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Why Should We Assess the Goodness-of-Fit of IRT Models?
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Maydeu-Olivares, Alberto – Measurement: Interdisciplinary Research and Perspectives, 2013
In this rejoinder, Maydeu-Olivares states that, in item response theory (IRT) measurement applications, the application of goodness-of-fit (GOF) methods informs researchers of the discrepancy between the model and the data being fitted (the room for improvement). By routinely reporting the GOF of IRT models, together with the substantive results…
Descriptors: Goodness of Fit, Models, Evaluation Methods, Item Response Theory
Some Notes on the Reinvention of Latent Structure Models as Diagnostic Classification Models
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von Davier, Matthias – Measurement: Interdisciplinary Research and Perspectives, 2009
In this commentary, the author points out few issues, one being that there are models mislabeled as diagnostic, which deal with linear decompositions of item difficulties rather than estimating multidimensional skill variables. The author discusses the issue that there are many new names for essentially well-known models for multiple simultaneous…
Descriptors: Test Items, Probability, Models, Diagnostic Tests
Diagnostic Classification Modeling: Opportunity for Identity
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Hancock, Gregory R. – Measurement: Interdisciplinary Research and Perspectives, 2009
As Rupp and Templin (2008) stated directly, diagnostic classification methods "are confirmatory in nature." Methods, though, are neither inherently confirmatory nor exploratory. Diagnostic classification modeling, with its analytical and computational obstacles eventually yielding as a comprehensive and potent discipline emerges, will…
Descriptors: Structural Equation Models, Test Items, Models, Diagnostic Tests
Have Cognitive Diagnostic Models Delivered Their Goods? Some Substantial and Methodological Concerns
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Wilhelm, Oliver; Robitzsch, Alexander – Measurement: Interdisciplinary Research and Perspectives, 2009
The paper by Rupp and Templin (2008) is an excellent work on the characteristics and features of cognitive diagnostic models (CDM). In this article, the authors comment on some substantial and methodological aspects of this focus paper. They organize their comments by going through issues associated with the terms "cognitive,"…
Descriptors: Research Methodology, Test Items, Models, Diagnostic Tests
Shadow Education: Theory, Analysis and Future Directions--A Rejoinder
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Buchmann, Claudia; Condron, Dennis J.; Roscigno, Vincent J. – Social Forces, 2010
The authors welcome and appreciate the comments of Eric Grodsky and Sigal Alon on their article "Shadow Education, American Style: Test Preparation, the SAT and College Enrollment." In their comments, Grodsky takes issue with several important theoretical and methodological aspects of their article and Alon highlights key processes…
Descriptors: Race, Educational Mobility, Test Preparation, College Entrance Examinations
Learning in the Shadows and in the Light of Day: A Commentary on "Shadow Education, American Style: Test Preparation, the SAT and College Enrollment"
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Grodsky, Eric – Social Forces, 2010
Buchmann, Condron and Roscigno argue in their article, "Shadow Education, American Style: Test Preparation, the SAT and College Enrollment," that the activities in which students engage to prepare for college entrance exams are forms of shadow education, a means by which more advantaged parents seek to pass their privileged status along…
Descriptors: Enrollment, Criticism, Research Problems, Test Preparation
The "Goodness of Fit" Model of Temperament--Context Relations: Interaction or Correlation?
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Windle, Michael; Lerner, Richard M. – New Directions for Child Development, 1986
Reviews the research that has tested the "goodness of fit" model of temperament-context relations and proposes that research aimed at testing this model should examine how inter-individual differences in interactions between children and their contexts over time establish correlations between individuals and their settings. (HOD)
Descriptors: Adjustment (to Environment), Children, Goodness of Fit, Individual Development