Developing an ESP32-Based Temperature Laboratory Instrument to Enhance Undergraduate Students' Science Process Skills
DOI:
10.29303/jossed.v7i2.15994Published:
2026-10-26Downloads
Abstract
This study aims to develop an ESP32 microcontroller-based temperature laboratory instrument that is valid, practical, and effective in enhancing students’ Science Process Skills (SPS). This study employed the Research and Development (R&D) method with the ADDIE instructional design model (Analyze, Design, Development, Implementation, Evaluation). A large-scale pilot test involved 130 undergraduate students enrolled in the Basic Physics course. Data collection was conducted using expert validation sheets, a practicality questionnaire, and a Science Process Skills (SPS) essay test instrument (pre-test and post-test). The test results showed that the developed instrument is highly suitable for use, with an Aiken’s V value of 0.86 (Highly Valid) and a Percentage of Agreement of 92.49% (Reliable). This tool also received a practicality rating of 91.41% from lab assistants and 81.98% from undergraduate students (Highly Practical). Effectiveness testing demonstrated that this tool’s intervention significantly improved SPS, with an average N-Gain of 0.40 (Moderate category). The highest improvements were achieved in the domains of data interpretation (0.49) and observation (0.47), accompanied by a reduction in cognitive load due to the minimization of parallax error. Meanwhile, the low gain in the “hypothesis” domain (0.23) was solely due to the ceiling effect. It can be concluded that this ESP32-based laboratory instrument innovation is highly feasible and robust in accelerating students’ scientific investigation skills in the laboratory
Keywords:
ESP32 Microcontroller Laboratory Instrument Research and Development Science Process Skills Temperature and HeatReferences
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