Multidisciplinary Indonesian Center Journal
Vol. 3 No. 3 (2026): Vol. 03 No. 3 Edisi Juli 2026

ENHANCING PARAGRAPH WRITING AMONG NINTH-GRADE STUDENTS THROUGH THE COMPLETE-SENTENCE MODEL: A PRETEST–POSTTEST STUDY

Rahmadsyah Lubis (Sekolah Tinggi Ilmu Kepolisian)
Nisrina Nurhaliza (Sekolah Tinggi Ilmu Kesehatan Bina Cipta Husada)
Sri Handayani Siregar (Politeknik Kesehatan YRSU Dr. Rusdi)
Eni Fauziah Harahap (UIN Syekh Ali Hasan Ahmad Addary)
Mirjam Anugerahwati (Universitas Negeri Malang)



Article Info

Publish Date
21 Jul 2026

Abstract

This study investigated the effectiveness of the Complete‑Sentence Model in enhancing paragraph‑writing ability among ninth‑grade students at SMP Negeri 2 Sibabangun. Specifically, it aimed to (1) describe the implementation of the Complete‑Sentence Model in teaching paragraph writing, (2) measure students’ paragraph‑writing ability before and after the intervention, and (3) determine whether the model produced a statistically significant improvement. A pre‑experimental one‑group pretest–posttest design was employed. The population was all Grade IX students (N = 84); a purposive sample of 29 students from class IX C participated. Data were collected via observation checklists and writing tests. Findings show that implementation quality was rated as good (mean = 3.4). Students’ mean writing score improved markedly from 39 (pretest; fail) to 75 (posttest; good). A paired t‑test confirmed the improvement was statistically significant (t = 11.78 > tcritical = 2.05), leading to acceptance of the hypothesis. The results indicate that the Complete‑Sentence Model is an effective instructional strategy for improving paragraph‑writing ability among ninth‑grade students at the study site.

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Journal Info

Abbrev

micjo

Publisher

Subject

Religion Humanities Earth & Planetary Sciences Education Other

Description

Multidisciplinary Indonesian Center Journal (MICJO) adalah Jurnal multidisiplin yang membahas dan mengkaji semua disiplin ilmu, seperti: - Humaniora - Ilmu sosial - IPA - Ilmu hukum - Ilmu pendidikan, - Ilmu agama - Ilmu bahasa - Filsafat, - Teknik - Bisnis - Ekonomi - Manajemen - Teknologi ...