Claims

Fourth-graders given a choice-based (Select) preparation task outperformed those given a highly open-ended (Generate) task on the posttest in a productive-failure-style collaboration design

Claim · All claims
Evidence · 1 study · causal r1 · q2 · i2 medium
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.

q2 i2 With English and Science scores as covariates, the Select condition significantly outperformed the Generate condition on the posttest, with a moderate to large effect size (d = 0.77). → Rachel Lam 2019

Evidence

Rachel Lam 2019

Rachel Lam. (2019). What students do when encountering failure in collaborative tasks. npj Science of Learning. https://doi.org/10.1038/s41539-019-0045-1

q2 · i2 · causal · r1

Quasi-experimental analysis of dyadic posttest scores from two intact fourth-grade classes (n = 40 students, 20 dyads), with English and Science exam scores as covariates. "Cohen's d = 0.77" favors Select; Levene's test showed equal variance, P = 0.21.

"With English and Science scores as covariates, an ANCOVA showed a significant effect of condition, F(3,16) = 8.89, P < 0.01, and we observed a moderate to large effect size, Cohen's d = 0.77."

Discussion

Page metadata
Field Value
type claim
id select-outperformed-generate-posttest-fourth-grade
title Fourth-graders given a choice-based (Select) preparation task outperformed those given a highly open-ended (Generate) task on the posttest in a productive-failure-style collaboration design
description Fourth-graders given a choice-based (Select) preparation task outperformed those given a highly open-ended (Generate) task on the posttest in a productive-failure-style collaboration design
status review
evidence_strength moderate
newest_evidence 2019
generated by process:wiki-ingest on 2026-10-26
trust unverified — no one has confirmed this page's content
sources 1 — rachel-lam-2019

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