothesis Testing
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Garrison, Wayne M.; Baumgarten, Bruce S. – Educational and Psychological Measurement, 1986
A computerized adaptive testing procedure for measuring mathematical skills of 60 deaf college students was evaluated. Ability estimates were compared for stability to those obtained earlier from conventional testing. Adaptive testing increased measurement efficiency by reducing test length. Student attitudes toward computerized testing were…
Descriptors: Adaptive Testing, Comparative Testing, Computer Assisted Testing, Hearing Impairments
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Ludlow, Larry H. – Educational and Psychological Measurement, 1985
When the parameters of item response data are estimated by a latent trait model, some variation will remain unaccounted. If baseline graphical configurations of the residual variation can be constructed, measurement irregularities may be exposed. An analytic strategy for the graphical representation and analysis of Rasch model residuals is…
Descriptors: Goodness of Fit, Graphs, Item Analysis, Latent Trait Theory
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Smith, Richard M. – Educational and Psychological Measurement, 1985
Standard maximum likeliheed estimation was compared using two forms of robust estimation, BIWEIGHT (based on Tukey's Biweight) and AMTJACK (AMT-Robustified Jackknife), and Rasch model person analysis. The two procedures recovered the generating parameters, but Rasch person analysis also helped to identify the nature of a response disturbance. (GDC)
Descriptors: Ability, Comparative Analysis, Computer Simulation, Estimation (Mathematics)
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Birenbaum, Menucha – Educational and Psychological Measurement, 1985
Nine indices of response pattern appropriateness were compared, based on item response theory, with respect to their relation to the total test score and their effectiveness in detecting unusual response patterns. The ability to differentiate between three groups was compared: cooperative examinees, uncooperative examinees, and randomly generated…
Descriptors: Behavior Patterns, Classification, English (Second Language), Foreign Countries
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Blixt, Sonya L.; Dinero, Thomas E. – Educational and Psychological Measurement, 1985
Sato's Caution Index is a method of analyzing item response patterns independently of total test score to provide diagnostic information about students. This research supports the validity of the diagnostic interpretations of the Index when compared to graduate students' self evaluation. (Author/BS)
Descriptors: Academic Achievement, Educational Diagnosis, Graduate Students, Higher Education
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Stricker, Lawrence J. – Educational and Psychological Measurement, 1984
The stability was evaluated of a partial correlation index, comparisons of item characteristic curves, and comparisions of item difficulties in assessing race and sex differences in the performance of verbal items on the Graduate Record Examination Aptitude Test. All three indexes exhibited consistency in identifying the same items in different…
Descriptors: College Entrance Examinations, Comparative Analysis, Correlation, Difficulty Level
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Masters, Geofferey N. – Educational and Psychological Measurement, 1984
DICOT, a computer program for the Rasch analysis of classroom tests, is described. Results are presented in a self-explanatory form. Person ability and item difficulty estimates are expressed in a familiar metric. Person and item fit statistics provide a diagnosis of individual children and identification of problematic items. (Author/DWH)
Descriptors: Classroom Techniques, Foreign Countries, Item Analysis, Latent Trait Theory
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Albanese, Mark A.; Forsyth, Robert A. – Educational and Psychological Measurement, 1984
The purpose of this study was to compare the relative robustness of the one-, two-, and modified two-parameter latent trait logistic models for the Iowa Tests of Educational Development. Results suggest that the modified two-parameter model may provide the best representation of the data. (Author/BW)
Descriptors: Achievement Tests, Comparative Analysis, Goodness of Fit, Item Analysis
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Pratt, C.; Hacker, R. G. – Educational and Psychological Measurement, 1984
A unidimensional latent trait model was used to test a single-factor hypothesis of the Lawson Classroom Test of Formal Reasoning. The test failed to provide a valid measure of formal reasoning. This was a result of test format which neglected aspects of formal reasoning emphasized by Inhelder and Piaget. (Author/DWH)
Descriptors: Cognitive Processes, Group Testing, Higher Education, Latent Trait Theory
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