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All Journal Jurnal Pendidikan Matematika Undiksha JURNAL MATEMATIKA STATISTIKA DAN KOMPUTASI P2M STKIP Siliwangi SITEKIN: Jurnal Sains, Teknologi dan Industri Jurnal Riset Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika Al-Jabar : Jurnal Pendidikan Matematika JOIV : International Journal on Informatics Visualization KALAMATIKA Jurnal Pendidikan Matematika PRISMA Faktor Exacta Jurnal Pengabdian Pada Masyarakat Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Numeracy : Jurnal Ilmiah Pendidikan Matematika BAREKENG: Jurnal Ilmu Matematika dan Terapan JMM (Jurnal Masyarakat Mandiri) JTAM (Jurnal Teori dan Aplikasi Matematika) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Indiktika : Jurnal Inovasi Pendidikan Matematika Martabe : Jurnal Pengabdian Kepada Masyarakat KOMPUTIKA - Jurnal Sistem Komputer Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Mathvision : Jurnal Matematika GERVASI: Jurnal Pengabdian kepada Masyarakat MES: Journal of Mathematics Education and Science Jurnal Penelitian Pembelajaran Matematika Sekolah Jurnal Eduscience (JES) Dedikasi: Jurnal Pengabdian Masyarakat Jurnal Pengabdian Masyarakat Borneo Jurnal Absis : Jurnal Pendidikan Matematika dan Matematika Jurnal Magister Pendidikan Matematika (JUMADIKA) Jurnal Abdi Insani Abdimasku : Jurnal Pengabdian Masyarakat Range : Jurnal Pendidikan Matematika Jubindo: Jurnal Ilmu Pendidikan Bahasa dan Sastra Indonesia Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan Journal of Research in Mathematics Trends and Technology JAMBURA JOURNAL OF PROBABILITY AND STATISTICS JUPIKA: JURNAL PENDIDIKAN MATEMATIKA Jurnal Diferensial Jurnal Penelitian Inovatif MATH-EDU: Jurnal Ilmu Pendidikan Matematika Jurnal Algoritma Smart Society: Community Service and Empowerment Journal Fraction: Jurnal Teori dan Terapan Matematika Jurnal Pengabdian Sains dan Humaniora Malcom: Indonesian Journal of Machine Learning and Computer Science IC Tech: Majalah Ilmiah Parameter: Jurnal Matematika, Statistika dan Terapannya Kreativasi: Journal of Community Empowerment Journal of Mathematics, Computation and Statistics (JMATHCOS) Jurnal Jendela Matematika Jurnal Pendidikan MIPA Trigonometri : Jurnal Matematika IC Tech: Majalah Ilmiah
Simarmata, Justin Eduardo
Pendidikan Matematika, Fakultas Keguruan Dan Ilmu Pendidikan, Universitas Timor, Indonesia
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Implementation of Completely Randomized Design (CRD) using R Software to Evaluate Linear Algebra Learning Systems Pasca the Covid-19 Pandemic Simarmata, Justin Eduardo; Chrisinta, Debora
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 22, No 1 (2024): December 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v22i1.22226

Abstract

Completely Randomized Design (CRD) is an experimental design that is applied based on treatment control by researchers. In this study, CRD was applied to evaluate the learning system of the Linear Algebra course pasca the Covid-19 pandemic using R Software. The experiment was carried out as many as 2 tests which were categorized as learning group 1 consisting of 28 students and learning group 2 consisting of 29 students. The treatment given is based on the learning system before the Covid-19 pandemic which was carried out face-to-face, during the pandemic which was carried out online and pasca the pandemic which was carried out in a mixed manner (face-to-face and online). The online learning system during the pandemic provides better student learning outcomes than face-to-face or through a blended learning system. However, this must be further evaluated for environmental conditions and learning models so that they can be applied to the learning system pasca the Covid-19 pandemic.
Pemodelan Persamaan Struktural Kemampuan Akademik dan Karakteristik Individu dalam Mengidentifikasi Ketertarikan Siswa Kelas XII dalam Memilih Perguruan Tinggi Negeri Sopbaba, Merlina; Simarmata, Justin Eduardo; Klau, Kondradus Yohanes
Jambura Journal of Probability and Statistics Vol 5, No 2 (2024): Jambura Journal of Probability and Statistics
Publisher : Department of Mathematics, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjps.v5i2.24914

