• Audi Yundayani

  Author

• Emzir

  Author

• Zainal Rafli

  Author

English writing ability is a must for college students. It functions to support their academic
competencies. This study is intended to determine the effectiveness of the task-based
instructional materials on students’ writing ability for academic purposes. It involving firstsemester
students of non-English education study programs at STKIP Kusuma Negara, Jakarta,
Indonesia. The materials are developed based on students’ needs analysis through distributed
questionnaire and interview. The data were collected through writing test, using t-test analysis
statistically. The research finding shows that model of task based English writing material for
academic purposes is effective. From the critical table of t, the while score of t observed for df. 29 is
-27.061 by p-value = 0.000 < 0.05. It means H0 is rejected and H1 is accepted. Therefore, based
on the criterion above the hypothesis is accepted. It can be interpreted that task-based
instructional materials of writing skills for academic purposes give significant influence on
improving the students’ writing ability. In shorts, task-based instructional materials of English
writing for academic purposes can help students to overcome their difficulty in generating,
developing and organizing ideas into a paragraph text form.

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