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von Hippel, Paul T. – Annenberg Institute for School Reform at Brown University, 2021
In an effort to reduce viral transmission, many schools are planning to reduce class size if they have not reduced it already. Yet the effect of class size on transmission is unknown. To determine whether smaller classes reduce school absence, especially when community disease prevalence is high, we merge data from the Project STAR randomized…
Descriptors: COVID-19, Pandemics, Disease Control, Class Size