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Transforming English Correspondence Learning Through Flipped Classroom-Based Materials Kartikowati, Rr Sri; Nurmalasari, Dewi; Utari, Eka Dewi; Nida, Ria Rahma; Atmadja, Ferry Setyadi; Suhendry, Bayu; Riyantie, Mayang
Indonesian Journal of Education and Social Studies Vol 5, No 1 (2026)
Publisher : Nurul Jadid University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33650/ijess.v5i1.13101

Abstract

This study aimed to develop flipped classroom-based teaching materials for the English Correspondence course to improve students’ comprehension of professional written communication. The research was motivated by the limitations of conventional lecture-centered instruction, which often restricts student engagement and provides insufficient opportunities for independent and practice-oriented learning. A research and Development (R&D) approach employing the 4D model (Define, Design, Develop, Disseminate) was applied to systematically design, validate, and evaluate the instructional product. Data were collected through needs analysis, expert validation, student response questionnaires, and effectiveness testing using a pretest–posttest design. Expert validation results indicated a validity level of 86%, categorized as very valid, while practicality testing showed an 84% score, demonstrating that the materials were accessible and supportive of independent learning. Effectiveness testing revealed a significant improvement in students’ performance, with mean scores increasing from 58.51 (pretest) to 80.54 (posttest) and an N-gain value of 0.54, indicating moderate learning improvement. These findings suggest that flipped classroom-based teaching materials effectively enhance students’ conceptual understanding and practical competence in English business correspondence. The study implies that integrating validated digital instructional materials with student-centered learning models can strengthen technology-supported pedagogy and provide a scalable framework for improving professional communication learning in higher education.
DIGITAL LITERACY, SOCIAL MEDIA USAGE INTENSITY, AND ACADEMIC PROCRASTINATION AMONG VOCATIONAL STUDENTS Atito, Mahesa Mutiara; Marsofiyati; Riyantie, Mayang
Jurnal Pendidikan Ekonomi, Perkantoran, dan Akuntansi Vol. 7 No. 1 (2026): Jurnal Pendidikan Ekonomi, Perkantoran, dan Akuntansi (In Progress)
Publisher : Faculty of Economics and Business, Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jpepa.0701.01

Abstract

This study aims to examine the influence of digital literacy and social media usage intensity on academic procrastination among students majoring in Office Management at SMKN 25 Jakarta. Adopting a quantitative research design, primary data were gathered via questionnaire instruments while secondary data were obtained through documentary sources. The research sample comprised 119 students, determined through proportionate stratified random sampling. All data were processed using SPSS version 27, incorporating descriptive statistics, classical assumption testing, multiple linear regression, and hypothesis examination. The results indicate that digital literacy exerts a positive and significant impact on academic procrastination, evidenced by a t-value of 6.021 surpassing the critical t-value of 1.980 at a 0.001 significance level. Correspondingly, social media usage intensity yielded a t-value of 9.480 at the same significance threshold, confirming its positive and significant effect. When assessed jointly, both independent variables accounted for 72.4% of the variance in academic procrastination, reflected by an R Square of 0.724. These findings suggest that heightened levels of digital literacy and social media engagement are associated with a greater propensity for academic task avoidance among students.