Claims

Learners invest more mental effort in media they perceive as difficult, so multimedia should raise perceived demand characteristics

Claim · All claims
Evidence · 1 study · review r2 · q2
Currency · newest study 1993 · 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? Learners invest more mental effort in media they perceive as difficult than those they perceive as easy; less effort is exerted viewing video than reading comparable content in books. → Innwoo Park and Michael J. Hannafin 1993

Evidence

Innwoo Park and Michael J. Hannafin 1993

Innwoo Park and Michael J. Hannafin. (1993). Empirically-Based Guidelines for the Design of Interactive Multimedia. Educational Technology Research and Development, Vol. 41, No. 3, pp. 63-85. http://www.jstor.org/stable/30218388

q2 · i? · review · r2

The review attributes to Salomon (1984) that "Learners invest more mental ef- fort in media they perceive as difficult than those they perceive as easy," and that because television is perceived as passive and easy, less effort is exerted viewing video than reading comparable book content. The stated implication is to embed activities that increase the perceived demand characteristics of both the media and the learning activities.

"Learners invest more mental ef- fort in media they perceive as difficult than those they perceive as easy."

Discussion

Page metadata
Field Value
type claim
id perceived-demand-drives-invested-mental-effort
title Learners invest more mental effort in media they perceive as difficult, so multimedia should raise perceived demand characteristics
description Learners invest more mental effort in media they perceive as difficult, so multimedia should raise perceived demand characteristics
status review
evidence_strength weak
newest_evidence 1993
generated by process:wiki-ingest on 2026-10-16
trust unverified — no one has confirmed this page's content
sources 1 — innwoo-park-and-michael-j-hannafin-1993

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