Teacher-supported learning scaffolds show the largest effect (ES = 0.92), and longer intervention durations yield larger effects¶
Claim · All claims
Evidence · 1 study (2 entries) · quant-synthesisr2–r3·q3·i2medium
Currency · newest study 2023 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
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q3 i2 Among learning scaffolds, the teacher-supported scaffold had the largest effect (ES = 0.92, P < 0.01), compared with resource-supported (ES = 0.69) and technique-supported (ES = 0.63). → Xu 2023
q3 i2 Effect sizes tended to increase with longer intervention durations, reaching ES = 0.85 after more than 12 weeks. → Xu 2023 (2)
Evidence¶
Xu 2023¶
Xu, E., Wang, W., & Wang, Q. (2023). The effectiveness of collaborative problem solving in promoting students' critical thinking: A meta-analysis based on empirical literature. Humanities and Social Sciences Communications. https://doi.org/10.1057/s41599-023-01508-1
q3 · i2 · quant-synthesis · r2
Subgroup analysis by learning scaffold (Table 4): teacher-supported (62 effect quantities, ES = 0.92), resource-supported (44, ES = 0.69), technique-supported (49, ES = 0.63); all three scaffold types enhanced critical thinking significantly.
"the teacher-supported learning scaffold (ES = 0.92, P < 0.01) displayed a high level of significant impact. These results show that the learning scaffold with teacher support has the greatest impact on cultivating critical thinking."
Xu 2023 (2)¶
Xu, E., Wang, W., & Wang, Q. (2023). The effectiveness of collaborative problem solving in promoting students' critical thinking: A meta-analysis based on empirical literature. Humanities and Social Sciences Communications. https://doi.org/10.1057/s41599-023-01508-1
q3 · i2 · quant-synthesis · r3
Subgroup analysis by intervention duration (Table 4): 1–4 weeks (4 effect quantities, ES = 0.64, CI crossing zero), 4–12 weeks (13, ES = 0.79), more than 12 weeks (62, ES = 0.85); intergroup difference significant (chi2 = 12.18, P < 0.01).
"The effect sizes related to this variable showed a tendency to increase with longer intervention durations. The improvement in critical thinking reached a significant level (ES = 0.85, P < 0.01) after more than 12 weeks of training."
Discussion¶
Related Claims¶
- Scaffold effects peak at 2–4 weeks of treatment and decrease dramatically for treatments lasting 9–24 weeks — reports the opposite
- Motor skill interventions for DCD improve motor, cognitive, and emotional outcomes, with dose (duration and frequency) influencing treatment effects and interventions of at least 9 weeks tending to be more effective — related
- Programme characteristics — longer duration, higher frequency, teacher delivery and older students — were tentatively associated with more significant well-being effects — related
- Teaching type, intervention duration, subject area, group size, and learning scaffold significantly moderate the effect of collaborative problem-solving on critical thinking — a broader claim this one bears on
- Science-related subject areas (mathematics, science, medical science) show larger effects than programming technology and other fields — related
- Intervention duration significantly moderates Gen-AI's effect on HOT, with the strongest effects at 8–16 weeks (ES = 0.759) and weaker effects for shorter (0.494) and longer (0.372) interventions — reports the opposite
- Interventions longer than one month showed the largest effect size for robot-assisted STEM learning, though duration was not a significant moderator overall — related
- Interventions lasting one to two months show the largest effect, and effects do not increase consistently with longer duration — reports the opposite
- Scaffolding's effect was greatest among adult learners, though based on a single outcome — related
- Scaffolding's effect was highest in project-based learning contexts; design-based learning was the only context not significantly greater than zero — related
- Collaborative problem-solving significantly improves students' critical thinking overall (ES = 0.82) — related
- Individual treatment organization and delivery form significantly moderate scaffold effects; classroom settings and Web-based environments show the largest effects — related
- Scaffolding shows a particularly large pre–post effect among students with learning disabilities (ḡ = 3.13), though this estimate is tentative, and a large effect among ELL students (ḡ = 0.92) — related
- SRL intervention effects are moderated by delivery agent, duration, domain, and student age, with inconsistent duration findings — reports the opposite
- Scaffolding targeting analysis-level skills yields much larger effects (g = 0.537) than scaffolding targeting synthesis or evaluation — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
teacher-scaffolds-and-longer-duration-stronger-cps-effects |
title |
Teacher-supported learning scaffolds show the largest effect (ES = 0.92), and longer intervention durations yield larger effects |
description |
Teacher-supported learning scaffolds show the largest effect (ES = 0.92), and longer intervention durations yield larger effects |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2023 |
generated |
by process:wiki-ingest on 2026-10-16 |
trust |
unverified — no one has confirmed this page's content |
sources |
2 — xu-2023, xu-2023-2 |
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