The Effectiveness of Technology-Mediated Task-Based Language Teaching on the Pronunciation of English Vowels: A Study of Persian-Speaking EFL Learners.

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Title: The Effectiveness of Technology-Mediated Task-Based Language Teaching on the Pronunciation of English Vowels: A Study of Persian-Speaking EFL Learners.
Authors: Tavakoli, Hossein1 (AUTHOR) hossein.tavakoli@iau.ac.ir
Source: CALICO Journal. 2026, Vol. 43 Issue 1, p108-144. 37p.
Subject Terms: *Computer assisted language instruction, *Articulation (Speech), *Curriculum planning, Vowels
Abstract: This study investigated the effects of technology-mediated task-based language teaching (TMTBLT) on the pronunciation of English vowels by Persian-speaking EFL learners. Drawing on evidence that vowel contrasts are a persistent difficulty for Persian learners, the study aimed to examine whether TMTBLT—integrating digital practice tools and interactive feedback—improves vowel accuracy compared with traditional, teacher-led pronunciation instruction. Two intact junior classes were randomly assigned to experimental (TMTBLT) and control (traditional instruction) conditions. Data were collected with pre-tests and post-tests targeting 24 words containing key English vowel sounds, supplemented by learner interviews and reflective logs. Audio productions were rated by trained native-speaker raters; quantitative data were analyzed using analysis of covariance to control for baseline differences, and qualitative responses were subjected to thematic analysis. Results showed clear improvements in vowel accuracy for learners who received TMTBLT and revealed greater engagement, positive attitudes toward interactive feedback, and increased opportunities for communicative practice. The findings indicate that TMTBLT is a promising approach for enhancing vowel pronunciation in EFL contexts and have implications for pronunciation pedagogy and curriculum design. [ABSTRACT FROM AUTHOR]
Copyright of CALICO Journal is the property of University of Toronto Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: The Effectiveness of Technology-Mediated Task-Based Language Teaching on the Pronunciation of English Vowels: A Study of Persian-Speaking EFL Learners.
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  Data: <searchLink fieldCode="AR" term="%22Tavakoli%2C+Hossein%22">Tavakoli, Hossein</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hossein.tavakoli@iau.ac.ir</i>
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  Data: <searchLink fieldCode="JN" term="%22CALICO+Journal%22">CALICO Journal</searchLink>. 2026, Vol. 43 Issue 1, p108-144. 37p.
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  Data: *<searchLink fieldCode="DE" term="%22Computer+assisted+language+instruction%22">Computer assisted language instruction</searchLink><br />*<searchLink fieldCode="DE" term="%22Articulation+%28Speech%29%22">Articulation (Speech)</searchLink><br />*<searchLink fieldCode="DE" term="%22Curriculum+planning%22">Curriculum planning</searchLink><br /><searchLink fieldCode="DE" term="%22Vowels%22">Vowels</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study investigated the effects of technology-mediated task-based language teaching (TMTBLT) on the pronunciation of English vowels by Persian-speaking EFL learners. Drawing on evidence that vowel contrasts are a persistent difficulty for Persian learners, the study aimed to examine whether TMTBLT—integrating digital practice tools and interactive feedback—improves vowel accuracy compared with traditional, teacher-led pronunciation instruction. Two intact junior classes were randomly assigned to experimental (TMTBLT) and control (traditional instruction) conditions. Data were collected with pre-tests and post-tests targeting 24 words containing key English vowel sounds, supplemented by learner interviews and reflective logs. Audio productions were rated by trained native-speaker raters; quantitative data were analyzed using analysis of covariance to control for baseline differences, and qualitative responses were subjected to thematic analysis. Results showed clear improvements in vowel accuracy for learners who received TMTBLT and revealed greater engagement, positive attitudes toward interactive feedback, and increased opportunities for communicative practice. The findings indicate that TMTBLT is a promising approach for enhancing vowel pronunciation in EFL contexts and have implications for pronunciation pedagogy and curriculum design. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of CALICO Journal is the property of University of Toronto Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.3138/calico-2024-0014
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      – Code: eng
        Text: English
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        PageCount: 37
        StartPage: 108
    Subjects:
      – SubjectFull: Computer assisted language instruction
        Type: general
      – SubjectFull: Articulation (Speech)
        Type: general
      – SubjectFull: Curriculum planning
        Type: general
      – SubjectFull: Vowels
        Type: general
    Titles:
      – TitleFull: The Effectiveness of Technology-Mediated Task-Based Language Teaching on the Pronunciation of English Vowels: A Study of Persian-Speaking EFL Learners.
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              Text: 2026
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              Y: 2026
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              Value: 43
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