Portal Jurnal Elektronik Universitas Negeri Malang
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Manifold Learning and Undersampling Approaches for Imbalanced Class Sentiment Classification
Full text linkMovie reviews are crucial in determining a film's success by influencing audience decisions. Automating sentiment classification is essential for efficient public opinion analysis. However, it faces challenges such as high-dimensional data and imbalanced class distributions. This study addresses these issues by applying manifold learning techniques, Principal Component Analysis (PCA) and Laplacian Eigenmaps (LE) to reduce data complexity and undersampling strategies (Random Undersampling (RUS) and EasyEnsemble) to balance data and improve predictions for both sentiment classes. On reviews of The Raid 2: Berandal, EasyEnsemble achieved the highest average G-Mean of 0.694 using Term Frequency-Inverse Document Frequency (TF-IDF) features with a linear kernel without dimensionality reduction. RUS provided balanced but inconsistent results, while Review of Systems (ROS) combined with PCA (85% variance cumulative) improved predictions for negative reviews. Laplacian Eigenmaps were effective for negative reviews with 500 dimensions but less accurate for positive ones. This study highlights EasyEnsemble's superior performance in addressing the class imbalance, though optimization with manifold learning remains challenging
Mapping students' perceptions of mathematics learning: a principal component analysis study
Full text linkThis study investigated the multidimensional landscape of students' perceptions of mathematics learning using principal component analysis (PCA). Data were collected from 102 high school students (grades 9-12, mean age 16.2 years) in Indonesia. The survey, adapted from validated scales including the Fennema-Sherman Mathematics Attitudes Scales and the Attitudes Towards Mathematics Inventory, assessed various aspects of mathematics learning perceptions. Analysis revealed fifteen initial components that were subsequently consolidated into two major factors. The first factor encompassed variables related to external and environmental aspects: learning interest, parental support, motivation, difficulties, resources, school facilities, approaches, classrooms, materials, and methods. The second factor comprised internal and cognitive elements: conceptual understanding, self-confidence, learning models, anxiety, and techniques. The PCA results highlight the complex interplay between cognitive, affective, and contextual factors in mathematics learning. The findings suggest that interventions should adopt a holistic approach, addressing both environmental and cognitive dimensions. This research contributes to educational practice by identifying key areas for targeted intervention while demonstrating the effectiveness of PCA in understanding complex educational phenomena. Future studies could explore these factors' generalizability across different educational contexts and their longitudinal evolution
Pengembangan komik digital berbantuan Instagram materi perlawanan rakyat Singaparna terhadap Jepang pada siswa kelas XI SMAN 4 Kediri
Full text linkAbstract This research aims to produce digital comics assisted by Instagram social media as a learning media product, designed based on a needs analysis that identified the limited use of instructional media. The focus of the research is to produce and test the validity of the media in delivering material on the Singaparna people's resistance against Japanese occupation in the 11th-grade history class at SMAN 4 Kediri. The research utilizes the R&D method developed by Sugiyono (2015), which includes: (1) identifying potential and problems, (2) data collection, (3) product design, (4) design validation, (5) design revision, (6) product testing, (7) produc t revision, (8) usage trial, (9) product revision, and (10) mass production. The results show that the media is highly valid, with a 93 % score from material experts and 81 % from media experts. Testing on students showed a 90 % result in the small group and 86 % in the large group. Based on the validity and feasibility tests, this Instagram-based digital comic is deemed highly suitable for use in history teaching at SMAN 4 Kediri.Abstrak Penelitian ini bertujuan untuk menghasilkan komik digital berbantuan media sosial Instagram sebagai produk media pembelajaran, yang dirancang berdasarkan analisis kebutuhan, yaitu minimnya penggunaan media pembelajaran. Penelitian ini menghasilkan dan menguji validitas media dalam menyampaikan materi tentang perlawanan rakyat Singaparna terhadap pendudukan Jepang di kelas XI SMAN 4 Kediri. Penelitian menggunakan metode R&D yang dikembangkan oleh Sugiyono (2015), yang meliputi: (1) potensi dan masalah, (2) pengumpulan data, (3) desain produk, (4) validasi desain, (5) revisi desain, (6) uji coba produk, (7) revisi produk, (8) uji coba pemakaian, (9) revisi produk, dan (10) produksi massal. Hasil penelitian menunjukkan media ini valid, dengan persentase 78% dari ahli materi dan 80% dari ahli media. Pengujian pada siswa menunjukkan hasil 84% pada kelompok kecil dan 85% pada kelompok besar. Berdasarkan uji validitas dan kelayakan, komik digital berbasis Instagram ini dinyatakan sangat layak digunakan dalam pembelajaran sejarah di SMAN 4 Kediri.
