The Effect of Teacher’s Aides in the Classroom: Evidence from a Randomized Trial

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IZA Seminar

Place: Schaumburg-Lippe-Str. 9, 53113 Bonn

Date: 08.12.2015, 12:15 - 13:30


Presentation by 

Helena Skyt Nielsen (Aarhus University)


This paper evaluates the impact of two kinds of teacher’s aides on 13-year-old students’ test scores, behavior and wellbeing. We gain leverage from combining a randomized experiment with rich survey and registry data from Denmark. The intervention reduces student-to-teacher ratios by 27-34%, but it is a much more flexible instrument than class-size reduction. We find substantial positive effects on reading scores, which tend to be greater when resources are spent on teaching assistants without teaching degrees who—at a fixed budget—can spend more time in class in comparison to co-teachers with teaching degrees.

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