The Effectiveness of EFI Scanner Video Media in Enhancing Understanding of EFI System Diagnostics in Light Vehicle Electrical Maintenance

This study aims to evaluate the feasibility of video media and its effectiveness in enhancing students understanding of using a scanner for diagnosing Electronic Fuel Injection (EFI) systems in the subject of light vehicle electrical maintenance. The research employs a one-group pre-test post-test design. Validation tests conducted by subject matter experts and media experts rated the video media as highly appropriate for instructional use. The average pre-test score was 57.50, which increased to 77.00 in the post-test, resulting in a learning improvement gain of 0.46. Hypothesis testing with α = 0.05 and degrees of freedom (df) = 31 yielded t = 23.49, which is greater than the critical value ttable = 2.04, leading to the rejection of H0. This indicates a significant improvement in students understanding of EFI system diagnostics facilitated by the video media. The effectiveness of the video media in enhancing learning was quantified at 27.69%. However, other contributing factors, such as varying physiological and psychological conditions of learners, environmental influences, infrastructure, and curriculum design, also played a role in the learning outcomes.