Video-based treatment produces significant macrostructure gains over five weeks, with a significant Group x Test interaction¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3 · i3 large
Currency · newest study 2016 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i3 The repeated-measures ANOVA on RC MACS pre- and post-tests showed significant main effects for Group, Test, and the Group x Test interaction. → Lin 2016 q3 i3 Only the VNT group showed a significant pre-to-post MACS improvement (post-test M = 77.78 vs pretest M = 67.22, r = -0.44); the T and NT groups did not improve significantly. → Lin 2016 (2)

Evidence¶

Lin 2016¶

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

q3 · i3 · causal · r2

Repeated-measures ANOVA (Table 3) on RC MACS pre- and post-tests: Group F = 4.86, p = .010; Test F = 13.51, p = .000; Interaction (Group x Test) F = 7.66, p = .001. The one-way ANOVA of the post-test gave F (2, 95) = 11.07, p = .000, with the VNT group (M = 77.78) exceeding the T group (M = 65.50), r = .53, p = .000, and the NT group (M = 70.46), r = .31, p = .022.

"the results of a repeated measures ANOV A on the RC MACS pre- and post-tests [Test (Pre and Post) x Group (T, NT, and VNT)] show significant main effects for Group, Test, and the interaction of both"

Lin 2016 (2)¶

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

q3 · i3 · causal · r2

Paired t-tests on RC MACS pre- and post-scores for each group. "the VNT group achieved a significantly higher score on the MACS post-test (M = 77.78) than its scores on the pretest ( M = 67.22), r = -0.44"; NT and T groups showed no significant change.

"only the VNT group showed a significant difference between their MACS pre- and post-tests (VNT: t = -8.10, p = .000; NT: t = -1.85, p = .07; T: .614, p = .54)"

Discussion¶

Related Claims¶

• Video with concurrent narration and on-screen text yields higher immediate macrostructure comprehension than text alone or narration with text — related
• Presentation condition does not differentially affect microstructure comprehension over five weeks, though VNT and NT groups improved while the text-only group did not — related
• All ten multimedia treatment conditions produced significant pre-to-post achievement gains with medium or high effect sizes — related
• Across all three experiments jointly, the interaction between treatment (contrasts versus control) and measurement occasion was significant, with a reliable quadratic trend — related
• Repeated measures ANOVA shows significant time-of-testing effect and significant time-by-group interaction on word-problem scores — related