A fourth showing of an educational film produced an even smaller increment, or in two cases a slight decrement, over three showings¶
Claim · All claims
Evidence · 1 study · causalr?·q3
Currency · newest study 1953 · 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? Four showings yielded a smaller increment over three showings, and in two cases a slight decrement. → Research Abstracts: Films 1953
q2 i? Increasing from three to four showings of the same film produced a smaller learning increment than earlier repetitions, and in two cases a slight decrement. → RESEARCH ABSTRACTS: FILMS 1953
Evidence¶
Research Abstracts: Films 1953¶
Research Abstracts: Films. (1953). https://eric.ed.gov
q3 · i? · causal · r?
Continuation of the repetition-gain analysis in McTavish's experiment, comparing the fourth showing against three showings across the four films. The abstract reports "an even smaller increment, or in two cases a slight decrement"; no effect size or test statistic is printed.
"Four showings resulted in an even smaller increment, or in two cases a slight decrement, over three showings."
Discussion¶
Related Claims¶
- A second showing of an educational film produced substantial learning increments, but a third showing failed to add materially or significantly — related
- Repeating an instructional film increases learning only up to a point — a broader claim this one bears on
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
fourth-film-showing-smaller-increment-or-decrement |
aliases |
mctavish-fourth-showing-smaller-increment-or-decrement |
title |
A fourth showing of an educational film produced an even smaller increment, or in two cases a slight decrement, over three showings |
description |
A fourth showing of an educational film produced an even smaller increment, or in two cases a slight decrement, over three showings |
status |
review |
evidence_strength |
moderate |
newest_evidence |
1953 |
generated |
by process:wiki-ingest on 2026-10-28 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — research-abstracts-films-1953 |
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