Claims

No significant differences between conditions on the retention test, and scores of the Visual and Timeline conditions decreased significantly from post-test to retention

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q2
Currency · newest study 2008 · 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.

q2 i? The post-test advantage of the Timeline condition did not endure: retention-test scores did not differ between conditions (F(2, 78) = .43, p = .65). → Maaike E. Prangsma 2008 q2 i? Visual and Timeline conditions showed a significant post-test-to-retention decrease; the Text condition did not (p = .08). → Maaike E. Prangsma 2008 (2)

Evidence

Maaike E. Prangsma 2008

Maaike E. Prangsma, Carla A. M. Van Boxtel, Gellof Kanselaar. (2008). Developing a 'big picture': Effects of collaborative construction of multimodal representations in history. Instructional Science. https://doi.org/10.1007/s11251-007-9026-5

q2 · i? · causal · r2

Retention test administered 33–49 days after the post-test (M = 37) in the same study; the condition effect was non-significant, so the short-term Timeline advantage faded. Equivalence was not tested.

"We did not find significant differences between conditions for the retention test scores, which means there is no difference in long-term effects ( F(2, 78) = .43, p = .65)."

Maaike E. Prangsma 2008 (2)

Maaike E. Prangsma, Carla A. M. Van Boxtel, Gellof Kanselaar. (2008). Developing a 'big picture': Effects of collaborative construction of multimodal representations in history. Instructional Science. https://doi.org/10.1007/s11251-007-9026-5

q2 · i? · causal · r2

Paired-samples t-tests per condition in the same experiment: Visual and Timeline scores dropped significantly after 33–49 days, while the Text condition's drop was not significant at p = .08.

"There was a significant decrease from post-test to retention test for both the Visual (t(31) = 4.34, p = .00 (two-tailed)) and the Timeline condition ( t(21) = 3.23, p = .00 (two-tailed)), but not for the Text condition ( t(29) = 1.79, p = .08 (two-tailed))."

Discussion

Learner Variables

Page metadata
Field Value
type claim
id timeline-effect-disappears-at-retention
title No significant differences between conditions on the retention test, and scores of the Visual and Timeline conditions decreased significantly from post-test to retention
description No significant differences between conditions on the retention test, and scores of the Visual and Timeline conditions decreased significantly from post-test to retention
status review
evidence_strength moderate
newest_evidence 2008
generated by process:wiki-ingest on 2026-10-18
trust unverified — no one has confirmed this page's content
sources 2 — maaike-e-prangsma-2008, maaike-e-prangsma-2008-2

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