Asian Journal of Education and Social Studies

This research aims to determine the effectiveness and validity of essay writing training module in improving the literacy skills of high school students. The research design used in this study is the ADDIE development research model. This development research was conducted from 15^th to 30^th December 2023 at secondary School. The research subjects are the supervising teachers and students who are members of the KIR UPT SMAN 1 Bone. The research objects include: (1) the essay writing skills of the students, (2) the response of the supervising teachers of KIR UPT SMAN 1 Bone to the developed training module, and (3) the response of the students who are members of KIR UPT SMAN 1 Bone to the developed training module. The instruments used to collect information in this development research are observation sheets and questionnaires. Based on the data analysis, according to the percentage of assessment by KIR UPT SMAN 1 Bone members regarding the effectiveness of the essay writing training module, out of 25 KIR UPT SMAN 1 Bone members, 19 students stated that the module is very effective, five students stated that the module is effective, and one student stated that the module is sufficiently effective. The research results show that the effectiveness test results of the essay writing training module development indicate that 76% of the respondents consider the module to be very effective, 20% of the respondents consider the module to be effective, and 4% of the respondents consider the module to be moderately effective in improving the literacy writing skills of the students. The validity test results of the essay writing training module development by subject matter experts and media experts indicate that the designed module is highly valid for use in improving the literacy writing skills of the students.