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Steele, Jennifer L.; Slater, Robert O.; Zamarro, Gema; Miller, Trey; Li, Jennifer; Burkhauser, Susan; Bacon, Michael – American Educational Research Journal, 2017
Using data from seven cohorts of language immersion lottery applicants in a large, urban school district, we estimate the causal effects of immersion programs on students' test scores in reading, mathematics, and science and on English learners' (EL) reclassification. We estimate positive intent-to-treat (ITT) effects on reading performance in…
Descriptors: Immersion Programs, Reading Achievement, Mathematics Achievement, Science Achievement
Steele, Jennifer L.; Slater, Robert O.; Zamarro, Gema; Miller, Trey; Li, Jennifer; Burkhauser, Susan; Bacon, Michael – Grantee Submission, 2017
Using data from seven cohorts of language immersion lottery applicants in a large, urban school district, we estimate the causal effects of immersion programs on students' test scores in reading, mathematics, and science, and on English learners' (EL) reclassification. We estimate positive intent-to-treat (ITT) effects on reading performance in…
Descriptors: Immersion Programs, Reading Achievement, Mathematics Achievement, Science Achievement
Kieffer, Michael J.; Lesaux, Nonie K. – Elementary School Journal, 2012
One dimension of language proficiency considered important for reading and writing academic texts is morphological awareness--the understanding of how complex words are formed from meaningful smaller units (i.e., affixes, roots) that contribute to words' meanings and functions. This quasi-experimental study evaluated the effects of instruction on…
Descriptors: Language Minorities, Middle Schools, Grade 6, English (Second Language)