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ERIC Number: EJ1103009
Record Type: Journal
Publication Date: 2016
Pages: 20
Abstractor: As Provided
ISSN: ISSN-0022-0655
A Comparison of Linking Methods for Estimating National Trends in International Comparative Large-Scale Assessments in the Presence of Cross-national DIF
Sachse, Karoline A.; Roppelt, Alexander; Haag, Nicole
Journal of Educational Measurement, v53 n2 p152-171 Sum 2016
Trend estimation in international comparative large-scale assessments relies on measurement invariance between countries. However, cross-national differential item functioning (DIF) has been repeatedly documented. We ran a simulation study using national item parameters, which required trends to be computed separately for each country, to compare trend estimation performances to two linking methods employing international item parameters across several conditions. The trend estimates based on the national item parameters were more accurate than the trend estimates based on the international item parameters when cross-national DIF was present. Moreover, the use of fixed common item parameter calibrations led to biased trend estimates. The detection and elimination of DIF can reduce this bias but is also likely to increase the total error.
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Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Secondary Education; Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: National Assessment of Educational Progress; Program for International Student Assessment; Trends in International Mathematics and Science Study
Grant or Contract Numbers: N/A