High-dosage tutoring is uniquely effective in helping students learn, including when implemented at scale. A recent analysis by University of Virginia researcher Beth Schueler, along with Brown University’s Matthew A. Kraft and Grace T. Falken, analyzed 282 randomized control trials and found that large-scale tutoring programs yield months of additional student learning per year, though effectiveness diminished as programs scale beyond 1,000 students. Yet even large-scale tutoring results were stronger than educational interventions like summer school, class size reduction, and extended school days. Additionally, recent studies of individual tutoring programs continue to find strong positive effects on students, even in challenging learning conditions.