Abstract

State universities represent a primary option for prospective students aspiring to pursue higher education. During the selection process of a state university, prospective students are influenced by various factors, including academic prowess, individual traits, and personal considerations pertinent to their chosen state university. This study was conducted among 59 twelfth-grade students at SMA Kristen Petra Kefamenanu during the academic year 2023-2024. The methodological framework of structural equation modeling (SEM) was utilized to investigate the interrelationships among these variables. The analysis revealed that students' academic aptitude, comprising elements such as self-assurance, scholastic achievements, active participation, and innovative thinking capabilities, exerts a significant impact on their inclination towards selecting state universities, with a path coefficient of 0.40. Moreover, individual attributes such as autonomy, creativity, integrity, courage, and perseverance also demonstrate a substantial influence, yielding a path coefficient of 0.84 on the inclination towards selecting state universities. These findings underscore the pivotal roles played by both academic capabilities and individual attributes in the decision-making process surrounding state university selection. These findings indicate that both academic ability and individual characteristics play important roles in the decision to choose state universities. These results can serve as a guide for educational institutions and parents to better understand the factors influencing students' decisions in choosing higher education institutions and can help in developing more effective new student admission strategies. 
Pengaruh Model Pembelajaran Berbasis Masalah Terhadap Kemampuan Berpikir Kreatif Matematis Siswa Simarmata, Justin Eduardo; Benu, Kristiani; Delvion, Eduardus Beo Seso
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 9 No. 3 (2024): MATH-EDU: Jurnal Ilmu Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Ilmu Pendidikan, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jipm.v9i3.8639

Abstract

This study was motivated by the low creative thinking abilities of eighth-grade students at SMP Negeri 2 Amanatun Selatan. The purpose of the research was to analyze the effect of the problem-based learning (PBL) model on students' creative thinking skills. The population consisted of all eighth-grade students at SMP Negeri 2 Amanatun Selatan, with one class selected as the experimental group. The study employed a quasi-experimental method using a One-Group Pretest-Posttest Design. Data were collected through tests, and the analysis was conducted using a t-test. The findings indicated that the implementation of the problem-based learning model had a significant impact on students' creative thinking abilities. The significance value obtained was 0.001 (< 0.05), leading to the acceptance of the alternative hypothesis (H₁). Thus, it can be concluded that the problem-based learning model significantly improves the creative thinking abilities of eighth-grade students at SMP Negeri 2 Amanatun Selatan.
PEMANFAATAN MARKETPLACE SEBAGAI UPAYA MENINGKATKAN AKSES PASAR DAN EFISIENSI PENJUALAN KELOMPOK TANI SAPI POTONG Chrisinta, Debora; Sahala, Josua; Banu, Marselinus; Eduardo Simarmata, Justin
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 8, No 1 (2025): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v8i1.389-395

