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Writer's pictureRebecca Beard

The Science Behind Tutoring: What Research Reveals About Its Impact

Recent research provides compelling evidence that one-on-one tutoring is one of the most effective educational interventions available. Let's examine what the data tells us about tutoring's impact on student success.



Academic Achievement Gains

Test Score Improvements

  • Students receiving regular tutoring show an average improvement of 0.66 standard deviations in their test scores - equivalent to moving a student from the 50th percentile to the 74th percentile (Nickow et al., 2020)¹

  • High-dosage tutoring (3+ sessions per week) can double or triple the amount of math learning students achieve in a single school year (Guryan et al., 2021)²

Grade-Level Advancement

  • Elementary students who received tutoring gained an average of 4-6 additional months of learning compared to their peers (J-PAL, 2020)³

  • High school students with tutoring support are 37% more likely to pass their core classes (Kraft & Falken, 2021)⁴


Long-Term Benefits

College Readiness

  • Students who received sustained tutoring showed (Fryer & Howard-Noveck, 2020)⁵:

    • 12% higher college enrollment rates

    • 20% increase in four-year college attendance

    • Average SAT score improvements of 100+ points

Academic Confidence

Research by Dietrichson et al. (2021)⁶ found:

  • 85% of tutored students report increased confidence in class participation

  • 78% show improved homework completion rates

  • 90% demonstrate better study habits and organizational skills


Why Tutoring Works: The Research-Backed Factors


Personalized Attention

Research from Harvard's Center for Education Policy Research (Schueler & Rodriguez-Segura, 2022)⁷ identifies three key mechanisms:

  • Customized pacing for individual learning speeds

  • Immediate feedback and correction of misconceptions

  • Targeted practice in specific areas of difficulty


Works Cited

  1. Nickow, A., Oreopoulos, P., & Quan, V. (2020). "The Impressive Effects of Tutoring on PreK-12 Learning: A Systematic Review and Meta-Analysis of the Experimental Evidence." NBER Working Paper No. 27476.

  2. Guryan, J., Ludwig, J., Bhatt, M. P., Cook, P. J., Davis, J. M., Dodge, K., Farkas, G., Fryer Jr, R. G., Mayer, S., Pollack, H., & Steinberg, L. (2021). "Not Too Late: Improving Academic Outcomes Among Adolescents." The Quarterly Journal of Economics, 136(4), 2158-2222.

  3. Abdul Latif Jameel Poverty Action Lab (J-PAL). (2020). "The Transformative Potential of Tutoring for PreK-12 Learning Outcomes: Lessons from Randomized Evaluations." J-PAL Evidence Review.

  4. Kraft, M. A., & Falken, G. (2021). "A Blueprint for Scaling Tutoring Across Public Schools." NBER Working Paper No. 28514.

  5. Fryer, R. G., & Howard-Noveck, M. (2020). "High-Dosage Tutoring and Reading Achievement: Evidence from New York City." Journal of Labor Economics, 38(2), 421-452.

  6. Dietrichson, J., Bøg, M., Filges, T., & Klint Jørgensen, A. M. (2021). "Academic Interventions for Elementary and Middle School Students With Low Socioeconomic Status." Review of Educational Research, 91(4), 577-617.

  7. Schueler, B. E., & Rodriguez-Segura, D. (2022). "A Multi-Site Randomized Controlled Trial of High-Dosage Tutoring." EdWorkingPaper No. 22-549.

  8. Robinson, C. D., Kraft, M. A., Loeb, S., & Schueler, B. E. (2021). "Accelerating Student Learning with High-Dosage Tutoring." EdResearch for Recovery Design Principles Series.

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