Effectiveness of the PBLMAR Model in Improving Student Learning Outcomes: An N-Gain Analysis in Air Conditioning Technology Course

Nuzul Hidayat, Wakhinuddin Wakhinuddin, Remon Lapisa, M. Giatman, Ika Parma Dewi, Juli Sardi and Jackly Muriban

Data and Metadata, 2025, vol. 4, 958

Abstract: Introduction: this study aims to evaluate the effectiveness of the Problem-Based Learning model assisted by Mobile Augmented Reality (PBLMAR) in improving student learning outcomes in the Air Conditioning Technology course. The integration of MAR technology is expected to support student-centered learning and enhance conceptual understanding in vocational education settings. Methods: a quasi-experimental method was applied using a one-group pretest-posttest design. Data collection involved pretest and posttest assessments administered to 30 vocational students. The normalized gain (N-Gain) was calculated using Microsoft Excel to measure the increase in students’ cognitive achievement after implementing the PBLMAR model. N-Gain results were interpreted using standard criteria (high, medium, low). Results: the analysis showed that the average N-Gain score was 0.7, which falls into the category, high category. This indicates a significant improvement in student learning outcomes. Additionally, student responses suggested positive engagement and interest in using MAR-based learning media. Conclusions: the PBLMAR model is effective in improving students’ conceptual understanding and engagement in the Air Conditioning Technology course. The use of N-Gain analysis provides clear evidence of the model's impact, supporting its further application in vocational education.

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:dbk:datame:v:4:y:2025:i::p:958:id:1056294dm2025958

DOI: 10.56294/dm2025958

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