Claims

Viewers-only analysis shows positive effects on declarative and contextual knowledge

Claim · All claims
Evidence · 1 study · causal r1 · q3
Currency · newest study 2022 · 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? Even with the strictest control for self-selection, positive causal effects appeared for declarative and contextual knowledge. → Tani 2022

Evidence

Tani 2022

Tani, M., Manuguerra, M., & Khan, S. (2022). Can videos affect learning outcomes? Evidence from an actual learning environment. Education Tech Research Dev. https://doi.org/10.1007/s11423-022-10147-3

q3 · i? · causal · r1

Viewers-only analysis (Table 4) comparing students who watched presentation A with those who watched presentation B, reducing observations to about 25% of the original sample. Contrasts were "+ 18.1 points" (p = .091) and "+ 34.3 points" (p = .077).

"The contrast analysis (Model 3) indicates substantive differences for declarative knowledge (+ 18.1 points out of 100 and p-value of 0.091) and contextual knowledge (+ 34.3 points and p-value of 0.077)"

Discussion

Page metadata
Field Value
type claim
id viewers-only-positive-effects-declarative-contextual
title Viewers-only analysis shows positive effects on declarative and contextual knowledge
description Viewers-only analysis shows positive effects on declarative and contextual knowledge
status review
evidence_strength weak
newest_evidence 2022
generated by process:wiki-ingest on 2026-10-28
trust unverified — no one has confirmed this page's content
sources 1 — tani-2022

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