Claims

GCL-raising activations did not improve learning outcomes: neither prompted imagination nor disfluency produced a significant task-performance advantage

Claim · All claims
Evidence · 1 study (2 entries) · causal r1–r2 · q2
Currency · newest study 2020 · checked against its sources 2026-10-22 (automated, 2 of 2 entries) · 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? In the clutch study, both groups reached similar performance levels despite the GCL difference. → Melina Klepsch 2020 q2 i? In the time-zones study, task performance did not differ between fluent and disfluent conditions. → Melina Klepsch 2020 (2)

Evidence

Melina Klepsch 2020

Melina Klepsch, Tina Seufert. (2020). Understanding instructional design effects by differentiated measurement of intrinsic, extraneous, and germane cognitive load. Instructional Science (2020) 48:45–77. https://doi.org/10.1007/s11251-020-09502-9

q2 · i? · causal · r1

Post-test performance in the clutch study (N = 31), measured with 14 questions worth at most 39 points, analyzed with prior knowledge and FAM subscales as covariates. No significant main effect of the imagination instruction was found.

"For task performance, we found no main effect (F < 1, n.s.): Both groups reached similar performance levels."

Melina Klepsch 2020 (2)

Melina Klepsch, Tina Seufert. (2020). Understanding instructional design effects by differentiated measurement of intrinsic, extraneous, and germane cognitive load. Instructional Science (2020) 48:45–77. https://doi.org/10.1007/s11251-020-09502-9

q2 · i? · causal · r2

Post-test performance in the time-zones study (N = 36), a 17-question test worth at most 34 points, with prior knowledge as covariate. No significant difference between fluent and disfluent conditions; equivalence was not tested.

"For task performance, we found no main effect (F (1,33) = 1.65, p = 0.21, η2 = 0.05): Both groups reached similar performance levels."

Discussion

Page metadata
Field Value
type claim
id gcl-activation-no-task-performance-effect
title GCL-raising activations did not improve learning outcomes: neither prompted imagination nor disfluency produced a significant task-performance advantage
description GCL-raising activations did not improve learning outcomes: neither prompted imagination nor disfluency produced a significant task-performance advantage
status review
evidence_strength weak
newest_evidence 2020
source_checked 2026-10-22
generated by process:wiki-ingest on 2026-10-18
trust unverified — no one has confirmed this page's content
sources 2 — melina-klepsch-2020, melina-klepsch-2020-2

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