The Dosage Dilemma: Implementation Evidence on the Barriers to High-Dosage Tutoring

Although substantial evidence supports tutoring’s efficacy, student participation rates in tutoring programs rarely reach desired levels. Our mixed-methods study examines implementation challenges across three in-school tutoring delivery models: live in person, live virtual, and artificial intelligence (AI) virtual. Drawing on student-level dosage data and qualitative evidence, we find that dosage rates across implementations were quite low. All programs faced challenges with scheduling and tutor quality. The in-person model suffered inadequate tutor/teacher communications and the difficulty of limiting tutoring to targeted students, and both virtual models faced persistent challenges with technology. Additionally, the AI-based model was hindered by the absence of meaningful adult/student relationships. We conclude that the implementation barriers we identify are addressable, putting high-dosage tutoring within reach.