Claims

In the underlying laboratory study, only expository instruction combined with probes produced CVS learning, with transfer limited by grade level

Claim · All claims
Evidence · 1 study (2 entries) · causal r1 · q2
Currency · newest study 2000 · 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 i? In the laboratory training study summarized by this article, only children in the training–probe condition increased CVS knowledge significantly across phases; probes alone or unguided exploration did not produce learning. → Eva Erdosne Toth 2000

Evidence

Eva Erdosne Toth 2000

Eva Erdosne Toth, David Klahr, and Zhe Chen. (2000). Bridging Research and Practice: A Cognitively Based Classroom Intervention for Teaching Experimentation Skills to Elementary School Children. Cognition and Instruction, 18(4), 423–459. https://doi.org/10.1207/s1532690xci1804_1

q2 · i? · design · r2

This article's summary of the laboratory training study (87 second through fourth graders randomly assigned to training–probe, no-training–probe, or no-training–no-probe conditions) that provided the basis for the classroom intervention. The article attributes the result to Chen and Klahr (1999).

"Only children in the training–probe condition increased their CVS knowledge significantly across the four phases in the laboratory study conducted by Chen and Klahr (1999); that is, expository instruction combined with probes led to learning, whereas neither probes alone nor unguided exploration did so."

Eva Erdosne Toth 2000 (2)

Eva Erdosne Toth, David Klahr, and Zhe Chen. (2000). Bridging Research and Practice: A Cognitively Based Classroom Intervention for Teaching Experimentation Skills to Elementary School Children. Cognition and Instruction, 18(4), 423–459. https://doi.org/10.1207/s1532690xci1804_1

q2 · i? · causal · r1

Grade-moderated transfer from the same summarized laboratory study: third and fourth graders transferred to near domains, but only fourth graders retained the skill on a 7-month posttest compared to untrained fourth graders; second graders dropped back to baseline in transfer phases.

"the third and fourth graders who participated in expository instruction successfully transferred their newly acquired CVS skills to near transfer domains, whereas only fourth graders were able to retain the skill and show significantly better CVS performance (as compared to untrained fourth graders) on the paper-and-pencil posttest administered 7 months later."

Discussion

Page metadata
Field Value
type claim
id lab-expository-instruction-probes-effective
title In the underlying laboratory study, only expository instruction combined with probes produced CVS learning, with transfer limited by grade level
description In the underlying laboratory study, only expository instruction combined with probes produced CVS learning, with transfer limited by grade level
status review
evidence_strength moderate
newest_evidence 2000
generated by process:wiki-ingest on 2026-10-18
trust unverified — no one has confirmed this page's content
sources 2 — eva-erdosne-toth-2000, eva-erdosne-toth-2000-2

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