KRABBY KRONICLE – A COMEDIC EPISODE OF SPONGEBOB SQUAREPANTS TO CRITICIZE THE PRACTICE OF YELLOW JOURNALISM
Full text linkCartoons as a medium of social criticism have been increasingly popular for the last decades. Famous cartoons targeting adult audiences like South Park and The Simpsons heavily tackle the politics and events in the USA. Children’s cartoons can be equally critical and political. However, scant scholarship still explores the political dimension of children's cartoons. This study aims at filling the scholarly lacuna by looking at how SpongeBob SquarePants, a cartoon dedicated to children, conveys its political message, specifically examining the Krabby Kronicle episode (2008); this article demonstrates that the episode heavily criticizes the practice of yellow journalism through the use of allegory. The allegory is utilized in the narrative to deliver the political message as they try to compare the practice of yellow journalism in the Krabby Kronicle episode and the actual practice of yellow journalism. The allegory is supported by the cinematic (mise-en-scene) aspect of the episode to make the narrative not only entertaining but also make the message believable
The Effect of Conformity and Financial Literacy on Impulsive Buying Behavior
No full textThis study aims to see whether conformity and financial literacy affect impulsive buying behavior among students at the State University of Malang. The approach is quantitative with a correlational model. The population in the study were students at State University of Malang. The sampling technique used was purposive sampling with a total sample of 228 people. Research data were collected through conformity scales, financial literacy scales, and impulse buying scales. The data analysis technique uses multiple linear analysis, where conformity and financial literacy results have a positive effect on impulsive buying behavior. In the F test, the results of conformity and financial literacy have a simultaneous positive relationship to impulsive buying behavior with a significance of 0.00
Manajemen Etno STEAM Bagi Suku Amarasi dalam Pegelolahan Warna Kain Tenun Ikat Sebagai Dasar Pendidikan Karakter
Full text linkAbstract: This research focuses on ethno STEAM management in the processing of NTT Amarasi ikat woven cloth and the value of character education for the Amarasi community. The problems in this research are 1). How does ethno STEAM management work in the processing of Amarasi ikat woven fabric? 2). What is the value of character education for the community from the Amarasi ikat woven fabric processing process? The type of research in this research is descriptive qualitative. This research will describe, describe, explain and explain in the form of words and sentences the STEAM concept of the Amarasi tribe in making Ikat Woven Cloth by several groups of craftsmen in the Teunbaun sub-district, Amarasi District, Kupang Regency, NTT. The samples for this research were 3 (three) groups of Amarasi ikat weaving craftsmen in Amarasi District, Kupang Regency, East Nusa Tenggara. The results of this research are 1). The process of managing ikat woven cloth applies the STEAM concept, namely the Science Concept that has been used by the Amarasi tribe in making ikat woven cloth. The technological concept developed by weaving craftsmen for the Amarasi tribe is: roki ana roki ko'u for untangling threads and for weaving. The concept of Engineering, for the Amarasi tribe, is engineering in spinning and dyeing threads and engineering of the tools used in weaving activities which are divided into three, namely moleng for spinning thread, roki ana for tying threads (making motifs) and also roki ko'u for unraveling threads. and for weaving. Concept art in geometric decoration, flora decoration and fauna decoration. The concept of mathematical science applied in the Amarasi tribe is counting the number of threads spun, the number of sticks, making thread rolls, counting the number of strands of thread in the process of tying the thread to form the desired motif. 2). Character education from the ikat woven fabric processing process, namely; values in life, the value of knowledge, social skills, and identity formation.
