Why One-on-One Tutoring Outperforms Two-on-One
A new study by Stanford researchers Hsiaolin Hsieh, David Gormley, Carly D. Robinson, and Susanna Loeb suggests why one-on-one tutoring has been found to produce double the gains in student learning than two-on-one tutoring.
Analyzing 16,629 transcripts from 2022-23 school year tutoring sessions from an earlier study that established the greater gains under one-on-one tutoring, the researchers examined how tutors allocated their time and attention across both one-on-one and two-on-one formats. The tutoring sessions focused on early literacy and served kindergarten through second grade students, with 510 students receiving one-on-one tutoring and 570 students receiving two-on-one tutoring. All students met with their tutor online for 20 minutes during the school day, four times per week.