The research summarized in this paper examines the effects of the COVID-19 pandemic on student performance on the ACT[TM] test. The author compares scores during the three years preceding the pandemic (2018, 2019, and early 2020) to scores in 2021 and 2022 while accounting for changes in the tested population across years. For students tested in 2022, the author also examines differences in mode of learning across demographic groups.