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Sebro, Negusse Yohannes; Goshu, Ayele Taye – Journal of Education and Learning, 2017
This study aims to explore Bayesian multilevel modeling to investigate variations of average academic achievement of grade eight school students. A sample of 636 students is randomly selected from 26 private and government schools by a two-stage stratified sampling design. Bayesian method is used to estimate the fixed and random effects. Input and…
Descriptors: Foreign Countries, Hierarchical Linear Modeling, Academic Achievement, Secondary School Students
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McGregor, Karla K.; Oleson, Jacob; Bahnsen, Alison; Duff, Dawna – International Journal of Language & Communication Disorders, 2013
Background: Deficient vocabulary is a frequently reported symptom of developmental language impairment, but the nature of the deficit and its developmental course are not well documented. Aims: To describe the nature of the deficit in terms of breadth and depth of vocabulary knowledge and to determine whether the nature and the extent of the…
Descriptors: Language Impairments, Vocabulary, Grade 2, Grade 4
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Ardasheva, Yuliya; Tretter, Thomas R. – TESOL Quarterly: A Journal for Teachers of English to Speakers of Other Languages and of Standard English as a Second Dialect, 2013
This nonexperimental study explored the relationships among individual differences, contextual variables, and reading achievement of English language learners (ELLs) in one large urban school district in the United States. The sample comprised 840 students in Grades 3-8 and 10 nested within 37 schools. Hierarchical linear modeling results indicate…
Descriptors: Individual Differences, English Language Learners, Urban Schools, Language Proficiency