Air Tutors is an online tutoring organization that provides one-on-one and small group tutoring for K-12 students. Air Tutors uses live, online tutoring and an online platform that incorporates video conferencing and interactive whiteboards; recruits high-quality paid tutors with tutoring experience and engaging online personalities; and engages…

The Kauffman School is a public, tuition-free charter school serving Kansas City students. In the 2019-20 school year, the school enrolled 1,186 students in grades 5 through 12. Most (88 percent) of the students were low income, and 89 percent were Black or Hispanic. To measure the impact of the Kauffman School on its students, the authors…