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Creative problem-solving assessment in fluid mechanics for senior high school students: Instrument validation and reliability analysis using the rasch model Diani, Rahma; Viyanti, Viyanti; Jalmo, Tri; Lengkana, Dewi; Erliana, Intan
Journal of Advanced Sciences and Mathematics Education Vol 5, No 1 (2025): Journal of Advanced Sciences and Mathematics Education
Publisher : CV. FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jasme.v5i1.558

Abstract

Background: Creative Problem-Solving (CPS) is a critical skill in physics education, enabling students to address real-world challenges through innovative and practical approaches. Despite its importance, there is a limited number of reliable and valid instruments specifically designed to assess CPS skills within the context of physics education.Aim: This study aims to develop and prove the validation of a CPS assessment instrument using the Rasch model to ensure its reliability and accuracy in measuring CPS skills in physics education.Method: The research followed the ADDIE development model, which includes analysis, design, development, implementation, and evaluation phases. The instrument, consisting of 20 essay items aligned with CPS indicators, was validated by three experts in physics education. It was then tested on 35 Grade XI students in Lampung Province. Data analysis was performed using the Rasch model through Winsteps software, focusing on fit analysis, reliability, item difficulty distribution, and dimensionality assessment.Results: The instrument demonstrated strong internal consistency, confirming its reliability for assessing CPS skills in physics education. The construct validity was supported by fit analysis, indicating that most items functioned appropriately. However, some items exhibited potential bias and required revision. The dimensionality analysis confirmed that the instrument effectively measured a single underlying construct, ensuring its psychometric robustness. These findings suggest that the developed CPS assessment instrument is a reliable and valid tool for evaluating students’ creative problem-solving abilities in high school physics, particularly in fluid mechanics.Conclusion: This study successfully developed and validated a CPS assessment instrument for high school physics education, demonstrating strong reliability and construct validity. The instrument effectively measures CPS skills, though some items require refinement to ensure fairness and accuracy. Future research should focus on further improving item quality and testing the instrument in diverse educational settings to enhance its applicability and generalizability.
Analysis of the System Thinking Ability of Junior High School Students on the Main Material of the Digestive System Aras, Julio; Jalmo, Tri; Meriza, Nadya
Jurnal Bioterdidik: Wahana Ekspresi Ilmiah Vol 11, No 3 (2023): Jurnal Bioterdidik
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to describe students' systems thinking abilities on the main material of the Digestive System. The subjects of this research were 60 students of Junior High School 8 Bandar Lampung for the 2022/2023 academic year who were selected from a population of 275 students using a cluster sampling technique. This research uses an ex post facto design. System thinking ability data was obtained through description tests which were analyzed descriptively. The results of the research show that students' systems thinking abilities are in the sufficient category for 60% of students and in the deficient category for 40% of students. The highest systems thinking ability is in the indicator of the ability to examine the character of elements with an average value of 34.25 in the sufficient category, while the lowest systems thinking ability is in the indicator of correlating interconnections with an average value of 16.11 in the deficient category. Based on the results of data calculations, it can be concluded that in general students' systems thinking abilities are in the sufficient category.Keywords: system thinking ability, digestive system
Pengembangan Instrumen Penilaian Untuk Mengukur Kemampuan Berpikir Sistem Siswa SMP Pada Materi Pencemaran Lingkungan Johariah, Johariah; Jalmo, Tri; Lengkana, Dewi
JUPE : Jurnal Pendidikan Mandala Vol 8, No 1 (2023): JUPE : Jurnal Pendidikan Mandala (Februari)
Publisher : Lembaga Penelitian dan Pendidikan Mandala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58258/jupe.v8i1.5501

