Viewing instructional videos improves EFL learners' language proficiency regardless of whether captions are present.¶
Claim · All claims
Evidence · 1 study · causalr2·q3
Currency · newest study 2014 · 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? Both the experimental and control groups recorded gains in language proficiency from pre-MET to post-MET. → BavaHarji 2014
Evidence¶
BavaHarji 2014¶
BavaHarji, M., Alavi, Z. K., & Letchumanan, K. (2014). Captioned Instructional Video: Effects on Content Comprehension, Vocabulary Acquisition and Language Proficiency. English Language Teaching, 7(5). https://doi.org/10.5539/elt.v7n5p1
q3 · i? · causal · r2
The study found that "positive effects of viewing the instructional videos were evident for both groups", with the control group also improving from a pre-MET mean of 63.10 to a post-MET mean of 68.12.
"although positive effects of vi ewing the instructional videos were evident for both groups, the experimental groups’ performance was much better than the control group"
Discussion¶
Related Claims¶
- Viewing captioned instructional videos significantly improves EFL learners' overall language proficiency compared to viewing without captions. — related
- Viewing captioned instructional videos significantly improves EFL learners' vocabulary acquisition compared to viewing without captions. — related
- Viewing captioned instructional videos does not significantly improve EFL learners' content comprehension compared to viewing without captions. — related
- Providing captions of any type improved general listening comprehension of EFL students compared with no captions — related
- An audio-visual intervention program produces significantly higher post-test language development, listening comprehension and vocabulary in preschool children than no treatment — related
- Full captions significantly improved EFL learners' general listening comprehension from pre-test to post-test — related
- Keyword captions significantly improved EFL learners' general listening comprehension from pre-test to post-test — related
- The four groups were homogeneous in general English proficiency before treatment (placement-test ANOVA sig .881) — related
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