Claims

Interventions lasting one to two months show the largest effect, and effects do not increase consistently with longer duration

Claim · All claims
Evidence · 1 study (2 entries) · quant-synthesis r3 · q4 · i1–i3
Currency · newest study 2026 · checked against its sources 2026-10-20 (automated, 2 of 2 entries) · not reviewed by a person

Subclaims

Reading the evidence codes

q is the design tier, i the impact, n the sample, and the kind with its r the rigour judged within that kind: what each code means.

This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.

q4 i3 The highest effect size by intervention duration occurred for interventions lasting more than 1 month and up to 2 months (g = 0.833). → Doğan Yunus 2026 q4 i1 Interventions lasting more than 1 and up to 7 days showed a weaker effect that was not statistically significant (g = 0.256, p = 0.070), and no consistent pattern of increasing effectiveness with longer durations was found. → Doğan Yunus 2026 (2)

Evidence

Doğan Yunus 2026

Doğan Yunus, Kılıç Zeynep, Kalınkara Yusuf, Talan Tarık. (2026). The Impact of Artificial Intelligence-Supported Instruction on Student Learning in STEM: A Systematic Review and Meta-Analysis. Journal of Intelligence. https://doi.org/10.3390/jintelligence14060109

q4 · i3 · quant-synthesis · r3

Duration moderator analysis across the 35 studies (between-group Q = 16.95, df = 5, p = 0.004). Interventions of more than 1 up to 2 months yielded the largest pooled effect, g = 0.833, 95% CI [0.67, 0.99].

"Regarding intervention duration, the highest effect size was observed in interventions lasting more than 1 month and up to 2 months (g = 0.833, 95% CI [0.67, 0.99], Z = 10.30, p < 0.001)."

Doğan Yunus 2026 (2)

Doğan Yunus, Kılıç Zeynep, Kalınkara Yusuf, Talan Tarık. (2026). The Impact of Artificial Intelligence-Supported Instruction on Student Learning in STEM: A Systematic Review and Meta-Analysis. Journal of Intelligence. https://doi.org/10.3390/jintelligence14060109

q4 · i1 · quant-synthesis · r3

In the same duration moderator analysis, the 1–7 day group showed a small, non-significant pooled effect (g = 0.256, p = 0.070); equivalence was not tested. Short-term interventions of ≤5 h were significant (g = 0.621, p = 0.003).

"However, for interventions lasting more than 1 and up to 7 days, the effect was weaker and not statistically significant (g = 0.256, p = 0.070)."

Discussion

Page metadata
Field Value
type claim
id ai-effect-duration-one-to-two-months-peak
title Interventions lasting one to two months show the largest effect, and effects do not increase consistently with longer duration
description Interventions lasting one to two months show the largest effect, and effects do not increase consistently with longer duration
status review
evidence_strength mixed
newest_evidence 2026
source_checked 2026-10-20
generated by process:wiki-ingest on 2026-10-12
trust unverified — no one has confirmed this page's content
sources 2 — doğan-yunus-2026, doğan-yunus-2026-2

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