About 80 percent of verbal test items were answered correctly by trainees who heard the best commentary without seeing the pictures¶
Claim · All claims
Evidence · 1 study · causalr1·q2
Currency · newest study 1955 · 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? Trainees who merely heard the best commentary without seeing the pictures answered about 80 percent of test items based on facts presented in the film correctly. → Nelson 1955
Evidence¶
Nelson 1955¶
Nelson, H. E. and Vandermeer, A. W. (1955). The Relative Effectiveness of Differing Commentaries in an Animated Film on Elementary Meteorology. Technical Report SDC 269-7-43. https://eric.ed.gov/?id=ED016911
q2 · i? · causal · r1
A supplementary condition in which trainees heard the best commentary without seeing the pictures answered about 80 percent of fact-based test items correctly, showing "the sound track" carried much of the instructional effect.
"About 80 percent of the test items based on facts presented in the film were answered correctly by those trainees who merely heard the best commentary without seeing the pictures."
Discussion¶
Related Claims¶
- Audience participation during a factual film improves learning of the practiced verbal material compared with simple viewing, with gains attributable to practice rather than motivation — related
- Reading a text with related decorative pictures yields more correct answers to knowledge items than reading the text without pictures (Experiment 1, university students) — related
- Modified film commentaries were consistently superior to the original commentary although differences were not statistically significant at a high level of confidence — related
- Multimedia presentation effects are strongest for procedural knowledge (technical and contextual) — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
audio-only-commentary-80-percent-verbal-items |
title |
About 80 percent of verbal test items were answered correctly by trainees who heard the best commentary without seeing the pictures |
description |
About 80 percent of verbal test items were answered correctly by trainees who heard the best commentary without seeing the pictures |
status |
review |
evidence_strength |
weak |
newest_evidence |
1955 |
generated |
by process:wiki-ingest on 2026-10-28 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — nelson-1955 |
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