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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

Showing all 4 results
Toward Increasing Fairness in Score Scale Calibrations Employed in International Large-Scale Assessments
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Oliveri, Maria Elena; von Davier, Matthias – International Journal of Testing, 2014
In this article, we investigate the creation of comparable score scales across countries in international assessments. We examine potential improvements to current score scale calibration procedures used in international large-scale assessments. Our approach seeks to improve fairness in scoring international large-scale assessments, which often…
Descriptors: Test Bias, Scores, International Programs, Educational Assessment
Analysis of Sources of Latent Class Differential Item Functioning in International Assessments
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Oliveri, Maria Elena; Ercikan, Kadriye; Zumbo, Bruno – International Journal of Testing, 2013
In this study, we investigated differential item functioning (DIF) and its sources using a latent class (LC) modeling approach. Potential sources of LC DIF related to instruction and teacher-related variables were investigated using substantive and three statistical approaches: descriptive discriminant function, multinomial logistic regression,…
Descriptors: Test Bias, Test Items, Multivariate Analysis, Discriminant Analysis
Investigating Sources of Differential Item Functioning in International Large-Scale Assessments Using a Confirmatory Approach
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Sandilands, Debra; Oliveri, Maria Elena; Zumbo, Bruno D.; Ercikan, Kadriye – International Journal of Testing, 2013
International large-scale assessments of achievement often have a large degree of differential item functioning (DIF) between countries, which can threaten score equivalence and reduce the validity of inferences based on comparisons of group performances. It is important to understand potential sources of DIF to improve the validity of future…
Descriptors: Validity, Measures (Individuals), International Studies, Foreign Countries
Methodologies for Investigating Item- and Test-Level Measurement Equivalence in International Large-Scale Assessments
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Oliveri, Maria Elena; Olson, Brent F.; Ercikan, Kadriye; Zumbo, Bruno D. – International Journal of Testing, 2012
In this study, the Canadian English and French versions of the Problem-Solving Measure of the Programme for International Student Assessment 2003 were examined to investigate their degree of measurement comparability at the item- and test-levels. Three methods of differential item functioning (DIF) were compared: parametric and nonparametric item…
Descriptors: Foreign Students, Test Bias, Speech Communication, Effect Size