Claims

Test items based on diagrams did not produce significantly higher scores than purely verbal items

Claim · All claims
Evidence · 1 study · causal r1 · 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? Test items based on diagrams did not produce significantly higher scores than purely verbal items. → 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

In the same four-version experiment with 291 air ROTC students, diagram-based test items did not produce significantly higher scores than purely verbal items, as the review reports: "Test items based on diagrams did not produce significantly higher scores than purely verbal items."

"Test items based on diagrams did not produce significantly higher scores than purely verbal items."

Discussion

Page metadata
Field Value
type claim
id diagram-items-not-significantly-higher-than-verbal-items
title Test items based on diagrams did not produce significantly higher scores than purely verbal items
description Test items based on diagrams did not produce significantly higher scores than purely verbal items
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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