Keywords: Ethno STEAM, Local Wisdom, Character Education
Abstrak: Penelitian ini difokuskan pada pada manajemen etno STEAM pada pengolahan kain tenun ikat Amarasi NTT dan nilai pendidikan karakter bagi masyarakat Amarasi. Masalah dalam penelitian ini adalah 1). Bagaimana manajemen etno STEAM dalam proses pengolahan kain tenun ikat Amarasi ? 2). Bagaimana nilai pendidikan karakter bagi masyarakat dari proses pengolahan kain tenun ikat Amarasi ?. Jenis penelitian pada penelitian ini, yaitu deskriptif kualitatif. Penelitian ini akan menggambarkan, menguraikan, menjelaskan dan menerangkan dalam bentuk kata dan kalimat mengenai konsep STEAM pada suku Amarasi dalam pembuatan Kain Tenun Ikat oleh beberapa kelompok pengrajin di kelurahan Teunbaun Kecamatan Amarasi Kabupaten Kupang, NTT. Sampel penelitian ini adalah 3 (tiga) kelompok pengrajin tenun ikat Amarasi di Kecamatan Amarasi Kabupaten Kupang Nusa Tenggara Timur. Hasil penelitian ini adalah 1). Proses pengelolaan kain tenun ikat menerapkan konsep STEAM yaitu Konsep Sains sudah digunakan oleh suku Amarasi dalam pembuatan kain tenun ikat. Konsep Teknologi yang dikembangkan oleh perajin tenun untuk suku Amarasi yaitu: roki ana roki ko’u untuk mengurai benang dan untuk menenun. Konsep Engineering, bagi suku Amarasi yaitu rekayasa dalam pemintalan dan pewarnaan benang dan rekayasa alat-alat yang digunakan dalam aktivitas menenun terbagi
menjadi tiga yaitu moleng untuk memintal benang, roki ana untuk mengikat benang (membuat motif) dan juga roki ko’u untuk mengurai benang dan untuk menenun. Konsep seni dalam ragam hias gemetris, ragam hias flora dan ragam hias fauna. Konsep Ilmu matematika yang diterapkan
dalam suku Amarasi yaitu menghitung banyaknya pintalan benang, jumlah lidi, membuat gulungan benang, menghitung banyaknya helai benang pada proses ikat benang untuk membentuk motif yang diinginkan. 2). Pendidikan karakter dari proses pengolahan kain tenun ikat yaitu; nilai dalam kehidupan, nilai pengetahuan, keterampilan sosial, dan pembentukan identitas.
Keywords: Etno STEAM, Kearifan Lokal, Pendidikan Karakte
Three Generations Under One Roof? : A Study of Interhousehold Transfers Among Sandwich Generation in Indonesia
Full text linkEmpirical studies show some negative effects that arise in sandwich generation households. Even the negative impact of the sandwich generation raises the behavior that they want to leave the house. However, the empirical studies only measure sandwich generation if the parents live in the households, so it is necessary to recalculate sandwich generation households in Indonesia through an interhousehold transfer mechanism. This study examines interhousehold transfer differences among sandwich-generation households between parents, siblings, and others in Indonesia. Using Indonesian Family Life Survey (IFLS) 2014, this study found that 4.539 or 28,6 percent of households are classified as the sandwich generation, both if the elderly live in the household and the elderly doesn’t live in the household. Tobit regression analysis shows that non-one-roof sandwich generation households spend an interhousehold transfer 56,4 percent higher than one-roof sandwich generation household
Implementation of Zone-Based Student Admission (PPDB) Through Website in Purwakarta: Challenges and Benefits
No full textAbstract: This study investigates the implementation of the Zone-Based Student Admission (PPDB) System through a website in Purwakarta, Indonesia, highlighting the challenges and benefits of this educational transformation. Amid demographic changes, economic shifts, and evolving educational priorities, reforming the student admission process has become an urgent necessity. The challenges in its implementation include adaptation to change, capacity building, and technical infrastructure. Conversely, the webbased PPDB system offers multiple advantages. It promotes equity and fairness by providing equal opportunities, especially for marginalized communities, enhances transparency through easily accessible admission rules, real-time updates, and consistent procedures, simplifies student enrollment with automated processes, and reduces administrative costs through streamlined procedures. This study utilizes a literature review approach, drawing from various sources such as reports and articles that focus on the challenges and benefits associated with the PPDB system in Purwakarta and in Indonesia in general. In conclusion, despite the challenges, the implementation of the webbased PPDB system in Purwakarta represents a significant step towards a more equitable and efficient educational system. Carefully navigating the challenges and leveraging the system's advantages promises a more inclusive, transparent, and efficient educational landscape in Purwakarta.
