Claims

Students who generated their own solutions or observed the full process did not significantly outperform students who only viewed the outcomes of failed solution attempts on conceptual knowledge

Claim · All claims
Evidence · 1 study · causal r2 · q3 · i0 negligible
Currency · newest study 2021 · 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 i0 Contrary to Hypothesis 2, the contrast comparing PF and VF-process against VF-outcome on conceptual knowledge was not significant (ηp 2 = 0.01, below d = 0.2 equivalent). → Christian Hartmann 2021

Evidence

Christian Hartmann 2021

Christian Hartmann, Tamara van Gog, Nikol Rummel. (2021). Preparatory effects of problem solving versus studying examples prior to instruction. Instructional Science. https://doi.org/10.1007/s11251-020-09528-z

q3 · i0 · causal · r2

In the same ANCOVA on conceptual knowledge with covariates, the second a priori contrast testing whether PF and VF-process together outperformed VF-outcome was non-significant: "the contrast showed no significant differences, F(1, 166) = 1.42, p = 0.235". Equivalence was not tested.

"contrary to our expectation, the contrast showed no significant differences, F(1, 166) = 1.42, p = 0.235, ηp 2 = 0.01"

Discussion

Page metadata
Field Value
type claim
id pf-vf-process-not-superior-to-vf-outcome
title Students who generated their own solutions or observed the full process did not significantly outperform students who only viewed the outcomes of failed solution attempts on conceptual knowledge
description Students who generated their own solutions or observed the full process did not significantly outperform students who only viewed the outcomes of failed solution attempts on conceptual knowledge
status review
evidence_strength moderate
newest_evidence 2021
generated by process:wiki-ingest on 2026-10-15
trust unverified — no one has confirmed this page's content
sources 1 — christian-hartmann-2021

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