Claims

Collective portfolio scores explained additional variance in conceptual understanding beyond achievement, participation, and individual inquiry

Claim · All claims
Evidence · 1 study · causal r1 · q3
Currency · newest study 2006 · 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 i? Entering portfolio scores (collective inquiry) in the final regression step added a statistically significant 4% of variance to conceptual understanding, R² = .57, p < .05. → Eddy Y.C. Lee 2006

Evidence

Eddy Y.C. Lee 2006

Eddy Y.C. Lee, Carol K.K. Chan, & Jan van Aalst. (2006). Students assessing their own collaborative knowledge building. Computer-Supported Collaborative Learning. https://doi.org/10.1007/s11412-006-8997-6

q3 · i? · causal · r1

Hierarchical multiple regression with essay scores as dependent variable (n = 52 at final step): academic achievement entered first (R² = .33), ATK inquiry second (nonsignificant change, R² = .34), explanation and inquiry scores third (additional 19%, R² = .53), portfolio scores last. The article concludes portfolio scores "predicted students' conceptual understanding" over and above the earlier steps; no standardized effect size is printed.

"when the portfolio scores (collective inquiry) were entered an additional 4% of variance to conceptual understanding was explained, R2 = .57, F (5, 52) = 5.3, p < .05."

Discussion

Page metadata
Field Value
type claim
id collective-portfolio-scores-predict-understanding
title Collective portfolio scores explained additional variance in conceptual understanding beyond achievement, participation, and individual inquiry
description Collective portfolio scores explained additional variance in conceptual understanding beyond achievement, participation, and individual inquiry
status review
evidence_strength moderate
newest_evidence 2006
generated by process:wiki-ingest on 2026-10-18
trust unverified — no one has confirmed this page's content
sources 1 — eddy-yc-lee-2006

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