Claims

The efficiency advantage of prior collaborative experience emerges under high information density but not under low information density

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3 · i1–i2
Currency · newest study 2019 · 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.

q3 i1 In the short-term retention test, experienced groups were more efficient than inexperienced groups for high information density tasks (η²p = .03) but not for low information density tasks. → Jimmy Zambrano 2019 q3 i2 The same interaction pattern held in the delayed retention test for instructional efficiency, with a small-to-medium effect at high information density (η²p = .04). → Jimmy Zambrano 2019 (2)

Evidence

Jimmy Zambrano 2019

Jimmy Zambrano, Femke Kirschner, John Sweller, Paul A. Kirschner. (2019). Effects of group experience and information distribution on collaborative learning. Instructional Science. https://doi.org/10.1007/s11251-019-09495-0

q3 · i1 · causal · r2

ANOVA interaction in the short-term retention phase. The interaction showed an efficiency advantage for experienced groups only where task information density was high (η²p = .03); at low density the groups "are not significantly different", so the advantage is conditional rather than general.

"Regarding instructional efficiency, the significant interaction between main effects indicated that for the task with high information density, experienced groups are more efficient than inexperienced groups, (p = .02, /u1D7022 p = .03). However, for the task with low information density, experienced groups and inexperienced groups are not significantly different (p = .37, /u1D7022 p = .01)."

Jimmy Zambrano 2019 (2)

Jimmy Zambrano, Femke Kirschner, John Sweller, Paul A. Kirschner. (2019). Effects of group experience and information distribution on collaborative learning. Instructional Science. https://doi.org/10.1007/s11251-019-09495-0

q3 · i2 · causal · r2

Delayed retention phase efficiency interaction: experienced groups were more efficient only for high information density tasks (η²p = .04, a small-to-medium effect); at low information density the difference was not significant (η²p = .00).

"The significant interaction between main effects indicated that for the task with high information density, experienced groups are more efficient than inexperienced groups, (p = .01, /u1D7022 p = .04). However, for low information density, experienced and inexperienced groups are not significantly different (p = .90, /u1D7022 p = .00)."

Discussion

Page metadata
Field Value
type claim
id zambrano-2019-efficiency-advantage-only-high-density
title The efficiency advantage of prior collaborative experience emerges under high information density but not under low information density
description The efficiency advantage of prior collaborative experience emerges under high information density but not under low information density
status review
evidence_strength moderate
newest_evidence 2019
generated by process:wiki-ingest on 2026-10-18
trust unverified — no one has confirmed this page's content
sources 2 — jimmy-zambrano-2019, jimmy-zambrano-2019-2

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