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All Journal Jurnal Komunitas Bahasa
Muhammad Ikhsan
SMA Negeri 1 Bandar Pulau
Education Languange, Linguistic, Communication & Media

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Pengaruh Model Pembelajaran RADEC terhadap Kemampuan Menulis Teks Eksplanasi Siswa Kelas XI SMA Negeri 1 Bandar Pulau Siti Marpaung; Hanina; Muhammad Ikhsan
Jurnal Komunitas Bahasa Vol 14 No 1 (2026): April 2026
Publisher : Universitas Asahan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36294/cz2wt254

Abstract

This study aims to determine the effect of the RADEC (Read, Answer, Discuss, Explain, Create) learning model on the explanatory text writing ability of eleventh-grade students at SMA Negeri 1 Bandar Pulau. The background of this research is based on the low ability of students in writing explanatory texts and the need for innovative, student-centered learning models. This study employed a quantitative approach using a quasi-experimental method with a posttest-only control group design. The study population consisted of 118 eleventh-grade students, with a sample of 57 students selected through purposive sampling, comprising 27 students in the control class (IPS 1) and 30 students in the experimental class (IPS 2). Data were collected through an explanatory text writing test assessed using a rubric covering text structure, linguistic conventions, and content appropriateness. Data analysis was performed using the Liliefors normality test, F-test for homogeneity, and an independent sample t-test for hypothesis testing. The results showed tcount = 5.83 > ttable = 1.67 at a 5% significance level with df = 55, indicating that H0 was rejected and Ha was accepted. The mean score of the experimental class (82.00) was significantly higher than that of the control class (63.04). Therefore, the RADEC learning model has a significant effect on students' explanatory text writing ability.
Pengaruh Model Pembelajaran Project Based Learning terhadap Kemampuan Menulis Teks Argumentasi Siswa SMAN 1 Bandar Pulau Jumini; Tuti Ariani Nasution; Muhammad Ikhsan
Jurnal Komunitas Bahasa Vol 14 No 1 (2026): April 2026
Publisher : Universitas Asahan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36294/aph0xr55

Abstract

The low ability of students to write argumentative texts is a persistent problem in Indonesian language learning. This study aimed to determine the effect of the Project Based Learning (PjBL) model on the argumentative writing ability of students at SMAN 1 Bandar Pulau. A quantitative experimental approach was used with a Posttest-Only Control Design. The sample consisted of a control class (XI IPA 1, n=31) and an experimental class (XI IPA 2, n=30), selected through random sampling. The instrument was an argumentative writing test. Data were analyzed using normality tests, homogeneity tests, and hypothesis testing via Independent Sample T-Test. Results showed that the experimental class achieved a significantly higher mean score (81.33) than the control class (62.83), with a significance value of 0.000 < 0.05. These findings confirm that the Project Based Learning model significantly improves students’ argumentative writing ability. These findings indicate that Project-Based Learning not only improves students’ argumentative writing performance but also enhances critical reasoning and evidence-based writing skills.
Co-Authors Hanina Jumini Siti Marpaung Tuti Ariani Nasution