Students’ Grammar and Vocabulary Mastery - Does It Correlate to Students’ Writing Skills?

Sep 29, 2026

The study examines how students’ vocabulary mastery and grammar competence relate to essay writing skills. It addresses vocabulary as a common barrier to writing and evaluates whether grammatical skills support clarity, coherence, and rule-based expression. Using an ex post facto design with 104 participants, data are collected via an essay text, grammar mastery test, and vocabulary mastery test. Analysis uses product-moment correlation and multiple regression.

LanguageEnglish

CategoryExam

FormatPDF

Pages10

Reading Time25 min

AccessFree to download

Introduction

Writing skills and common challenges

Method and instruments

Data sources and tests

Data analysis

Correlation and multiple regression

Findings and implications

Effects of grammar and vocabulary mastery

p-ISSN: 2088-6991 Tarbiyah: Jurnal Ilmiah Kependidikan e-ISSN: 2548-8376 Vol. 12 No. 1 June 2023 (1 – 10) June 2023 Website: [http://jurnal.uin-antasari.ac.id/index.php/jtjik](http://jurnal.uin-antasari.ac.id/index.php/jtjik) Students’Grammar and Vocabulary Mastery: Does It Correlate To Students’Writing Skills? Dian Luthfiyanti* English Education Study Program, Universitas Islam Lamongan, East Java, Indonesia Tiara Widyaiswara English Education Study Program, Universitas Islam Lamongan, East Java, Indonesia Zuli Dwi Anggraini English Education Study Program, Universitas Islam Lamongan, East Java, Indonesia *[Correspondence author:](Correspondence author: dianluthfiyati@unisla.ac.id)[ ](Correspondence author: dianluthfiyati@unisla.ac.id)[dianluthfiyati@unisla.ac.id](Correspondence author: dianluthfiyati@unisla.ac.id)[ ](Correspondence author: dianluthfiyati@unisla.ac.id)DOI: [http://dx.doi.org/10.18592/tarbiyah.v12i1.7341](http://dx.doi.org/10.18592/tarbiyah.v12i1.7341) Key Words: essay writing grammar mastery vocabulary mastery writing skills Received : 22 September 2022 Revision : 25 October 2022 Accepted : 15 June 2023 Published : 24 June 2023 Abstract: The lack of vocabulary mastery often becomes an obstacle in writing, whereas vocabulary determines how skilled a person is in language. It is also supported by qualified grammatical skills so that the writing is directed and by existing rules, producing readable and coherent writing content. This study aims to describe pupils' essay writing skills and the link between grammar competence and vocabulary mastery. The study is ex post facto. The sample in this study is 104. The research data were obtained through three instruments: an essay text, a grammar mastery test, and a vocabulary mastery test. The data analysis technique used is product-moment correlation and multiple regression. Mastery of vocabulary and grammar together has a considerable impact on English Education students' essay writing skills; grammar competence considerably impacts English Education students' essay writing abilities; and vocabulary knowledge substantially impacts English Education students' essay writing abilities. It implies that mastery of vocabulary and grammar significantly impacts students' essay-writing abilities at Universitas Islam Lamongan. To cite this article: Luthfiyati, D., Widyaiswara, T. , Anggraini, Z.D. (2023) . Students Grammar and Vocabulary Mastery: Does It Correlate to Students’ Writing Skills? Tarbiyah: Jurnal Ilmiah Kependidikan, 12(1), 1-10. [http://dx.doi.org/10.18592/tarbiyah.v12i1.7341](http://dx.doi.org/10.18592/tarbiyah.v12i1.7341) [This is an open access article under the CC-BY License](This is an open access article under the CC-BY License)[ ](This is an open access article under the CC-BY License)([https://creativecommons.org/licenses/by/4.0/](https://creativecommons.org/licenses/by/4.0/)) Students Grammar and Vocabulary… Introduction Education is one aspect that is closely related to everyday human life and is the basis used to plan and realize a learning activity. Education stakeholders have long been concerned about students' poor performance on English language exams. Students' inability to write quality essays may explain their performance poorly on English language exams (Komolafe & Yara, 2010) . Poor grasp of grammatical principles, difficulty in building effective sentences, lack of teachers' exposure to modern teaching methods, inadequate preparation, inability to write coherently, and technical weakness are all common factors, according to the (West African Examinations Council , 2019) . Writing is one of the fundamental English language abilities (Rao, 2019) . The writing process involves the compilation of texts, orthography, and gramma (Uibu & Liiver, 2015) . Writing is similar to speaking in daily activities since we can convey our thoughts, opinions, and information. Writing is an author putting their th

FAQs

What is the purpose of the study?

To describe pupils’ essay writing skills and the relationship between grammar competence and vocabulary mastery.

What research design and sample size are used?

The study uses an ex post facto design with a sample of 104.

How are the data collected and analyzed?

Data come from an essay text, a grammar mastery test, and a vocabulary mastery test, analyzed using product-moment correlation and multiple regression.

Sep 29, 2026

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