In one meta-regression, the PS-I fidelity benefit tended to shrink for interventions spanning only a few hours, a marginal interaction (p = .055)¶
Claim · All claims
Evidence · 1 study · quant-synthesisr2·q4
Currency · newest study 2021 · checked against its sources 2026-10-18 (automated, 1 of 1 entry) · not reviewed by a person
Subclaims¶
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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? Although effect size increased with overall PF fidelity overall, it decreased for interventions spanning only a few hours, suggesting cramming many design features into short interventions is not optimal. → Tanmay Sinha and Manu Kapur 2021
Evidence¶
Tanmay Sinha and Manu Kapur 2021¶
Tanmay Sinha and Manu Kapur. (2021). When Problem Solving Followed by Instruction Works: Evidence for Productive Failure. Review of Educational Research. https://doi.org/10.3102/00346543211019105
q4 · i? · quant-synthesis · r2
Meta-regression within the meta-analysis modeling the interaction of intervention time span with overall PF fidelity score. The fidelity benefit "was in fact a decrease for interventions spanning a few hours (β = −0.0116, p = .0546, 95% CI [−0.0235, 0.0002])", marginally significant; longer interventions also had higher fidelity scores (mean 74.45 vs 42.01).
"Despite an overall increase in effect size with increase in overall PF fidelity (β = 0.0173, p = .0005, 95% CI [0.0077, 0.0269]), there was in fact a decrease for interventions spanning a few hours (β = −0.0116, p = .0546, 95% CI [−0.0235, 0.0002])."
Discussion¶
Related Claims¶
- Productive Failure Improves Conceptual Learning — the general claim this finding bears on, with the studies behind it
- PF design fidelity predicts larger PS-I effects, with four fidelity criteria showing significant subgroup differences — related
- Expertise reversal: cognitive load effects for novices decrease, disappear, and can reverse as expertise increases — related
- Segmentation Benefits Shrink With Expertise — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
psi-fidelity-time-span-interaction |
title |
In one meta-regression, the PS-I fidelity benefit tended to shrink for interventions spanning only a few hours, a marginal interaction (p = .055) |
description |
In one meta-regression, the PS-I fidelity benefit tended to shrink for interventions spanning only a few hours, a marginal interaction (p = .055) |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2021 |
source_checked |
2026-10-18 |
generated |
by process:wiki-ingest on 2026-10-13 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — tanmay-sinha-and-manu-kapur-2021 |
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