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All Journal Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Jurnal Penelitian Pendidikan IPA (JPPIPA) Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Teknoif Teknik Informatika Institut Teknologi Padang
Rayendra
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Education Engineering Materials Science & Nanotechnology Physics Other

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Optimizing Sensitivity in Machine Learning Models for Pediatric Post-operative Kyphosis Prediction Raja Ayu Mahessya; Dian Eka Putra; Rostam Ahmad Efendi; Rayendra; Rozi Meri; Riyan Ikhbal Salam; Dedi Mardianto; Ikhsan; Ismael; Arif Rizki Marsa
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 9 No 3 (2025): June 2025
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29207/resti.v9i3.6606

Abstract

Post-operative kyphosis represents a significant complication following pediatric spinal corrective surgery, necessitating sophisticated prediction methods to identify high-risk patients. This study developed and evaluated machine learning models for kyphosis prediction using a dataset of 81 pediatric patients by comparing the logistic regression and decision tree approaches. Despite achieving a higher overall accuracy (82%), the logistic regression model failed to identify any kyphosis cases, rendering it clinically ineffective. Conversely, the decision tree model demonstrated superior clinical utility by successfully identifying 33% of kyphosis cases while maintaining 71% accuracy. Feature importance analysis established starting vertebral position as the dominant predictor (importance=0.554), followed by patient age (0.416), with vertebrae count contributing minimally (0.030). The decision tree identified critical thresholds for risk stratification: operations beginning at or above T8-T9, particularly in children aged 5-9 years, carried a substantially elevated kyphosis risk. Our methodological approach emphasizes sensitivity over conventional accuracy metrics, recognizing that missing high-risk patients have greater clinical consequences than unnecessary monitoring. This study demonstrates the capacity of decision tree models to extract clinically meaningful patterns from small, imbalanced surgical datasets that elude conventional statistical approaches.
IMPLEMENTASI INCREMENTAL METHOD PADA RANCANG BANGUN WEBSITE PENERBIT PNP PRESS Ikhbal Salam, Riyan; Ikhsan; Rayendra; Ismael; Eka Putra, Dian; Ramadhani
Jurnal Teknoif Teknik Informatika Institut Teknologi Padang Vol 13 No 1 (2025): TEKNOIF APRIL 2025
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtif.2025.V13.1.1-7

Abstract

PNP Press publisher is one of the publishers in Indonesia which is under the auspices of the Padang State Polytechnic State University. This publisher publishes two publishing models, namely magazines and books. The types of books published at PNP Press are scientific books, texts, and references. Meanwhile, the types of articles published in magazines are popular articles and articles from several columns. With the increasing demand for book and magazine publications at this publisher, a system is needed that can manage the publication process effectively and efficiently. This research aims to design and implement a website that can facilitate the publication and distribution process of magazines and books at PNP Press using the Incremental method. This method was chosen because it can accommodate various needs during the system development process. Using the Incremental Method in building publisher websites has proven capable of producing PNP Press publisher websites that suit user needs and ensure the system can be implemented effectively, namely in the form of books published using the open monograph press (OMP) and magazines using the open journal system (OJS).
ANALISIS PENERAPAN PEMBELAJARAN BERDIFERENSIASI DALAM KURIKULUM MERDEKA DI SMAN 7 PADANG Hikmah, Sri Hikmah Putri; Abna Hidayati; Rayendra; Mutiara Felicita Amsal
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 02 (2025): Volume 10 No. 02 Juni 2025
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i02.25236

Abstract

The study aims to analyze the application of differentiated learning consisting of content differentiation, process differentiation, product differentiation, and learning environment differentiation carried out at SMAN 7 Padang. The method used is Mixed Method with the Concurrent Embedded Strategy model. This model uses quantitative methods and qualitative methods. In this model, there are those who act as quantitative data, namely subject teachers of grade XI phase F of SMAN 7 Padang and students of phase F with a sample size of 15 teachers and 56 students and qualitative data using the Miles and Huberman Model. The results of the study showed that the application of differentiated learning carried out at SMAN 7 Padang on content differentiation was in the "Very Good" category with an average percentage of teachers of 82.50% and students of 81.25%, process differentiation was in the "Good" category with an average percentage of teachers of 80.93% and students of 76.64%, product differentiation was in the "Good" category with an average percentage of teachers of 86.67% and students of 80.63%. and the differentiation of the learning environment is in the "Good" category with an average percentage of teachers of 82.78% and students of 78.13%. Based on these results, it is concluded that overall the implementation of differentiated learning has been going well. However, obstacles were encountered including limited facilities in several classes and there were still teachers who were in the stage of understanding and learning the concept of differentiated learning.
Development of Physics Learning E-Module for Class X High School Students Harahap, Nur Indriati; Hakim, Ramalis; Rayendra; Ridwan
Jurnal Penelitian Pendidikan IPA Vol 10 No 7 (2024): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i7.7548

Abstract

This research aims to determine the validity of the physics e-module for grade X Senior High School students. The type of research used is research and development (R&D) by adopting the ADDIE development model. The stages of the ADDIE development model consist of Analysis, Design, Development, Implementation, and Evaluation. Data analysis was conducted to assess the validity of the physics e-module in three aspects: media, content, and language. Validity was evaluated by six experts: two media experts, two content experts, and two language experts. The results of the validity test of the physics e-module obtained from media experts was 79% with the category "Valid", from content experts was 94% with the category "Very Valid", and from language experts was an average of 90% with the category "Very Valid". It can be concluded that the physics e-module is valid and suitable for use in physics learning for grade X Senior High School students.
Development of Animated Picture Media to Improve Early Reading Skills in First-Grade Elementary School Students Ridhani; Zen, Zelhendri; Darmansyah; Zuwirna; Rayendra
Jurnal Penelitian Pendidikan IPA Vol 12 No 1 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i1.13298

