Research Priorities

A new Stanford University report examines the first year of D.C.'s multimillion-dollar effort to get students back on track.

D.C. students who got frequent, small group tutoring improved their reading and math scores after the return to inperson classes, attended more classes and had a stronger sense of belonging at school, according to new research into the city's multimillion-dollar tutoring program.

The findings from Stanford University are encouraging, researchers said: Although students have yet to fully recover from the pandemic-induced slump that saw test scores plummet and absenteeism rise, children in D.C. are making progress.

Notably, research by Susanna Loeb (Stanford University) revealed that tutoring methods and strategies can vary dramatically both in their design features and student outcomes. Loeb’s team of researchers discovered that in particular “high impact” tutoring strategies have demonstrated statistically significant effects on student learning in math and reading. High impact tutoring contains the following features:

• One-on-one tutoring (or with very small groups)
• Tutoring content is aligned with in-class instruction
• Students receive tutoring at least three times per week from the same tutor
• Tutors are professionally trained 

Another study of more than 2,000 elementary school children in Texas tested the difference between one-to-one and two-to-one online tutoring during the 2022-23 school year. These were young, low-income children, in kindergarten through 2nd grade, who were just learning to read. Children who were randomly assigned to get one-to-one tutoring four times a week posted small gains on one test, but not on another, compared to students in a comparison group who didn’t get tutoring. First graders assigned to one-to-one tutoring gained the equivalent of 30 additional days of school. By contrast, children who had been tutored in pairs were statistically no different in reading than the comparison group of untutored children. A draft paper about this study, led by researchers from Stanford University, was posted to the Annenberg website in May 2024. 

Mays pointed to the move to focus federal pandemic relief money on tutoring programs whose design showed evidence of effectiveness, such as individual or very small groups, and using an aligned curriculum in sessions at least three times a week. This model differed from tutoring provided under the No Child Left Behind Act’s supplemental education services, which were repeatedly found to have no benefit for student achievement—in part because programs varied significantly from district to district.

As excitement grows around tutoring as a strategy to combat learning loss, advocates have rightly been encouraged by the growing body of evidence demonstrating the efficacy of tutoring interventions. To date, however, little research has examined the impact of fully virtual tutoring on very young students. Hardly a technicality, this distinction matters because younger children are less likely to have the technical and self-regulation skills upon which virtual learning depends. Now, a new study by researchers from Stanford, Vanderbilt, and UnboundED analyzes the benefits of virtual tutoring specifically for early elementary students.