ITSs as core or supplementary components of instruction show positive learning gains in individual studies, including ALEKS, Writing Pal, and eDia platform deployments¶

Claim · All claims
Evidence · 1 study (2 entries) · review r3 · q2 · i2–i3
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i3 Twelfth-grade students using the ALEKS platform alongside classroom lessons significantly increased their exam scores (d = 0.87) while the control group showed no significant change. → Létourneau 2025 q2 i2 Students using Writing Pal showed significant essay score gains (d = 0.71) over six months, and students completing most eDia sessions improved by one-third of a standard deviation. → Létourneau 2025 (2)

Evidence¶

Létourneau 2025¶

Létourneau, A., Martineau, M. D., Charland, P., Karran, J. A., Boasen, J. & Léger, P. M. (2025). A systematic review of AI-driven intelligent tutoring systems (ITS) in K-12 education. npj Science of Learning 10:29. https://doi.org/10.1038/s41539-025-00320-7

q2 · i3 · review · r3

Nehring et al.'s quasi-experiment across five schools (100 twelfth-graders) in a 2x2 mixed ANOVA (F(1, 98) = 19.16, η² = 0.16, p < 0.001) found the ALEKS intervention group significantly increased exam scores with "d = 0.87"; the control group's change was not significant.

"students in the intervention group significantly increased their exam scores between October and May (M_diff = 13.55, SE = 1. 7 2 ,p < 0.001, d = 0.87, 95% CI [10.14, 16.96]), whereas the control group exhibited no statistically significant change in mean perfor- mance"

Létourneau 2025 (2)¶

Létourneau, A., Martineau, M. D., Charland, P., Karran, J. A., Boasen, J. & Léger, P. M. (2025). A systematic review of AI-driven intelligent tutoring systems (ITS) in K-12 education. npj Science of Learning 10:29. https://doi.org/10.1038/s41539-025-00320-7

q2 · i2 · review · r3

Roscoe et al.'s no-control study of Writing Pal (113 students, average 16 h over six months) found essay scores "increased significantly ( t(112) = 5.85, p = 0.001, d = 0.71)"; Ökördi et al.'s eDia study similarly reported gains of one-third of a standard deviation for students completing more than half the sessions.

"Both pre-and post-studyessays were graded, and their essay scores increased significantly ( t(112) = 5.85, p = 0.001, d = 0.71)27.T h e authors also noted that positive changes were observed in essay structure and lexical sophistication27."

Discussion¶

Related Claims¶

• In the grade 7 cluster RCT, ITSS produced statistically significant positive effects on all eight comprehension outcomes (average effect size 0.23) — related
• In the grades 4-5 cluster RCT, ITSS produced statistically significant positive effects on all six comprehension outcomes (average effect size 0.24) — related
• AI-driven personalized and adaptive learning pathways support learner engagement and satisfaction in online courses — related
• The introduction reports that the VCR tutor produced statistically significant performance gains in using the VCR, a rare result for ITSs at the time — a narrower finding that bears on this claim
• Teachers across the reviewed studies used varied digital learning platforms, including learning management systems, adaptive platforms, and intelligent tutoring systems — related
• Earlier research on writing-support technology centred on Automated Writing Evaluation, Automated Essay Scoring and rarer Intelligent Tutoring Systems, mainly for US secondary school essay writing — related