Abstract

Early reading skills serve as the primary foundation for literacy mastery among elementary school students. However, many first-grade students still face difficulties in recognizing letters, forming syllables, and reading simple words. Therefore, it is necessary to develop engaging and interactive learning media. This study aims to develop animated picture media to improve early reading skills in Indonesian language learning for first-grade elementary school students. The research employed a Research and Development (R&D) method using the ADDIE model, which consists of the stages of analysis, design, development, implementation, and evaluation. The research subjects were first-grade students at SD Negeri 05 Batu Taba, with validation conducted by material experts, media experts, and language experts. Data were collected through validation questionnaires, practicality observations, and reading ability tests (pretest and posttest). The results showed that the developed animated picture media achieved a validity level of 91% (very valid), practicality of 94.6% (very practical), and high effectiveness with an N-Gain score of 0.70. These findings indicate that the animated picture media are effective in improving early reading skills while also enhancing students’ learning motivation through enjoyable and interactive learning experiences.
Implementation of Differentiated Learning in Science Subject in Grade V of SD Negeri 03 Geragahan Harianto, Rudi; Rayendra; Bentri, Alwen; Zuwirna
Jurnal Penelitian Pendidikan IPA Vol 12 No 1 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i1.13300

Abstract

The diversity of student characteristics is a challenge for educators in the learning process. Therefore, the ability of teachers to accommodate these differences is a key factor in creating effective and meaningful learning. Differentiated learning has emerged as an adaptive and meaningful approach. Differentiated learning has emerged as an adaptive approach designed to optimally meet students' learning needs. This study aims to describe the implementation of differentiated learning in science subjects in class V of SD Negeri 03 Garagarhan, focusing on three main aspects, namely planning, implementation, and learning assessment. This research uses a qualitative approach with descriptive methods. Data were collected through interviews, observations, and documentation with instruments in the form of interview guidelines, observation guides, and documentation. Data analysis techniques were carried out through the stages of data reduction, data presentation, and drawing conclusions. The implementation of differentiated learning in science subjects in class V of SD Negeri 03 Geragahan has been carried out in a structured and collaborative manner. Planning involves teachers, principals, and parents by considering the learning needs of students from academic and socio-cultural aspects. The implementation begins with a diagnostic assessment and is outlined in a teaching module that adjusts the learning method, media, and environment. Assessment is carried out in a sustainable and adaptive manner. However, this process still faces obstacles such as time constraints, as well as the potential for social jealousy between students. Nevertheless, the school still shows a commitment to realizing inclusive and student-centered learning.
Integrating Deep Learning into STEM-Based E-Modules: Advancing Quality Education (SDG 4) in Junior High School Science Kartina, Dewi; Rayendra; Zen, Zelhendri; Hidayati, Abna
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026): In Progress
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.14035

Abstract

The rapid evolution of digital technology in the 21st century necessitates innovative teaching materials that foster deep conceptual understanding. This study aims to develop and evaluate a STEM-based electronic module (e-module) integrated with a deep learning approach for Grade IX junior high school science, specifically focusing on static and dynamic electricity. Using the Research and Development (R&D) method with the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation), the e-module was designed to incorporate interactive multimedia, STEM-based activities, and deep learning principles—emphasizing understanding, application, and reflection. Results from expert validation (media, material, and language) yielded an average score of 90.73%, indicating very high validity. Practicality testing involving students and teachers resulted in an average score of 91.82%, categorizing the module as very practical. Furthermore, the effectiveness test showed a significant improvement in student learning outcomes, with the average score rising from 62.50 to 85.63 and an N-Gain value of 0.62 (medium category). These findings demonstrate that the STEM-based e-module with a deep learning approach is a valid, practical, and effective tool for enhancing students' conceptual mastery in the digital era.
Empowering 21st-Century Learners: Enhancing Digital Literacy Through E-Literate Integration in Science Education Rayendra; Hardika, Jodi
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026): In Progress
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.14343

Abstract

Digital literacy is a critical 21st-century competency that must be integrated into science education to achieve Sustainable Development Goal 4 (Quality Education). This study evaluates the effectiveness of the E-Literateapplication in enhancing students' digital literacy within the specific context of vibration and wave topics. Using a quasi-experimental pretest–posttest control group design, this research involved 60 grade VIII students divided into experimental and control groups. The research instrument utilized a performance-based digital literacy test (comprising case studies on information access, evaluation, processing, and digital ethics) to measure actual proficiency rather than mere self-perception. Data were analyzed using normalized gain (N-Gain), independent t-test, and Cohen’s effect size. The results indicated a significant difference in digital literacy improvement between the two groups (p < 0.05). The experimental group, which utilized the E-Literate app to simulate wave phenomena and verify digital information, achieved a very large effect size (d = 4.63). These findings demonstrate that the E-Literate application is not only an effective medium for mastering abstract science concepts like vibrations but also a powerful tool for bridging the digital skills gap in secondary education.
Co-Authors Abna Hidayati Arif Rizki Marsa Darmansyah Dedi Mardianto Dian Eka Putra Eka Putra, Dian Harahap, Nur Indriati Hardika, Jodi Hikmah, Sri Hikmah Putri Ikhbal Salam, Riyan Ikhsan Ismael Kartina, Dewi Mutiara Felicita Amsal Raja Ayu Mahessya Ramadhani Ramalis Hakim Ridhani Ridwan Rostam Ahmad Efendi Rozi Meri Rudi Harianto, Rudi Zen, Zelhendri Zuwirna