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English Language Learners and Academic Achievement: Revisiting the Threshold Hypothesis
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Ardasheva, Yuliya; Tretter, Thomas R.; Kinny, Marti – Language Learning, 2012
This nonexperimental study explored the predictive strength of English proficiency levels on academic achievement of middle school students in a sample of 17,470 native English-speaking (NES) students, 558 English language learners (current ELLs), and 500 redesignated fluent English proficient students (former ELLs). Results of multilevel analyses…
Descriptors: Academic Achievement, Second Language Learning, Effect Size, English (Second Language)