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Babcock, Philip; Betts, Julian R. – National Bureau of Economic Research, 2009
Do smaller classes boost achievement mainly by helping teachers impart specific academic skills to students with low academic achievement? Or do they do so primarily by helping teachers engage poorly behaving students? The analysis uses the grade 3 to 4 transition in San Diego Unified School District as a source of exogenous variation in class…
Descriptors: Relationship, Class Size, Academic Achievement, Grade 1