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Kieffer, Michael J. – Journal of Learning Disabilities, 2014
This study investigated the role of morphological awareness weaknesses in the reading difficulties encountered by Spanish-speaking language minority learners and their native English-speaking peers in sixth grade. One hundred and thirty-eight students (82 language minority learners; 56 native English speakers) were assessed on English measures of…
Descriptors: Reading Difficulties, Morphology (Languages), Metalinguistics, Reading Comprehension
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
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
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)