Keywords: Zone-Based Admission, Website Implementation, Purwakarta Education
IMPROVEMENT OF STUDENTS' CRITICAL THINKING SKILLS AS AN IMPACT OF THE APPLICATION OF THINK TALK WRITE ON EARTH AND SOLAR SYSTEM
Full text linkThis research aimed to determine whether the Think Talk Write model increased students' critical thinking skills regarding the earth and solar system. A quasi-experimental research design was used, specifically Nonequivalent Control Group Design. The study was conducted at Al-Kholiliyah Bangkalan Middle School during the 2023/2024 academic year, involving all class VII students. The VII-A cohort served as the experimental class, where the Think Talk Write model was implemented, while the VII-B cohort served as the control class, where direct instructional method was used. Purposive sampling was employed to select the sample groups. The N-Gain Score test was utilised to analyze the improvement in critical thinking skills. The results show a significant increase in critical thinking skills among students in the experimental class, with 100% achieving an improvement categorized as medium. In contrast, the control class showed only 7.14% improvement in medium category, with 85.71% of students falling into the low improvement category
Pengembangan E-LKPD Interaktif Berbasis PBL Untuk Meningkatkan Kemampuan Pemecahan Masalah Matematis Materi Trigonometri Kelas X
Full text linkThe purpose of this written research is to identify the features of interactive E-LKPD based on problem-based learning that have valid, practical, and effective properties in improving the mathematical problem solving ability of high school students in grade X on trigonometry material. The ADDIE development model is applied in the development of interactive E-LKPD through the utilization of the Liveworksheet website. The practicality test is carried out using UEQ (User Experience Questionnaire), the validity and suitability test of the media is carried out using the LORI assessment questionnaire, and the effectiveness test is carried out by assessing the completeness of the problem-solving ability test. The validity test of the material and the feasibility of the media uses the LORI assessment questionnaire, the practicality test of the material uses the UEQ , and the effectiveness test uses the completeness of the problem-solving ability test. The feasibility test of the material with very strict requirements. The feasibility test of the media has very high standards. The very good criteria for the practicality test are given to teachers and students of grade X of SMA Negeri 1 Tabanan including questionnaires in each area. The effectiveness of the interactive E-LKPD developed is very good, based on the effectiveness test.
Abstrak
Tujuan penelitian tertulis untuk mengidentifikasi fitur-fitur E-LKPD interaktif berbasis problem based learning dengan memiliki sifat-sifat valid, praktis, serta efektif dalam meningkatkan sebuah kemampuan pemecahan masalah matematika siswa SMA kelas X pada materi trigonometri. Model pengembangan ADDIE diterapkan dalam pengembangan E-LKPD interaktif melalui pemanfaatan website Liveworksheet. Uji praktikalitas dilaksanakan dengan menggunakan UEQ (User Experience Questionnaire), uji validitas serta kesesuaian pada media dilaksanakan dengan menggunakan angket asesmen LORI, dan uji efektivitas dilaksanakan dengan menilai kelengkapan tes kemampuan pemecahan masalah. Uji validitas materi serta kelayakan media menggunakan angket penilaian LORI, uji kepraktisan materi menggunakan UEQ, serta uji keefektifan menggunakan ketuntasan tes kemampuan pemecahan suatu masalah. Uji kelayakan materi dengan persyaratan yang sangat ketat. Uji kelayakan media memiliki standar yang sangat tinggi. Kriteria sangat baik pada uji kepraktisan diberikan pada guru dengan siswa kelas X SMA Negeri 1 Tabanan meliputi angket disetiap area. Keefektifan E-LKPD interaktif yang dikembangkan sangat baik, berdasarkan uji keefektifa