Abstract

Program pengabdian ini bertujuan untuk meningkatkan keterampilan masyarakat dalam memanfaatkan teknologi digital sebagai sarana pemasaran produk melalui aplikasi marketplace di Facebook. Sosialisasi program, pelatihan yang terstruktur, serta pendampingan intensif diberikan untuk membantu mitra sasaran memahami dan menerapkan strategi pemasaran digital yang sesuai dengan kebutuhan mereka. Melalui pendekatan yang berbasis kebutuhan dan penerapan langsung, pengabdian ini tidak hanya meningkatkan keterampilan teknis peserta tetapi juga berkontribusi pada pengembangan metode pendidikan praktis di bidang teknologi digital, khususnya dalam konteks pemberdayaan ekonomi masyarakat. Hasil evaluasi menunjukkan tingkat kepuasan yang tinggi terhadap kegiatan ini, dengan peserta merasa terbantu dalam mengakses pasar digital dan mengembangkan usaha mereka secara mandiri. Selain itu, keberlanjutan program difasilitasi melalui pembentukan komunitas dan jaringan dukungan, yang diharapkan dapat memperkuat dampak jangka panjang program ini. Dengan demikian, pengabdian ini dapat memberikan kontribusi signifikan pada perkembangan ilmu pengetahuan di bidang pendidikan teknologi terapan, khususnya dalam pengembangan keterampilan pemasaran digital di kalangan masyarakat.
STUDY ON THE EFFECTIVENESS OF THE USE OF ARTIFICIAL INTELLIGENCE (AI) ON STUDENT LEARNING OUTCOMES: KAJIAN EFEKTIFITAS PENGGUNAAN ARTIFICIAL INTELLIGENCE (AI) TERHADAP HASIL BELAJAR PESERTA DIDIK Simarmata, Justin Eduardo; Aprianti, Iis; Atencia, Bryant Bennet D.; Nahak, Kristofel Bere; Purnomo, Miko
Jubindo: Jurnal Ilmu Pendidikan Bahasa dan Sastra Indonesia Vol 9 No 3 (2024): Jubindo: Jurnal Pendidikan Bahasa dan Sastra Indonesia
Publisher : Program Studi Pendidikan Bahasa dan Sastra Indonesia, Fakultas Ilmu Pendidikan, Universitas Timor

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

Abstract

The development of information technology, particularly Artificial Intelligence (AI), has opened new opportunities in the field of education, including the teaching of Computer English courses at the University of Timor. This study aims to examine the effectiveness of using AI, particularly ChatGPT, as a learning assistant in improving student learning outcomes. The research method used is a quasi-experimental design, involving 30 students. Data were collected through pretest and posttest assessments, and subsequently analyzed using descriptive and inferential statistics, including the t-test. The results indicate that the implementation of AI has a significant impact on improving student learning outcomes in three evaluation aspects: writing about types of computers, making comparisons, and constructing comparative sentences. The t-test analysis shows that all differences between pretest and posttest scores are significant (p < 0.05). Furthermore, the use of AI also enhances the consistency of student scores, as reflected in the improvement of the minimum, average, and maximum scores in each evaluation section. In conclusion, the implementation of AI, such as ChatGPT, has been proven effective in supporting a more personalized, interactive, and adaptive learning process. This study recommends further development of AI usage in education to create innovative learning that is relevant to the needs of the digital era.
Identifikasi Pengaruh Fasilitas Belajar Terhadap Hasil Belajar Matematika Peserta Didik Menggunakan Pendekatan Structural Equation Modeling Simarmata, Justin Eduardo; Bifel, Maria Gabriela Bait; Mone, Ferdinandus
JURNAL JENDELA MATEMATIKA Vol. 3 No. 01 (2025): Jurnal Jendela Matematika: Edisi Januari 2025
Publisher : CV. Jendela Edukasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57008/jjm.v3i01.1220

Abstract

Penelitian ini bertujuan untuk menganalisis dampak fasilitas belajar terhadap pencapaian hasil belajar matematika siswa di tingkat SMA. Fasilitas belajar yang diteliti meliputi ruang kelas, alat peraga, teknologi pendidikan, serta dukungan infrastruktur lainnya yang tersedia di sekolah. Fasilitas tersebut dipercaya memiliki peran yang signifikan dalam mendukung pembelajaran yang efektif serta meningkatkan hasil belajar peserta didik. Penelitian ini adalah penelitian kuantitatif dengan desain ex-post facto dan menggunakan metode analisis Structural Equation Modeling (SEM) untuk menganalisis hubungan antara fasilitas belajar dan hasil belajar matematika. Dalam penelitian ini, data diperoleh dari 164 peserta didik kelas XII SMA Negeri Taekas Tahun ajaran 2024/2025. Hasil analisis menunjukkan bahwa pengaruh variabel laten fasilitas belajar terhadap hasil belajar, berdasarkan nilai koefisien jalur, sebesar 0,28 yang bersifat positif terhadap Y. Dengan demikian, dapat disimpulkan bahwa terdapat pengaruh langsung fasilitas belajar terhadap hasil belajar matematika peserta didik kelas XII SMA Negeri Taekas.
Implementasi Structural Equation Modeling Dalam Mengetahui Dampak Persepsi Siswa Tentang Matematika Terhadap Hasil Belajar Simarmata, Justin Eduardo; Kono, Metriana Maria; Laja, Yosepha Patricia Wua
JURNAL JENDELA MATEMATIKA Vol. 3 No. 01 (2025): Jurnal Jendela Matematika: Edisi Januari 2025
Publisher : CV. Jendela Edukasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57008/jjm.v3i01.1221

