Proficiency-based or competency-based approaches to education are undergoing a resurgence in both K-12 and higher education settings, spurred in part by advances in digital learning technologies. These approaches allow students to progress at their own pace through a diverse range of personalized learning experiences aligned to students'…

Because digital tutoring is rapidly expanding, more rigorous, independent evaluations of their effectiveness is critical to inform federal, state, and local policy decisions that influence their role and application of technology in educating underserved students. The in-depth observations and vignettes in this paper illustrate the challenges in…