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Partial Vocabulary Learning through Multimedia Input: An Analysis of the Effects of Captions and Subtitles

Soltani, Mohammad | 2020

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 52873 (31)
  4. University: Sharif University of Technology
  5. Department: Languages and Linguistics Center
  6. Advisor(s): Jahangard, Ali
  7. Abstract:
  8. The current study aimed to investigate the differential effects of multimedia input with no subtitle, subtitle, or caption (L2 subtitle) on vocabulary retention while controlling for the possible effects of students' vocabulary size and language aptitude as covariates. A total of 81 undergraduate university students were assigned to the study from three intact groups at Sharif University of Technology. All of the participants were Persian speakers and were in the age range of 18 and 22 years old; homogeneity of the students regarding their language proficiency was also established. During two different sessions, students' vocabulary size and language aptitude were measured. The groups were randomly assigned to no subtitle, subtitle, and caption groups. Two different short clips - one was a most-watched clip about health, and the other one was related to their majors (engineering) - were selected from TED (ted.com). A word pool was generated based on the clips and served as a pre-test to choose words no one knew. Then, based on unfamiliar words, a partial vocabulary test was developed, and administered immediately after presenting the clips to measure students' immediate vocabulary retention. One week after, the same test in which the items were reshuffled was utilized to measure their delayed vocabulary retention. The data obtained from different groups were compared through running an analysis of covariance (ANCOVA) wherein students' vocabulary size and language aptitude, as covariates, were controlled. Results revealed that on the immediate retention of vocabulary, both the captioned and the subtitled groups had performed significantly better than the no-subtitle group; furthermore, the findings suggested that captioned input was the most effective aid. However, concerning delayed retention of vocabulary, no significant difference among the groups was found. The findings also pointed out that learners' vocabulary size positively correlated with both immediate and delayed vocabulary retention. Additionally, although a positive correlation between learners' language aptitude and immediate vocabulary retention was suggested, no statistically significant correlation between their language aptitude and delayed vocabulary retention was found
  9. Keywords:
  10. Multimedia Services ; Language Attitude ; Multimedia Input with no Subtitle ; Partial Vocabulary Learning

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