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Dif


Dif
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A Comparison Of Six Dif Detection Methods


A Comparison Of Six Dif Detection Methods
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Author : Xueying Gao
language : en
Publisher:
Release Date : 2019

A Comparison Of Six Dif Detection Methods written by Xueying Gao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Electronic dissertations categories.


In the context of educational measurement, a test item is identified as differentially functioning across groups when the probability an examinee's response to it depends on group membership. Methods for detecting uniform and nonuniform DIF have been studied and examined over decades to improve the validity of tests. The current study focused on examining and comparing the effectiveness of six DIF detection methods: the Mantel-Haenszel (MH) procedure, the Logistic Regression procedure, the multiple indicators multiple causes (MIMIC) model, the item response theory likelihood-ratio test (IRT-LR), Lord's IRT-based Wald test and a Randomization Test based on a R-square change statistic. A simulation study was conducted in which the factors manipulated were the percentage of DIF items (%DIF), sample size (number of examinees in each group), test length (number of items in test), type and magnitude of DIF, and the mean ability difference between groups of examinees. The results showed that the MIMIC model had the greatest power in detecting uniform DIF items, as well as nonuniform DIF items with longer tests. The logistic regression method and the randomization test are quite efficient in detecting uniform DIF items, but the randomization test only applies when the two groups of people have the same mean ability. The IRT methods are more useful for detecting nonuniform DIF items. The percentage of DIF items does not have much effect on the power of each method, while most methods are better when detecting large magnitude DIF than small, and are better when the sample size for each group is large.



Factors Affecting Dif


Factors Affecting Dif
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Author : Michal Gradshtein
language : en
Publisher:
Release Date : 2009

Factors Affecting Dif written by Michal Gradshtein and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.




Using The Multivariate Multilevel Logistic Regression Model To Detect Dif


Using The Multivariate Multilevel Logistic Regression Model To Detect Dif
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Author : Tianshu Pan
language : en
Publisher:
Release Date : 2008

Using The Multivariate Multilevel Logistic Regression Model To Detect Dif written by Tianshu Pan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Educational tests and measurements categories.




Nuttall S Standard Dictionary Of The English Language


Nuttall S Standard Dictionary Of The English Language
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Author : P. Austin Nuttall
language : en
Publisher:
Release Date : 1914

Nuttall S Standard Dictionary Of The English Language written by P. Austin Nuttall and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1914 with English language categories.




A Dictionary Of The English Language


A Dictionary Of The English Language
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Author : Noah Webster
language : en
Publisher:
Release Date : 1892

A Dictionary Of The English Language written by Noah Webster and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1892 with categories.




Dif Detection And Description


Dif Detection And Description
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Author : Neil J. Dorans
language : en
Publisher:
Release Date : 1992

Dif Detection And Description written by Neil J. Dorans and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Educational tests and measurements categories.




Library Of Universal Knowledge


Library Of Universal Knowledge
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Author :
language : en
Publisher:
Release Date : 1880

Library Of Universal Knowledge written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1880 with Encyclopedias and dictionaries categories.




Individual Dif Returns Order


Individual Dif Returns Order
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Author :
language : en
Publisher:
Release Date : 1988

Individual Dif Returns Order written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.




Discrete Instantaneous Frequency Dif Estimation


Discrete Instantaneous Frequency Dif Estimation
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Author : Soon Wah Lum
language : en
Publisher:
Release Date : 1996

Discrete Instantaneous Frequency Dif Estimation written by Soon Wah Lum and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.




Computerized Adaptive Testing


Computerized Adaptive Testing
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Author : Howard Wainer
language : en
Publisher: Routledge
Release Date : 2000-04-01

Computerized Adaptive Testing written by Howard Wainer and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-04-01 with Education categories.


This celebrated primer presents an introduction to all of the key ingredients in understanding computerized adaptive testing technology, test development, statistics, and mental test theory. Based on years of research, this accessible book educates the novice and serves as a compendium of state-of-the-art information for professionals interested in computerized testing in the areas of education, psychology, and other related social sciences. A hypothetical test taken as a prelude to employment is used as a common example throughout to highlight this book's most important features and problems. Changes in the new edition include: *a completely rewritten chapter 2 on the system considerations needed for modern computerized adaptive testing; *a revised chapter 4 to include the latest in methodology surrounding online calibration and in the modeling of testlets; and *a new chapter 10 with helpful information on how test items are really selected, usage patterns, how usage patterns influence the number of new items required, and tools for managing item pools.