The spoken–written advantage over spoken-only presentation appears for system-paced but not learner-paced materials¶

Claim · All claims
Evidence · 1 study · quant-synthesis r3 · q3 · i1 small
Currency · newest study 2012 · checked against its sources 2026-10-15 (automated, 1 of 1 entry) · not reviewed by a person

Subclaims¶

q3 i1 System-paced studies showed a statistically detectable advantage of spoken–written over spoken-only presentations (g = 0.34), while learner-paced studies did not (g = 0.12). → Adesope 2012

Evidence¶

Adesope 2012¶

Adesope, O. O., & Nesbit, J. C. (2012). Verbal Redundancy in Multimedia Learning Environments: A Meta-Analysis. Journal of Educational Psychology. https://doi.org/10.1037/a0026147

q3 · i1 · quant-synthesis · r3

Moderator analysis of presentational features: system-paced studies (k = 24) showed Hedges's g = 0.34 favoring spoken–written presentation while learner-paced studies (k = 10) showed g = 0.12, not statistically detectable. Authors offer the recovery-of-misperceived-information explanation.

"System-paced studies with spoken–written presentations were associated with a statistically detectable effect size ( g = 0.34). The learner-paced studies were not ( g = 0.12). One plausible explanation for this result is that learners in system-paced conditions who misperceive information from one source may not have time to reread or relisten to the missed information."

Discussion¶

Related Claims¶

• On-screen text that duplicates the narration of a diagram can hurt learning, but spoken–written redundancy is not harmful on average and helps over spoken-only presentation in some conditions — the general claim this finding bears on, with the studies behind it
• Verbal redundancy does not facilitate learning when materials include images or animation — related
• Nonsegmented spoken–written presentations show a larger advantage over spoken-only presentation than segmented ones — related
• Spoken–written presentations do not outperform written-only presentations but do outperform spoken-only presentations — related
• Presenting words as spoken narration rather than on-screen text alongside graphics improves learning — related
• Verbal redundancy (spoken–written presentation) yields a small overall learning benefit with large between-study heterogeneity — a broader claim this one bears on
• Letting learners pace instruction helped on complex material in one experiment, while learner control in general showed almost no effect across 18 studies — related
• The animation advantage is largest when instruction includes no accompanying text — related
• Redundant speech-gesture cooperation improves recall and social perception more than complementarity — related
• The modality effect tends to be strongest when material is fast-paced and under system control — related