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Weaver, Andrew; Kieffer, Michael J. – Grantee Submission, 2022
This study examines differences in English language comprehension, reading fluency, and executive functions among Spanish-English bilinguals with reading difficulties. Reading difficulties examined included general reading difficulties, defined by low word reading and reading comprehension, and specific-reading comprehension difficulties, defined…
Descriptors: Reading Tests, Achievement Tests, Intelligence Tests, Verbal Ability
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Weaver, Andrew; Kieffer, Michael J. – Reading & Writing Quarterly, 2022
This study examines differences in English language comprehension, reading fluency, and executive functions among Spanish-English bilinguals with reading difficulties. Reading difficulties examined included general reading difficulties, defined by low word reading and reading comprehension, and specific-reading comprehension difficulties, defined…
Descriptors: Executive Function, Bilingualism, Spanish, English (Second Language)
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Kieffer, Michael J.; Petscher, Yaacov; Proctor, C. Patrick; Silverman, Rebecca D. – Scientific Studies of Reading, 2016
Language comprehension is crucial to reading. However, theoretical models and recent research raise questions about what constitutes this multifaceted domain. We present two related studies examining the dimensionality of language comprehension and relations to reading comprehension in the upper elementary grades. Studies 1 (Grade 6; N = 148) and…
Descriptors: Elementary School Students, Language Skills, Reading Comprehension, Grade 6
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Kieffer, Michael J.; Lesaux, Nonie K. – Reading and Writing: An Interdisciplinary Journal, 2012
Despite acknowledging the complex nature of vocabulary knowledge, researchers have rarely investigated the dimensionality of this construct empirically. This study was designed to test a multi-dimensional model of English vocabulary knowledge for sixth-grade students from linguistically diverse backgrounds (n = 584). Participants included language…
Descriptors: Vocabulary, Knowledge Level, Minority Groups, English
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Kieffer, Michael J.; Lesaux, Nonie K. – Language Learning, 2012
This study tested three hypotheses about the direct and indirect contributions of derivational morphological awareness to English reading comprehension in sixth-grade students from differing language backgrounds (n= 952). Students included Spanish-speaking, Filipino-speaking, and Vietnamese-speaking language minority learners as well as native…
Descriptors: English (Second Language), Speech Communication, Reading Comprehension, Reading Fluency
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Lesaux, Nonie K.; Kieffer, Michael J.; Faller, S. Elisabeth; Kelley, Joan G. – Reading Research Quarterly, 2010
The present study aims to advance the extant research base by evaluating the implementation and effectiveness of an academic vocabulary program designed for use in mainstream middle school classrooms with high proportions of language minority learners. The quasi-experimental, mixed-methods study was conducted in 21 classes (13 treatment matched to…
Descriptors: Language Minorities, Middle Schools, Vocabulary, Program Effectiveness