Small classes give extra boost to low-achieving students

Small classes in early grades improve test scores in later grades for students of all achievement levels, but low achievers get an extra boost. That's the finding of a study on the long-term effects of class size in the November issue of the American Journal of Education.

The study suggests that reducing class size in early grades provides a dual benefit: It raises achievement for all students through middle school, while also closing the persistently large gap between high- and low-achievers, say authors Spyros Konstantopoulos from Michigan State University and Vicki Chung from Northwestern University.