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All Journal INTERACTION: Jurnal Pendidikan Bahasa
Difa Amini Harliana
Universitas Pekalongan
Education Environmental Science Languange, Linguistic, Communication & Media Other

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The Effectiveness of ZEP QUIZ-Based Assessment on Students’ Synonym Vocabulary Mastery Difa Amini Harliana; Sarlita D. Matra
INTERACTION: Jurnal Pendidikan Bahasa Vol. 13 No. 3 (2026): INTERACTION: Jurnal Pendidikan Bahasa
Publisher : Program Studi Pendidikan Bahasa Inggris, Universitas Pendidikan Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36232/interactionjournal.v13i3.5996

Abstract

This study investigated the effectiveness of ZEP QUIZ-based assessment in improving synonym vocabulary mastery among eleventh-grade EFL students at MAS Simbang Kulon, Indonesia. A quasi-experimental design with a non-equivalent control group was employed involving 62 students. Data were collected through pre-tests and post-tests and analyzed using the non-parametric Mann-Whitney U test on the students’ normalized gain (N-gain) scores. The findings revealed a significant difference in vocabulary improvement rates between the experimental and control groups (Asymp. Sig. < .001), with the experimental group achieving significantly higher mean N-gain score (85.37%, categorized as Effective) than the control group (28.71% categorized as Ineffective). These results indicate that ZEP QUIZ-based assessment is more effective than conventional assessment in enhancing students’ synonym vocabulary mastery. The study highlights the potential of gamified assessment as an engaging and effective tool for vocabulary learning in EFL classrooms.
Co-Authors Sarlita D. Matra