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Visible Learning™
Visible Learning MetaX
Version 1.4 – Updated February 2026

Peer tutoring on Tutor

Overview

  • Influence: Peer tutoring on Tutor
  • Domain: Student Learning Strategies
  • Sub-Domain: Student perspectives in learning
  • Potential to Accelerate Student Achievement: Potential to accelerate
  • Influence Definition: The effect of peer tutor on the student doing the tutoring.

Evidence

  • Number of meta-analyses: 4
  • Number of studies: 129
  • Number of students: NA
  • Number of effects: 116
  • Weighted mean effect size: 0.43
  • Robustness index: 2

Meta-Analyses

Meta-Analyses
Journal Title Author Article Name Year Published Variable Number of Studies Number of Students Number of Effects Effect Size
Dissertation Hartley Meta-analysis of the effects of individually paced instruction in mathematics 1977 Effects on tutors in math 29 NA 18 0.58
The Journal of Special Education Cook, Scruggs, Mastropieri & Casto Handicapped Students as Tutors 1985 Handicapped as tutors 19 NA 49 0.53
American Educational Research Journal Cohen, Kulik, & Kulik Educational Outcomes of Tutoring: A Meta-analysis of Findings 1982 Effects on tutors 65 NA 33 0.33
School Psychology International Leung An updated meta-analysis on the effect of peer tutoring on tutors' achievement. 2019 Peer tutors on tutor's achievement 16 NA 16 0.43
TOTAL/AVERAGE 129 NA 116 0.47
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