Abstract

Penelitian ini bertujuan untuk mengembangkan dan menghasilkan instrument penilaian yang valid, praktis, dan efektif dalam meningkatkan kemampuan berpikir sistem peserta didik. Desain penelitian menggunakan model Borg and Gall. Tahap uji coba terbatas menggunakan desain penelitian eksperimen bentuk pre-post control group design, dengan jumlah 15 siswa kelas VII di SMPN 1 Terbanggi Besar dan 15 Siswa kelas VII di SMPN 2 Seputih Agung. Subjek uji coba produk menggunakan teknik purposive sampling. Penelitian ini menggunakan dua sekolah di Lampung Tengah. SMPN 1 Terbanggi Besar sebagai kelompok eksperimen dan SMPN 2 Seputih Agung sebagai kelompok kontrol. Kevalidan instrument penilaian hasil pengembangan diperoleh dari hasil validasi ahli pada aspek kesesuaian isi 99,6%, konstruksi 86,6% dan bahasa 84,6%. Kepraktisan instrument penilaian ditinjau dari penilaian keterlaksanaan pembelajaran dengan instrument penilaian, respon pendidik dan siswa. Keefektifan didasarkan pada nilai n-Gain dan effect size tes kemampuan berpikir sistem. Hasil penelitian respon pendidik menunjukkan bahwa Aspek kemenarikan 88%, kebermanfaatan 100% dan keterbacaan 91%. Hasil respon siswa menunjukkan bahwa: Aspek kemenarikan 87%, kebermanfaatan 87% dan keterbacaan 90%. Instrument penilaian untuk meningkatkan kemampuan berpikir sistem dinyatakan valid ditinjau dari aspek isi, konstruksi dan bahasa dengan rata-rata persentase nilai sebesar 97%. Instrument penilaian praktis digunakan untuk meningkatkan kemampuan berpikir sistem siswa ditinjau dari keterlaksanaan pembelajaran dengan rata-rata persentase nilai sebesar 90,42% dengan interpretasi hampir seluruh aktivitas terlaksana serta rata-rata persentase nilai respon siswa dan pendidik sebesar 87% dan 89% yang keduanya berkategori sangat tinggi. Intrumen penilaian efektif meningkatkan kemampuan berpikir sistem dengan nilai rata-rata n-Gain sebesar 0,65 pada kelompok eksperimen dan 0,58 pada kelompok kontrol yang keduanya berkategori sedang. Nilai effect size kelas 0,99 yang menunjukkan bahwa pembelajaran dengan menggunakan instrument penilaian memiliki pengaruh yang signifikan dalam meningkatkan kemampuan berpikir sistem siswa. 
An analysis of creative thinking skills of biology education students at UIN Raden Intan Lampung Puspita, Laila; Abdurrahman, Abdurrahman; Jalmo, Tri; Maulina, Dina; Rosiyanti, Anita; Komarudin, Komarudin
Indonesian Journal of Science and Mathematics Education Vol. 7 No. 3 (2024): Indonesian Journal of Science and Mathematics Education
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijsme.v7i3.23844

Abstract

Creative thinking is a crucial skill that involves generating and synthesizing new ideas by analyzing existing concepts and transforming them into innovative solutions. This ability is particularly important in education, where students must apply theoretical knowledge to real-world problems. However, not all students possess strong creative thinking skills. This study aims to analyze the creative thinking abilities of Biology Education students at UIN Raden Intan Lampung, focusing on 2021. The study evaluates students' creative thinking skills using Torrance's indicators: fluency, flexibility, originality, and elaboration. A qualitative descriptive approach was employed, with data collected through purposive sampling. The findings indicate that Biology Education students fall under the "quite creative" category. Specifically, fluency scored 57%, flexibility 48%, originality 43%, and elaboration 47%, all classified as "quite creative". The results suggest that while students demonstrate moderate creative thinking skills, there is room for improvement. Educators should integrate pedagogical strategies that enhance creativity, such as problem-based learning and open-ended assignments, to foster higher-level creative thinking in biology education. This study highlights the need for further targeted interventions to develop students' creative potential.
Pengembangan e-LKPD Berdiferensiasi Terintegrasi HOTS Melalui Kecerdasan Majemuk Untuk Meningkatkan Kemampuan Berpikir Sistem Simanjuntak, Hanna Benedicta; Lengkana, Dewi; Jalmo, Tri; Abdurrahman
Jurnal Penelitian Pendidikan IPA Vol 11 No 7 (2025): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i7.10376

Abstract

This study aims to develop differentiated electronic student worksheets (e-LKPD) integrated with Higher-Order Thinking Skills (HOTS) and multiple intelligences that are valid, practical, and effective in enhancing students’ systems thinking skills. The research follows the Borg and Gall R&D model. The study population comprised eighth-grade students from SMPN 1 Mesuji in the 2024/2025 academic year. A purposive sampling technique was employed to assign class VIIIA as the experimental group and class VIIIB as the control group. Data collection instruments included need analysis questionnaires, expert validation forms, student and teacher response questionnaires, pretest and posttest items, reflection sheets, and learning implementation observation sheets. Data analysis was conducted using independent sample t-tests on n-Gain scores. The findings revealed that: (1) the e-LKPD was rated as highly valid (95%) by expert reviewers; (2) it was considered highly practical by students (95%) and teachers (100%); (3) it was effective in improving systems thinking skills with a high n-Gain score (0.75) and a large effect size (0.95); and (4) it achieved a very high implementation level (87.19%). These results indicate that the developed e-LKPD is suitable for use in science learning, particularly on the topic of the digestive system, to enhance students' systems thinking skills.