Abstract

Penelitian ini secara umum bertujuan untuk mengetahui bagaiamana pengaruh variabel persepsi siswa tentang matematika terhadap hasil belajar. Pendekatan penelitian ini menggunakan pendekatan kuantitatif dengan jenis penelitian ex-post facto. Populasi dalam penelitian ini adalah seluruh siswa kelas XI SMA Negeri 2 Kefamenanu yang berjumlah 201 siswa. Teknik pengambilan sampel dalam penelitian ini adalah menggunakan teknik sensus di mana seluruh anggota dalam populasi digunakan sebagai sampel. Untuk memperoleh tujuan penelitian ini, Peneliti menggunakan instrumen berupa kuisioner dan dokumentasi hasil belajar siswa. Dalam pengolahan data digunakan metode analisis structural equation modeling (SEM) untuk menganalisis pengaruh persepsi siswa terhadap hasil belajar. Hasil penelitian ini menunjukkan bahwa terdapat pengaruh negatif antara persepsi siswa tentang matematika terhadap hasil belajar. Hal tersebut dapat  diketahui melalui nilai koefisien jalur yang bertanda negatif yaitu sebesar -0.15. Hasil analisis juga menunjukkan bahwa variabel persepsi siswa memiliki pengaruh signifikan dengan koefisien determinasi  sebesar 53%. Hal ini menunjukkan bahwa variabel persepsi siswa berkontribusi sebesar 53% terhadap hasil belajar, sisanya adalah variabel lain yang tidak ada dalam penelitian ini.
Pelatihan Visualisasi Data Bagi Siswa SMKS Katolik Kefamenanu Chrisinta, Debora; Simarmata, Justin Eduardo; Mone, Ferdinandus
Kreativasi : Journal of Community Empowerment Vol. 3 No. 1 (2024): Vol.3 No.1,2024: Juni 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/kreativasi.v2i4.32746

Abstract

The data visualization training program held at SMKS Katolik Kefamenanu was carried out based on the need for a better understanding in managing data, especially among students. This community service aims to provide a deeper understanding of data visualization and technology integration in education. The implementation method includes material preparation, hands-on training sessions, and prates and post-test evaluations. The service results showed a significant increase in students' understanding of data visualization concepts, increased skills in using Microsoft Excel, and increased student interest in data analysis. Students also successfully apply the acquired skills in a practical context.
A Structural Equation Modelling Approach for College Students Financial Literacy Simarmata, Justin Eduardo; Chrisinta , Debora
Journal of Research in Mathematics Trends and Technology Vol. 4 No. 2 (2022): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v4i2.15849

Abstract

This research explores the dynamics of financial literacy among students in shaping future financial well-being. Using Structural Equation Modeling (SEM), it aims to uncover the relationship between financial literacy and students' interest in learning about finance. The data is derived from responses to a questionnaire from 200 students. The research reveals a path coefficient of 0.97 between financial literacy and literacy interest, indicating a strong positive relationship. This implies that 97% of the variation in financial literacy can be explained by literacy interest. Overall, the SEM model demonstrates a significant fit, providing valuable insights for enhancing financial literacy among college students.
Comparative Study of Support Vector Machine and Naive Bayes for Sentiment Analysis on Lecturer Performance Chrisinta, Debora; Simarmata, Justin Eduardo
Journal of Research in Mathematics Trends and Technology Vol. 5 No. 1 (2023): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v5i1.15864

