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All Journal Jurnal Eduscience (JES) JTPPm (Jurnal Teknologi Pendidikan dan Pembelajaran) : Edutech and Intructional Research Journal
Siregar, Indah Lastari
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Pengembangan Instrumen Penilaian untuk Mengukur Kemampuan Pemecahan Masalah Siswa pada Mata Pelajaran IPA SMP Siregar, Indah Lastari; Hendrayana, Aan; Nulhakim, Lukman
JTPPm (Jurnal Teknologi Pendidikan dan Pembelajaran) : Edutech and Intructional Research Journal Vol 11, No 2 (2024): JTPPm (Jurnal Teknologi Pendidikan dan Pembelajaran)
Publisher : http://jurnal.untirta.ac.id/index.php/JTPPm

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jtppm.v11i2.33977

Abstract

Problem-solving skills are a crucial component of critical thinking that students must develop to address the challenges of the 21st century. This study focused on creating a test instrument to assess junior high school students' problem-solving abilities in the context of energy topics in science education. The instrument was designed based on problem-solving indicators adapted from PISA, encompassing skills such as exploring and understanding, representing and formulating, planning and implementing, as well as monitoring and reflecting. The research employed the 4D development model (define, design, develop, disseminate). The instrument was trialed on 30 eighth-grade students from SMPN 2 Rangkasbitung. The validity analysis, conducted using Pearson's moment correlation, identified 16 valid questions out of 20. Reliability testing with Cronbach's Alpha yielded a coefficient of 0.873, demonstrating a high degree of reliability. The findings indicated that the instrument effectively measures students' problem-solving skills, aiding their understanding of energy concepts, fostering critical thinking, and enhancing decision-making abilities in problem-solving contexts. Based on these outcomes, the developed instrument is deemed suitable as an evaluation tool for assessing problem-solving skills in schools.
THE EFFECT OF PBL INTEGRATED WITH PHET VIRTUAL LABORATORY AND SELF-EFFICACY ON STUDENTS’ SCIENCE PROBLEM-SOLVING SKILLS Siregar, Indah Lastari; Hendrayana, Aan; Nulhakim, Lukman
JURNAL EDUSCIENCE Vol 12, No 3 (2025): Jurnal Eduscience (JES), (Authors from Malaysia and Indonesia)
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jes.v12i3.7109

Abstract

Purpose – Mastering critical thinking and problem-solving skills is the primary demand in 21st-century education. However, the evaluation results at SMPN 2 Rangkasbitung showed that students still experienced difficulties in these aspects, which were exacerbated by using conventional learning models. For this reason, this study aims to examine the effectiveness of the Problem-Based Learning (PBL) model integrated with the PhET virtual laboratory and the role of self-efficacy in improving students' problem-solving skills on energy material.Methodology – This study used mixed methods with an explanatory sequential design. In the first stage, a quantitative approach was used to analyze the effect of PBL-PhET and self-efficacy on problem-solving ability, followed by a qualitative approach to explore the quantitative findings further. The sample consisted of 61 randomly selected grade VIII students. Data were collected through problem-solving tests, self-efficacy questionnaires, and lesson observations and analyzed using inferential statistical tests.Findings – The results showed that applying PBL integrated with PhET significantly improved students' problem-solving ability (r = 0.044). Self-efficacy also significantly influences students' problem-solving success (r < 0.001). However, the interaction between the learning model and self-efficacy did not show a significant effect (r = 0.159). The qualitative findings supported the quantitative results by showing that students with high self-efficacy were more active and confident and demonstrated more effective problem-solving strategies during problem-based learning.Significance—This research confirms the importance of integrating innovative approaches and psychological factors in science learning. Teachers and curriculum developers need to consider implementing PBL-PhET and strengthening self-efficacy as effective learning strategies relevant to the demands of the times.
Co-Authors Aan Hendrayana H. Sholeh Hidayat Lukmanul Hakim Nulhakim, Lukman Rudi Haryadi, Rudi Susilowati, Sumaryani Rita