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Author: Charles K. Parsons
Publisher:
ISBN:
Category : Item response theory
Languages : en
Pages : 60
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Book Description
Author: Charles K. Parsons
Publisher:
ISBN:
Category : Item response theory
Languages : en
Pages : 60
Get Book Here
Book Description
Author: C. K. Parsons
Publisher:
ISBN:
Category :
Languages : en
Pages : 51
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Book Description
Persistent differences between racial groups on standardized aptitude test scores have suggested the potential for unfair discrimination against members of different racial and ethnic subpopulations. Because many occupational and educational opportunities are affected by mental test scores, the issue of test bias has consequences for many people in our society. Of the many statistical techniques proposed for detecting biased items there appears to be a preference for techniques based on a latent trait or item response theory (IRT) because sample estimates of population item parameters are invariant. This advantage occurs because, when the IRT model is valid, item parameters are invariant with respect to subpopulation ability distributions. This study concerns the effects of test multidimensionality on recommended item bias statistics. Simulation data samples (N=1,000 each) on a 50 item test were generated using a factor model described and used by Drasgow and Parsons. Subpopulation differences on common factors led to item bias that was identified to some extent by both chi-square and IRT bias indices. The signed indices were especially effective in distinguishing biased items from unbiased items. However, the use of either the signed chi-square or signed IRT index in multidimensional data clearly requires a priori knowledge of which subpopulation is at a disadvantage. This unexpected finding suggests further study of the properties of signed indices as well as a reevaluation of previous simulation research that has appeared to support their validity.
Author: M.D. Reckase
Publisher: Springer Science & Business Media
ISBN: 0387899766
Category : Social Science
Languages : en
Pages : 355
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Book Description
First thorough treatment of multidimensional item response theory Description of methods is supported by numerous practical examples Describes procedures for multidimensional computerized adaptive testing
Author: Wes Bonifay
Publisher: SAGE Publications
ISBN: 1506384234
Category : Social Science
Languages : en
Pages : 105
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Book Description
Several decades of psychometric research have led to the development of sophisticated models for multidimensional test data, and in recent years, multidimensional item response theory (MIRT) has become a burgeoning topic in psychological and educational measurement. Considered a cutting-edge statistical technique, the methodology underlying MIRT can be complex, and therefore doesn’t receive much attention in introductory IRT courses. However author Wes Bonifay shows how MIRT can be understood and applied by anyone with a firm grounding in unidimensional IRT modeling. His volume includes practical examples and illustrations, along with numerous figures and diagrams. Multidimensional Item Response Theory includes snippets of R code interspersed throughout the text (with the complete R code included on an accompanying website) to guide readers in exploring MIRT models, estimating the model parameters, generating plots, and implementing the various procedures and applications discussed throughout the book.
Author: Gregory Camilli
Publisher: SAGE
ISBN: 9780803944169
Category : Business & Economics
Languages : en
Pages : 196
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Book Description
In this book, the authors provide a cogent review of statistical and interpretive procedures that, in combination, can be used to reduce the likelihood that tests contain items that favor members of one gender, age, racial, or ethnic group over equally able members of another group, for reasons that are unrelated to the objectives and purposes of measurement. Such test items are said to be biased against the equally able members of the group that is not favored. The methods described and illustrated in this book have the potential to reducing the incidence of tests that are, in their construction, biased against members of one or more groups. These methods have the potential of controlling an important source of invalidity when test results are interpreted.
Author: Paul W. Holland
Publisher: Routledge
ISBN: 1136601929
Category : Education
Languages : en
Pages : 449
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Book Description
Test fairness is a moral imperative for both the makers and the users of tests. This book focuses on methods for detecting test items that function differently for different groups of examinees and on using this information to improve tests. Of interest to all testing and measurement specialists, it examines modern techniques used routinely to insure test fairness. Three of these relevant to the book's contents are: * detailed reviews of test items by subject matter experts and members of the major subgroups in society (gender, ethnic, and linguistic) that will be represented in the examinee population * comparisons of the predictive validity of the test done separately for each one of the major subgroups of examinees * extensive statistical analyses of the relative performance of major subgroups of examinees on individual test items.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 54
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Book Description
A multidimensional non-parametric IRT model of test bias is presented, providing an explanation of how individually-biased items can combine through a test score to produce test bias. The claim is thus that bias, though expressed at the item level, should be studied at the test level. The model postulates an intended-to-be-measured target ability and nuisance determinants whose differing ability distributions across examinee group cause bias. Multiple nuisance determinants can produce item bias cancellation, resulting in little or no test bias. Detection of test bias requires a valid subtest, whose items measure only target ability. A long-test viewpoint of bias is also developed.
Author: Wes Bonifay
Publisher: SAGE Publications
ISBN: 1506384269
Category : Education
Languages : en
Pages : 153
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Book Description
Several decades of psychometric research have led to the development of sophisticated models for multidimensional test data, and in recent years, multidimensional item response theory (MIRT) has become a burgeoning topic in psychological and educational measurement. Considered a cutting-edge statistical technique, the methodology underlying MIRT can be complex, and therefore doesn’t receive much attention in introductory IRT courses. However author Wes Bonifay shows how MIRT can be understood and applied by anyone with a firm grounding in unidimensional IRT modeling. His volume includes practical examples and illustrations, along with numerous figures and diagrams. Multidimensional Item Response Theory includes snippets of R code interspersed throughout the text (with the complete R code included on an accompanying website) to guide readers in exploring MIRT models, estimating the model parameters, generating plots, and implementing the various procedures and applications discussed throughout the book.
Author: Insu Paek
Publisher:
ISBN:
Category :
Languages : en
Pages : 434
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Book Description
Author: Robin Shealy
Publisher:
ISBN:
Category : Educational tests and measurements
Languages : en
Pages : 52
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Book Description
