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Comparing Performance of Different Equating Methods in Presence and Absence of DIF Items in Anchor Test
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Gübes, Nese; Uyar, Seyma – International Journal of Progressive Education, 2020
This study aims to compare the performance of different small sample equating methods in the presence and absence of differential item functioning (DIF) in common items. In this research, Tucker linear equating, Levine linear equating, unsmoothed and pre-smoothed (C=4) chained equipercentile equating, and simplified circle arc equating methods…
Descriptors: Test Bias, Equated Scores, Test Items, Methods
A Comparison of Kernel Equating Methods Based on Neat Design
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Akin Arikan, Cigdem – Eurasian Journal of Educational Research, 2019
Problem Statement: Equating can be defined as a statistical process that allows modifying the differences between test forms with similar content and difficulty so that the scores obtained from these forms can be used interchangeably. In the literature, there are many equating methods, one of which is Kernel equating. Trends in International…
Descriptors: Equated Scores, Foreign Countries, Achievement Tests, International Assessment
Linking TIMSS and NAEP Assessments to Evaluate International Trends in Achievement
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Lim, Hwanggyu; Sireci, Stephen G. – Education Policy Analysis Archives, 2017
The Trends in International Mathematics and Science Study (TIMSS) makes it possible to compare the performance of students in the US in Mathematics and Science to the performance of students in other countries. TIMSS uses four international benchmarks for describing student achievement: Low, Intermediate, High, and Advanced. In this study, we…
Descriptors: Achievement Tests, Mathematics Achievement, Mathematics Tests, International Assessment
Equating TIMSS Mathematics Subtests with Nonlinear Equating Methods Using NEAT Design: Circle-Arc Equating Approaches
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Ozdemir, Burhanettin – International Journal of Progressive Education, 2017
The purpose of this study is to equate Trends in International Mathematics and Science Study (TIMSS) mathematics subtest scores obtained from TIMSS 2011 to scores obtained from TIMSS 2007 form with different nonlinear observed score equating methods under Non-Equivalent Anchor Test (NEAT) design where common items are used to link two or more test…
Descriptors: Achievement Tests, Elementary Secondary Education, Foreign Countries, International Assessment
The Impact of Test Dimensionality, Common-Item Set Format, and Scale Linking Methods on Mixed-Format Test Equating
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Öztürk-Gübes, Nese; Kelecioglu, Hülya – Educational Sciences: Theory and Practice, 2016
The purpose of this study was to examine the impact of dimensionality, common-item set format, and different scale linking methods on preserving equity property with mixed-format test equating. Item response theory (IRT) true-score equating (TSE) and IRT observed-score equating (OSE) methods were used under common-item nonequivalent groups design.…
Descriptors: Test Format, Item Response Theory, True Scores, Equated Scores
Confusion in the Ranks: How Good Are England's Schools?
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Smithers, Alan – Sutton Trust, 2013
Understanding how well English education performs compared with other countries is a valuable exercise, particularly because the information can help England and other countries learn from successful systems. The most recent international league tables of pupil performance differ considerably. England languishes well down the list in PISA 2009,…
Descriptors: Foreign Countries, School Effectiveness, National Competency Tests, Classification