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Park, Youngmin; Warschauer, Mark – Language Learning & Technology, 2016
This experimental study examined how the reading and writing development of sixth-grade L2 students was affected by syntactic enhancement. Visual-syntactic text formatting (VSTF) technology, which visualizes syntactic structures, was used to convert a textbook to the one with syntactic enhancement. The sample (n = 282), which was drawn from a…
Descriptors: Syntax, Second Language Learning, Literacy, English (Second Language)

Phillips, S. E.; Mehrens, William A. – Journal of Educational Measurement, 1987
This study investigates whether a linear factor analytic method commonly used to evaluate violation of the item response theory (IRT) unidimensionality assumption is sensitive to measurable curricular differences within a school district and to examine the possibility of differential item performance for groups of students receiving different…
Descriptors: Achievement Tests, Elementary Education, Elementary School Curriculum, Factor Analysis