Abdul Aziz, Muhammad Khumaedi, Samsudin Anis, Eko Supraptono

Development of Practical Tools Using Computer Power Supply for Light Vehicle Electrical System Learning

Introduction

Development of practical tools using computer power supply for light vehicle electrical system learning. Improve light vehicle electrical system learning with a practical tool using a computer power supply. Addresses battery shortages & significantly boosts student outcomes.

Abstract

A common issue in the practical learning of light vehicle electrical systems is the inadequate availability of voltage sources, particularly batteries, in terms of quality and quantity. As a result, most students, after being assessed, receive scores that do not meet expectations. To address this issue, an alternative voltage source is needed to replace the battery, ensuring that the practical learning process for the light vehicle electrical system runs smoothly. This study aims to develop a practical tool using a computer power supply to improve the learning outcomes of the light vehicle electrical system. The research employs the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). The experimental method used involves a pretest and posttest group, comparing the experimental class and the control class, consisting of 72 students. The results show that the practical tool using a computer power supply has a significant impact on the learning outcomes of the light vehicle electrical system, as analyzed through a one-tailed t-test. Based on N-Gain Score calculations, the tool is effective in improving learning outcomes, achieving high-level results. The conclusion of this research is that the practical tool using a computer power supply can replace the role of a battery as a voltage source in light vehicle electrical system practices.

Review

This paper addresses a pertinent and common challenge in vocational education, specifically within the practical learning of light vehicle electrical systems: the chronic shortage and quality inconsistency of traditional voltage sources like batteries. The authors propose an innovative and highly practical solution: repurposing computer power supplies as an alternative. This approach is commendable for its ingenuity, potentially offering a cost-effective and readily available resource that could significantly alleviate resource constraints in educational institutions. The premise of improving learning outcomes by ensuring smooth practical sessions is a critical goal, making the research highly relevant to enhancing the quality of technical education. The methodology employed appears robust and well-suited to the research aims. The use of the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation) provides a structured framework for creating the practical tool, ensuring a systematic approach to its design and refinement. Furthermore, the experimental design, featuring a pretest-posttest comparison between experimental and control classes with a sample size of 72 students, offers a strong basis for evaluating the tool's effectiveness. The abstract indicates the use of appropriate statistical analyses, including a one-tailed t-test and N-Gain Score calculations, which are standard for measuring the impact of educational interventions on learning outcomes. The findings presented are compelling, strongly supporting the efficacy of the developed tool. The report of a "significant impact" on learning outcomes, corroborated by "high-level" N-Gain Scores, provides clear evidence that the computer power supply-based tool successfully addresses the identified problem. The conclusion that this practical tool can effectively replace batteries as a voltage source is a significant contribution, offering a tangible solution that could not only improve student performance and practical skills in light vehicle electrical systems but also provide a more sustainable and accessible resource for educational settings. This research has clear practical implications for vocational training programs seeking to enhance their hands-on learning environments.

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