In grade 2, 1-1 with coaching shows the largest effect (LATE = 0.8 SD) and 1-group is also significant, while 1-group with coaching is insignificant¶

Claim · All claims
Evidence · 1 study · causal r3 · q3 · i3 large
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i3 In grade 2, 1-1 with coaching has a large significant effect (LATE = 0.8 SD) and 1-group a significant effect (LATE = 0.52 SD), while 1-group with coaching has a smaller insignificant effect. → Rosholm 2025

Evidence¶

Rosholm 2025¶

Rosholm, M., Tonnesen, P. B., Rasmussen, K., Overgaard, S., Færch, J. V., Malm, S. G. & Harder, J. (2025). A tailored small group instruction intervention in mathematics benefits low achievers. npj Science of Learning 10, 18. https://doi.org/10.1038/s41539-025-00310-9

q3 · i3 · causal · r3

Grade-2 arm of the two-stage randomized trial, effects reported per intervention arm on the post-test. The printed effect size LATE = 0.8 SD for 1-1 with coaching and LATE = 0.52 SD for 1-group; 1-group with coaching was insignificant.

"1-1w i t hc o a c h i n gis the most effective intervention with a large significantly positive effect (LATE = 0.8 SD), 1-group also has a significant positive effect (LATE = 0.52 SD)"

Discussion¶

Related Claims¶

• Pairing coaching with group trainings is associated with larger effects on instruction and achievement; instructional materials with larger, and video libraries with smaller, effects on instruction — related
• In grade 8, 1-group with coaching is the most effective arm (LATE = 0.57 SD) while the other arms show small insignificant effects — related
• Tailored small-group mathematics instruction significantly improves math outcomes for low achievers in grades 2 and 8 — related