WritingTutor with high learner control was rated easier to use than static tutoring (TG1 vs CG), but not after Bonferroni correction.¶
Claim · All claims
Evidence · 1 study · causalr2·q3·i2medium
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person
Design limits · Wambsganss 2025: the intervention came bundled with another change (read from the study by two models, 2026-10-28)
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.
q3 i2 TG1 rated ease-of-use significantly higher than CG (d = 0.61), though not after Bonferroni correction. → Wambsganss 2025
Evidence¶
Wambsganss 2025¶
Wambsganss, T., Benke, I., Maedche, A., Koedinger, K., & Käser, T. (2025). Evaluating the Impact of Learner Control and Interactivity in Conversational Tutoring Systems for Persuasive Writing. International Journal of Artificial Intelligence in Education. https://doi.org/10.1007/s40593-024-00409-x
q3 · i2 · causal · r2
Laboratory experiment with 96 students randomized to TG1 (n=32) or CG (n=32). Welch's t-test on ease-of-use: "mean value of 5.552 (SD = 1.272)" vs "mean = 4.833, SD = 1.071, p = 0.017*", d = 0.61.
"The perceived ease-of-use of WritingTutor was rated with a mean value of 5.552 (SD = 1.272). The value is significantly higher than the results of the alternative static tutoring approach (mean = 4.833, SD = 1.071, p = 0.017*) according to a two-tailed Welch's t-test."
Discussion¶
Related Claims¶
- TG1 rated learning enjoyment higher than CG (d = 0.49), not significant after Bonferroni correction. — related
- High vs low learner control (TG1 vs TG2) showed no significant differences after pair-wise comparison. — related
- No significant difference in essay-assessment learning gains between TG1 and CG. — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
cts-high-learner-control-ease-of-use-tg1-cg |
title |
WritingTutor with high learner control was rated easier to use than static tutoring (TG1 vs CG), but not after Bonferroni correction. |
description |
WritingTutor with high learner control was rated easier to use than static tutoring (TG1 vs CG), but not after Bonferroni correction. |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2025 |
generated |
by process:wiki-ingest on 2026-10-28 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — wambsganss-2025 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.