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January 24, 2025
Key Points Read the PDF. Executive Summary Although national test scores provide clear evidence on student achievement across time, they do not illuminate what is driving gains or losses. Nonetheless, careful examination of test scores can corroborate some explanations for changes in student achievement and discount others. This report examines recent trends in US student…
November 28, 2022
Key Points Read the PDF. Executive Summary We examine how COVID-related reopening policies during the 2020–21 and 2021–22 school years affected enrollment in public school districts. We use difference-in-differences and event study designs to estimate plausibly causal effects of different reopening policies on public school enrollment. Consistent with prior research, we find that public school…
August 10, 2022
Key Points From September 2021 to late February 2022, school district mask mandates were in place for 61 percent of students in the US.During that period, Centers for Disease Control and Prevention (CDC) guidance advised all students and teachers to mask indoors, with no flexibility based on local conditions.On February 25, 2022, the CDC adopted…