Differential Item Functioning


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Associated Data

Introduction to classical and modern test theory. Under the editorship of V. Zvonnikov and M. Moscow: Logos Publ. De Ayala, R. New York: Guilford Press. Dorans, N. Demonstrating the utility of the standardization approach to assessing unexpected differential item performance on the Scholastic Aptitude Test.

Journal of Educational Measurement, 23, — Dorozhkin, E. M, Chelyshkova, M. Innovative approaches to increasing the student assessment procedures effectiveness. International Journal of Environmental and Science Education, 11 14 , Filaretov, V. Prevention of burnout syndrome. Gorbatkova, E.

Student lifestyle and health. Holland, P. Differential Item Functioning. London: Routledge. Keeves, J.

Detecting Differential Item Functioning

Edukational Reseach Methodology, and Measurement. New York: Perg. Kramer, D. Mathematical data processing in social sciences: modern methods: studies. The grant for students of higher educational institutions. Lavrakas, P. Encyclopedia of survey research methods. Thousand Oaks. Differential item functioning DIF is the preferred psychometric term for what is otherwise known as item bias.

An item displays DIF when test takers possessing the same amount of an ability or trait, but belonging to different subgroups, do not share the same likelihood of correctly answering the item. Thus, differentially functioning items elicit different responses from test takers of the same ability level. Because subgroups of test takers are often defined in terms of demographic membership e. Consider, for example, the items on a standardized test of verbal ability.


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If the content of one item is sports related, then boys of a particular ability level may have an unfair advantage over girls of that same general verbal ability level. Thus, the item favors boys because it measures a trait other than or in addition to verbal ability in this case, sports knowledge. It is important to note, however, that the mere presence of item score differences among subgroups does not necessarily indicate the presence of DIF.

Assessment of differential item functioning under cognitive diagnosis models: the DINA model e xample. E duc. Liu, Y. Improved Wald statistics for item-level model comparison in diagnostic classification models. R package version 0. Information matrix estimation procedures for cognitive diagnostic models. An improved method for differential item functioning detection in cognitive diagnosis models: an application of Wald statistic based on observed information matrix.

Item Response Theory: Methods for the Analysis of Discrete Survey Response Data

Acta Psychol. Ma, W. Model similarity, model selection, and attribute classification.


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Magis, D. A general framework and an R package for the detection of dichotomous differential item functioning. Methods 42, — Mantel, N. Chi-square tests with one degree of freedom; extensions of the mantel-haenszel procedure.

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Item Analysis – Differential Item Functioning (DIF)

Statistical aspects of the analysis of data from retrospective studies of disease. Cancer Inst. Philipp, M. On the estimation of standard errors in cognitive diagnosis models. R Core Team Vienna: R Foundation for Statistical Computing. PubMed Abstract. Robitzsch, A. R package version 7. Rupp, A. Diagnostic Measurement: Theory, Methods, and Applications.

Methods ARTICLE

Shealy, R. Psychometrika 58, — Svetina, D. Use of cognitive diagnostic model to study differential item functioning in accommodations. Behaviormetrika 44, — Swaminathan, H.

Differential Item Functioning and Differential Test Functioning (DIF - DTF)

Detecting differential item functioning using logistic regression procedures. A general diagnostic model applied to language testing data. Wang, Z. Comparison of DIF detecting methods in cognitive diagnostic test. Zhang, W. Keywords: cognitive diagnostic model, Wald statistics, differential item functioning, information matrix, logistic regression method. The use, distribution or reproduction in other forums is permitted, provided the original author s and the copyright owner s are credited and that the original publication in this journal is cited, in accordance with accepted academic practice.

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Forgot Password? Suggest a Research Topic. Introduction Cognitive diagnostic models CDMs as a class of discrete latent variable models have been developed to provide finer-grained and multidimensional diagnostic feedback information about examinees' strengths and weaknesses on a set of attributes. Background Assume that there are N examinees responding to J dichotomous items, in which K binary attributes are diagnosed.

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Differential Item Functioning Differential Item Functioning
Differential Item Functioning Differential Item Functioning
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