Urban Education · 2009 · 106 citations · 21 references
EducationEducational AssessmentMathematicsLanguage ProficiencyMathematics InstructionSecondary Mathematics EducationAcademic Language ProficiencyEnglish Language LearningLanguage Proficiency TestingReadingSecond Language AcquisitionAcademic ProficiencyMathematical Problem Solving AssessmentProblem-solving AbilityProficiency TestingStandardized Test ScoresStudent Language Proficiency
The study focused on the relationship of English proficiency and math performance in a sample of high school students, including 47% English language learners (ELLs). Data sources included state math test scores, study-specific pre- and posttest scores, problem solving in an online math tutorial, and responses to a self-report assessment of mathematics self-concept. English conversational and reading proficiency data were available for the ELLs. Results indicated that math performance for the ELLs increased with English-reading proficiency in a nonlinear manner. ELLs’ English-reading proficiency predicted math test scores, progress in the online math tutorial, and math self-concept.
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PIECEWISE REGRESSION: A TOOL FOR IDENTIFYING ECOLOGICAL THRESHOLDS
Judith D. Toms, Mary Lesperance · Ecology · 2003 · 1K citations