Dual coding theory as the explanatory account of video-supported L2 text comprehension¶

Theory · All theories
Evidence · 4 claims (4 for) · 1 study (1 causal), q3 · 1 of 1 report an effect size · 4 claims rest on one study

Description¶

The article uses Paivio's dual coding theory (DCT) to explain why video plus narration plus text fosters comprehension. DCT assumes "two functionally independent but interconnected systems, a nonverbal system specialized for dealing with nonlinguistic objects and events, and a verbal system specialized for dealing directly with language." In the VNT condition, participants could construct verbal and nonverbal mental representations simultaneously, and the article extends DCT via the logogen concept to explain macrostructure gains, where larger language units are composed of combinations of smaller units.

Design Implications¶

Context¶

Requirements¶

• Presentation must combine verbal codes (subtitles, narrations) with nonverbal codes (images) so both systems are engaged simultaneously.

Constraints¶

• The article notes multimedia input such as video, audio, and captions may cause cognitive overload because working memory capacity is limited.

Target Learners¶

• Chinese-speaking EFL university students

Target Learning Objectives¶

• L2 reading comprehension at macrostructure and microstructure levels

Claims¶

• Video Narration Text Improves Immediate Macs Comprehension [+M]
• Video Narration Text Improves Immediate Mics Comprehension [+M]
• Video Treatment Significant Macs Pre Post Gain [+M]
• Presentation condition does not differentially affect microstructure comprehension over five weeks, though VNT and NT groups improved while the text-only group did not [+M]

Related Theories¶

• Dual coding theory: parallel verbal and nonverbal representation systems as an alternative to schema theory
• Dual coding theory (Paivio) as an account of visual facilitation of L2 lexical knowledge

Examples¶

• Integrate video with narration and on-screen text in L2 reading comprehension instruction to foster macrostructure comprehension
• Dual Coding
• Multisensory Encoding
• Illustration Through Multiple Media

Key Sources¶

• Lin, L.-F. (2016). The Impact of Video-based Materials on Chinese-Speaking Learners’ English Text Comprehension. English Language Teaching, 9(10). https://doi.org/10.5539/elt.v9n10p1