Abstract

This study addresses the challenge of sentiment analysis within the Information Technology study program at Universitas Timor, aiming to compare the performance of Support Vector Machines (SVM) and Naive Bayes (NB) through 100 iterations. The dataset, comprising 21 instances of negative sentiment and 18 instances of positive sentiment, is analyzed using both methods, with accuracy and Area Under the ROC Curve (AUC) serving as key metrics. The sample size consists of 39 instances, and the results indicate significant variability in both accuracy and AUC, emphasizing the sensitivity of the models to dataset characteristics and random initialization. On average, SVM outperforms NB, with an accuracy of 0.5846 compared to 0.5075 and an AUC of 0.5916 compared to 0.4607.
Co-Authors Abi, Roberto Ade Mirza admin pythagoras, admin Agnes L A Halla Agustinus Giovandi Laki Agustinus Giovandi Laki Ahzan, Z.N. Ahzan, Zulkaidah Nur Aloisius Loka Son Amran Shidik, Muhammad Astriani Dewi, Ni Putu Yuni Atencia, Bryant Bennet D Atencia, Bryant Bennet D. Baldemor, Milagros R. Bana, Marten Luter Bano, Elinora Naikteas Bantaika, Aris Benu, Kristiani Benu, Luky Wandika Bernadeta Buik Bete, Hendrika Bete, Maria Erlince Bifel, Maria Gabriela Bait Bone, Dominifridus Cecilia Novianti Salsinha Chrisinta, Debora Debora Chrisinta Dian Grace Ludji Elfrida Nailopo Elin, Lailin Hijriani Elisabet Ersamayori Foeh Elisabeth E Mayori Elizio Victor De Araujo Erlina, Nia Ferdinandus Mone Ferdinandus Mone Fetronela Rambu Bobu Fitriani Fitriani Fitriani Gelu, Leonard Peter Gelu, Leonard Peter Gerhard-Wilhelm Weber Gusti Firda Khairunnisa H. Bete Hendrika Yeni Meti Hijriani, Lailin Hijriani, Lailin Hutubessy, Aditya Ida Bagus Putu Mardana Ida Bagus Putu Mardana Iis Aprianti Jeniana Martha Prima Asa Josua Sahala Juventianus Kenjam Juventianus Kenjam Kehi, Sefrinus Kenjam, Juventianus Klau, Kondradus Yohanes Kondradus Yohanes Klau Kono, Metriana Maria Kristofel Bere Nahak Lailin Hijriani Lidu, Maria Maneno, Regolinda Margareta Rodrigues Gomes Maria Brigita Niis Nana Maria Delviana Mali Maria Naimnule Maria Naimnule Maria Naimnule Marselinus Banu Melkisedik Bukifan Melkisedik Bukifan Merlin Helentina Napitupulu Miko Purnomo Missa, Yeni mone, ferdinandus Moses Timutang Muhammad Amran Shidik Naimnule, Maria Naisau, Angela Cristina Natalia Emanuela Lelboy Nelciana Talan Ni Putu Yuni Astriani Dewi Ni Putu Yuni Astriani Dewi Ni Wayan Sukerti Ni Wayan Sukerti Nia Erlina Nifu, Martha Marsela Nifu, Martha Marsella Oktovianus Mamoh Olo, Maria Regina Pakaenoni, Lusilia Dos Santos Pasaribu, Revi Lestari Patrisius Bauk Peter Gelu, Leonard Pius Thaal, Pius Prudensius Manek Purba, Switamy Angnitha Rita Sila, Vinsensia Ulia S. A. Purba Sanam, Thofilus Sari, Nur Nilam Seko, Herbert Sele, Yunawati Selestina Nahak Siahaan, Meiva Marthaulina Lestari Sila, Vinsensia Ulia Rita Silfester Faentaono Sirait, Debora Sitti Rosnafi’an Sumardi Sopbaba, Merlina Stanislaus Amsikan Switamy Angnitha Purba Taena, Vinsensia Gerosa Talan, Nelciana Tampani, Margarita Tavares, Ricson Thresia Trivict Semiun Ulia Rita Sila, Vinsensia Uskono, Yunitha Centriana Venidora Solo, Maria Fransiska Vinsensia Ulia Rita Sila Wihelmina, Maria Wisrance Winda Ade Fitriya B Wua Laja, Yosepha Patricia Yakoba Yusina Muanley Yohanes Jefrianus Kehi Yuni Astriani Dewi, Ni Putu Zulkaidah Nur Ahzan Zulkaidah Nur Azhan