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Direct linkBanks, Kathleen; Jeddeeni, Ahmad; Walker, Cindy M. – International Journal of Testing, 2016
Differential bundle functioning (DBF) analyses were conducted to determine whether seventh and eighth grade second language learners (SLLs) had lower probabilities of answering bundles of math word problems correctly that had heavy language demands, when compared to non-SLLs of equal math proficiency. Math word problems on each of four test forms…
Descriptors: Middle School Students, English Language Learners, Second Language Learning, Grade 7
Newman, Denis; Jaciw, Andrew P. – Empirical Education Inc., 2012
The motivation for this paper is the authors' recent work on several randomized control trials in which they found the primary result, which averaged across subgroups or sites, to be moderated by demographic or site characteristics. They are led to examine a distinction that the Institute of Education Sciences (IES) makes between "confirmatory"…
Descriptors: Educational Research, Research Methodology, Research Design, Classification
