Claims

ITS produce significant positive effects at all grade levels and in almost all subject domains evaluated, with exceptions such as chemistry

Claim · All claims
Evidence · 1 study (2 entries) · quant-synthesis r2–r3 · q4 · i0 negligible
Currency · newest study 2014 · not yet checked against its sources · 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 i? The use of ITS produced moderate, statistically significant mean effect sizes at all grade levels under both fixed and random-effects models. → Wenting Ma 2014 q4 i0 Significant positive effects appeared in most subject domains, but for chemistry as well as literacy and language learning the mean effect sizes were small (g = .16) and moderate (g = .34), with chemistry not significant under random effects. → Wenting Ma 2014 (2)

Evidence

Wenting Ma 2014

Wenting Ma, Olusola O. Adesope, John C. Nesbit, and Qing Liu. (2014). Intelligent Tutoring Systems and Learning Outcomes: A Meta-Analysis. Journal of Educational Psychology. https://doi.org/10.1037/a0037123

q4 · i? · quant-synthesis · r3

Grade-level moderator analysis (Table 3) covering elementary, middle school, high school, postsecondary, and mixed-grade studies; the between-levels difference was not statistically significant under a random-effects model (QB p = .82).

"T h e u s e o f IT S p r o d u c e d m o d e ra te s ta tis tic a lly s ig n if ic a n t m e a n e ff e c t siz e s a t a ll g r a d e le v e ls u n d e r b o th th e f ix e d a n d r a n d o m - e f f e c t s m o d e ls ."

Wenting Ma 2014 (2)

Wenting Ma, Olusola O. Adesope, John C. Nesbit, and Qing Liu. (2014). Intelligent Tutoring Systems and Learning Outcomes: A Meta-Analysis. Journal of Educational Psychology. https://doi.org/10.1037/a0037123

q4 · i0 · quant-synthesis · r2

Subject-domain moderator analysis (Table 3) with heterogeneity QB = 50.67, p < .001 under the fixed-effect model. Chemistry (g = .16) and language and literacy (g = .34) were the weaker domains; humanities and social science (g = .63) and biology and physiology (g = .59) showed the largest random-effects means.

"For chem istry a s well as literacy and language learning, the use of ITS prod uced sm all and m oderate m ean effect sizes (g = .16 and g = .34, re spectively)."

Discussion

Page metadata
Field Value
type claim
id its-effects-across-grades-subjects-prior-knowledge
title ITS produce significant positive effects at all grade levels and in almost all subject domains evaluated, with exceptions such as chemistry
description ITS produce significant positive effects at all grade levels and in almost all subject domains evaluated, with exceptions such as chemistry
status review
evidence_strength mixed
newest_evidence 2014
generated by process:wiki-ingest on 2026-10-13
trust unverified — no one has confirmed this page's content
sources 2 — wenting-ma-2014, wenting-ma-2014-2

Frontmatter is the page's machine-readable record — see the Schema & Guide.