New Data Show COVID School Closures Contributed to Largest Learning Loss in Decades

Last week, the National Center for Education Statistics (NCES) released new data showing a dramatic decline in test scores among American 9-year-olds since the start of the COVID-19 pandemic. The data indicate a devastating learning loss among American schoolchildren, marking the largest decline in reading scores since 1990, and the first ever recorded drop in mathematics scores.

These results come from a special administration of the National Assessment of Educational Progress long-term trend (LTT) assessments, which measured reading and mathematics outcomes among 9-year-olds. Since its inception, the LTT has tracked a steady rise in educational performance among 9-year-olds. However, from 2020 to 2022, the LTT revealed a steep drop in 9-year-old students' performance. Reading scores dropped by five points over the two-year period, while mathematics scores dropped by seven points. In all, the decline in test scores represents the reversal of around two decades of improvement in math and reading scores.