The effect of an instructional intervention on middle school english learners' science and english reading achievement

Abstract

Abstract This study examined the effect of a quasi‐experimental project on fifth grade English learners' achievement in state‐mandated standards‐based science and English reading assessment. A total of 166 treatment students and 80 comparison students from four randomized intermediate schools participated in the current project. The intervention consisted of on‐going professional development and specific instructional science lessons with inquiry‐based learning, direct and explicit vocabulary instruction, integration of reading and writing, and enrichment components including integration of technology, take‐home science activities, and university scientists mentoring. Results suggested a significant and positive intervention effect in favor of the treatment students as reflected in higher performance in district‐wide curriculum‐based tests of science and reading and standardized tests of oral reading fluency. © 2012 Wiley Periodicals, Inc. J Res Sci Teach 49: 987–1011, 2012