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Validation of the Korean Bilingual Version of the Vocabulary Size Test

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Title: Validation of the Korean Bilingual Version of the Vocabulary Size Test
Language: English
Authors: Hae In Park
Source: English Teaching. 2024 79(2):139-162.
Availability: Korea Association of Teachers of English. 6105 English Education Department, Chinju National University of Education, 369beon-gil 3, Jinyangho-ro, Jinju, Gyeongsangnam-do, 52673, Republic of Korea. Tel: +82-42-629-7381; Fax: +82-42-629-7320; e-mail: katejournal29@gmail.com; Web site: http://journal.kate.or.kr/
Peer Reviewed: Y
Page Count: 24
Publication Date: 2024
Document Type: Journal Articles
Reports - Research
Descriptors: Korean, Bilingualism, English (Second Language), Second Language Learning, Second Language Instruction, Language Proficiency, Language Tests, Foreign Countries, Vocabulary Development, Test Validity, Guidelines, Test Items, Correlation, Test Use, Imitation, Individual Differences
Geographic Terms: South Korea
ISSN: 1017-7108
2671-9312
Abstract: The present study aimed to validate a 70-item Korean bilingual version of the Vocabulary Size Test (VST) using Rasch modeling. The goal was to assess the applicability of this Korean version of the VST for Korean learners of English in an English as a foreign language (EFL) context by examining validity evidence based on Messick's framework. Specifically, the study focused on the content, substantive, and external aspects of construct validity. However, the findings provided weak evidence supporting the utility of the VST as a measure of receptive vocabulary for Korean EFL learners. The test was deemed too easy and lacked the ability to effectively differentiate among varying levels of second language proficiency, with many test items exhibiting unexpected behavior. Additionally, the VST showed a weak correlation with another measure of second language proficiency. In light of these findings, the study offers specific recommendations for improving the test's validity and usefulness.
Abstractor: As Provided
Entry Date: 2024
Accession Number: EJ1434340
Database: ERIC
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  Data: Korea Association of Teachers of English. 6105 English Education Department, Chinju National University of Education, 369beon-gil 3, Jinyangho-ro, Jinju, Gyeongsangnam-do, 52673, Republic of Korea. Tel: +82-42-629-7381; Fax: +82-42-629-7320; e-mail: katejournal29@gmail.com; Web site: http://journal.kate.or.kr/
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  Data: The present study aimed to validate a 70-item Korean bilingual version of the Vocabulary Size Test (VST) using Rasch modeling. The goal was to assess the applicability of this Korean version of the VST for Korean learners of English in an English as a foreign language (EFL) context by examining validity evidence based on Messick's framework. Specifically, the study focused on the content, substantive, and external aspects of construct validity. However, the findings provided weak evidence supporting the utility of the VST as a measure of receptive vocabulary for Korean EFL learners. The test was deemed too easy and lacked the ability to effectively differentiate among varying levels of second language proficiency, with many test items exhibiting unexpected behavior. Additionally, the VST showed a weak correlation with another measure of second language proficiency. In light of these findings, the study offers specific recommendations for improving the test's validity and usefulness.
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        StartPage: 139
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      – SubjectFull: Korean
        Type: general
      – SubjectFull: Bilingualism
        Type: general
      – SubjectFull: English (Second Language)
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      – SubjectFull: Second Language Learning
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      – SubjectFull: Language Proficiency
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        Type: general
      – SubjectFull: Foreign Countries
        Type: general
      – SubjectFull: Vocabulary Development
        Type: general
      – SubjectFull: Test Validity
        Type: general
      – SubjectFull: Guidelines
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      – SubjectFull: South Korea
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