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All Journal Jurnal EDUCATIO: Jurnal Pendidikan Indonesia
Zila Razilu
Universitas Muhammadiyah Makassar
Education

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Visualize explore diagnose reflect (VEDR): design and pilot evaluation of a needs-based instructional model for computer hardware concepts Zila Razilu; Sulfasyah Sulfasyah; Syamsiarna Nappu
Jurnal EDUCATIO: Jurnal Pendidikan Indonesia Vol. 12 No. 1 (2026): Jurnal EDUCATIO: Jurnal Pendidikan Indonesia
Publisher : Indonesian Institute for Counseling, Education and Therapy (IICET)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29210/1202627256

Abstract

Mobile resources for computer hardware learning are usually developed as media products without an explicit instructional sequence. This design and development study, guided by the ADDIE framework, designed and pilot-evaluated an instructional model whose syntax, Visualize, Explore, Diagnose, and Reflect (VEDR), was derived from multimedia learning and cognitive load theory, constructivist exploration, diagnostic problem solving, and feedback-driven reflection, with an Android application as its support system. Needs were analysed with questionnaires from 90 students and three lecturers and an observation of the learning environment; three experts validated the prototype; and one intact class of 40 first-semester students completed a ten-item concept test before and after implementation. Initial understanding of hardware concepts was the students' weakest indicator (72.22%), and facilities and laboratory the lecturers' weakest (66.67%). Experts rated the design of the model's intended effects as highly valid (Aiken's V = 0.972). The class mean rose from 48.6 to 76.3, a moderate class-average normalized gain (Hake) of 0.54. The study contributes a pilot-tested instructional sequence that links each phase to a documented need and a theoretical principle; its effect relative to conventional instruction remains to be tested in a controlled study.
Co-Authors Sulfasyah Sulfasyah Syamsiarna Nappu, Syamsiarna