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OPTIMIZATION OF THE TWO POINT PROBE METHOD FOR THE CHARACTERIZATION OF PHOTOELECTRIC PROPERTIES OF MATERIALS Boisandi; Nurussaniah
Akrab Juara : Jurnal Ilmu-ilmu Sosial Vol. 10 No. 1 (2025): Februari
Publisher : Yayasan Azam Kemajuan Rantau Anak Bengkalis

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Abstract

This research aims to obtain the electrical characteristics and photoelectric material measured by two point probe method using I-V measurement and to know the photoconductivity of the material measured by two point probe method with the multimeter circuit. Research using experimental method. The activities of research on the design of electrical characterization tools with two point probe method and optimization. Electrical characterization testing is carried out with material conductivity characteristics and compares it with a Elkahfi I-V meter as standar measurement. This result of research can be concluded that two point probe method with multimeter can be used to measure the conductivity and photoconductivity of the material. The results of conductivity measurement of ethanol as test solution using two point probe method is.
Effects of Microlearning Based Science Modules on Conceptual Understanding and Self Regulated Learning: A Quasi Experimental Study in Senior Secondary Schools Hamdani, Hamdani; Marlina, Reni; Nurussaniah; Lathifah, Suci Siti; Aminah Zb
International Journal of Education and Teaching Zone Vol. 5 No. 1 (2026): February 2026 Edition
Publisher : Yayasan Nurul Yakin Bunga Tanjung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57092/ijetz.v5i1.774

Abstract

This study examined the effectiveness of a microlearning-based science module in enhancing students' conceptual understanding and self-regulated learning (SRL). Employing a quasi-experimental non-equivalent control group design, 32 secondary students were equally assigned to experimental (microlearning) and control (conventional instruction) groups. Data were collected through validated conceptual understanding tests, SRL questionnaires, and delayed post-tests to measure retention. Descriptive results showed the experimental group consistently outperformed the control group across all measures, achieving higher mean scores in conceptual understanding (M = 81.38, SD = 6.41 vs. 72.06, SD = 6.87), SRL (M = 82.25 vs. 71.81), and retention (M = 78.94 vs. 69.13). Inferential analysis revealed significant differences in overall conceptual understanding (t = 3.21, p = 0.003) with a large effect size (Cohen's d = 0.80), as well as across specific indicators of basic concepts, conceptual application, and scientific reasoning. These findings indicate that microlearning effectively supports deeper conceptual understanding, learner autonomy, and long-term retention by reducing cognitive load and enabling flexible, self-paced learning, positioning it as a promising instructional approach for strengthening science education quality at the secondary level.