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Declined MIREJ: Multidisciplinary Innovation Research Journal

Perbandingan Kualitas Clustering antara Algoritma K-Means dan DBSCAN dalam Segmentasi Pelanggan Produk Digital

Muhamad Alip, Fani Laraswati, Ahwa Ramadan

Segmentasi pelanggan merupakan strategi penting dalam menganalisis pola konsumsi dan perilaku pengguna dalam berbagai sektor industri, termasuk layanan digital. Dengan kemajuan teknologi dan meningkatnya volume data yang tersedia, organisasi kini membutuhkan metode analisis data yang mampu mengelompokkan pelanggan secara efisien dan bermakna. Penelitian ini bertujuan untuk melakukan perbandingan antara dua algoritma clustering populer, yaitu K-Means dan DBSCAN (Density-Based Spatial Clustering of Applications with Noise) dalam konteks segmentasi pelanggan berbasis atribut numerik yang diperoleh dari data interaksi dan transaksi digital. K-Means, yang bersifat partisional dan bergantung pada jumlah klaster yang ditentukan di awal, dievaluasi melalui pendekatan Elbow Method dan Silhouette Score untuk menentukan nilai K yang optimal. Di sisi lain, DBSCAN yang berbasis kepadatan tidak memerlukan penentuan jumlah klaster sebelumnya dan mampu mengidentifikasi outlier atau noise secara otomatis, namun sangat bergantung pada pemilihan parameter epsilon (ε) dan minimal sampel. Data yang digunakan dalam penelitian ini adalah data pelanggan dari sebuah layanan digital, terdiri dari atribut seperti umur pengguna, frekuensi interaksi, dan jumlah pengeluaran. Seluruh data melalui proses pembersihan, normalisasi, dan rekayasa fitur sebelum dilakukan klasterisasi. Hasil penelitian menunjukkan bahwa algoritma K-Means menghasilkan lima klaster utama dengan distribusi yang lebih merata, sedangkan DBSCAN hanya membentuk satu klaster dominan dengan sejumlah data yang diklasifikasikan sebagai noise, menandakan adanya perbedaan sensitivitas terhadap distribusi data. Evaluasi kualitatif dilakukan menggunakan metrik Silhouette Score yang memperlihatkan nilai 0.32 untuk K-Means dan nilai yang sangat rendah untuk DBSCAN, menunjukkan kualitas cluster yang kurang optimal dalam skenario ini. Penelitian ini menegaskan bahwa tidak ada satu algoritma clustering yang secara universal unggul, melainkan pemilihannya sangat bergantung pada karakteristik data, kebutuhan segmentasi, dan tujuan analisis. Implikasi praktis dari studi ini adalah pentingnya memahami kekuatan dan keterbatasan masing-masing algoritma dalam konteks implementasi nyata, khususnya dalam pengelolaan strategi personalisasi dan retensi pelanggan berbasis data.

Declined MIREJ: Multidisciplinary Innovation Research Journal

PEMANFAATAN INTERNET OF THINGS (IOT) DAN WEB OF THINGS (WOT) DALAM PENDIDIKAN (2020-2025)

Ttin Agustin

Penelitian ini mengkaji integrasi teknologi Internet of Things (IoT) dan Web of Things (WoT) dalam sektor pendidikan selama periode 2020 hingga 2025. Kajian ini dilakukan melalui telaah sistematis terhadap 25 artikel yang terindeks Scopus guna mengeksplorasi bagaimana teknologi tersebut mendukung lingkungan pembelajaran cerdas (smart learning environments), instruksi yang dipersonalisasi (personalized instruction), serta penerapan laboratorium jarak jauh (remote laboratory applications). Temuan menunjukkan bahwa IoT dan WoT semakin banyak digunakan untuk meningkatkan efisiensi, keterlibatan, dan aksesibilitas pembelajaran. Tema utama yang diidentifikasi meliputi kelas adaptif, pemantauan akademik, keamanan biometrik, dan personalisasi berbasis data. Meskipun teknologi ini menawarkan banyak manfaat, tantangan seperti interoperabilitas, kesiapan infrastruktur, dan literasi digital masih menjadi hambatan. Studi ini menekankan pentingnya validasi empiris, pelatihan guru, serta dukungan kebijakan untuk mewujudkan transformasi pendidikan yang berkelanjutan dan inklusif.

Declined JEES: Journal of Education and Educational Sciences

Exploring the Relationship between Learning Motivation, Parental Support, and Speaking Skills in Young English Learners

Najwa Sausan

This research explores the interplay between learning motivation, parental support, and English speaking proficiency among upper secondary students learning English in an EFL contextThis study used a quantitative approach with a correlational method, and analyzed the data through Partial Least Squares Structural Equation Modeling (PLS-SEM). Data were obtained from 180 students aged 15 to 18 years old using a structured questionnaire and teacher assessment of speaking ability. The findings reveal that learners' motivation to study significantly influences the extent of parental support they obtain. while parental support shows a strong positive impact on students’ speaking abilities. Interestingly, motivation by itself does not directly enhance speaking performance, implying that external support is essential to convert internal drive into verbal language outcomes. These results show that parental involvement plays an important role in improving students' speaking skills, and emphasize that student motivation needs to be supported by a supportive family environment. The study provides practical insights for educators and parents in fostering English language development through a balance of intrinsic and extrinsic factors.

Declined MIREJ: Multidisciplinary Innovation Research Journal

The Role of Enjoyment in Mediating the Effect of Motivation on Students' Attitudes toward Learning English

Kevin Herdian Romdhoni

This research explores how motivation and enjoyment are associated with students’ perspectives on learning English in secondary education. Adopting a quantitative methodology with data collected from 240 learners, the study applied Partial Least Squares Structural Equation Modeling (PLS-SEM) to assess whether enjoyment plays a mediating role between motivation and attitude. The analysis revealed that motivation has a significant impact on both enjoyment and learners' attitudes toward English learning, reinforcing its foundational importance in language acquisition. In contrast, enjoyment was found to have no significant direct effect on attitude and did not function as a mediator in the model. These outcomes highlight that although enjoyment can enrich the educational experience, it may not directly influence how students perceive English as a subject. This research adds to the understanding of second language learning by underlining the primary influence of motivation and provides actionable recommendations for educators to focus more on cultivating motivational aspects rather than depending solely on affective experiences.

Declined MIREJ: Multidisciplinary Innovation Research Journal

The Role of Digital Media Exposure in Shaping Grammar Accuracy and Reading Comprehension of EYL Students

Mohamad Ilham Maulana

This research investigates how digital media exposure contributes to the development of grammar accuracy and reading comprehension in English Young Learners (EYL). With digital technologies becoming a regular aspect of children's everyday lives, it is crucial to examine their educational impact, particularly in relation to language acquisition. A quantitative methodology was adopted involving 240 EYL students who participated by completing a structured questionnaire. The data were analyzed through Multivariate Analysis of Variance (MANOVA) to assess the simultaneous effects of digital media exposure on grammar accuracy and reading comprehension. The findings demonstrate that digital media usage significantly affects both grammar and reading performance. Descriptive statistics revealed a positive correlation, suggesting that greater exposure aligns with improved language outcomes. The instruments used were confirmed to be valid and reliable. MANOVA results reinforced the hypothesis by showing a statistically significant multivariate influence of digital media. These findings emphasize the benefit of incorporating digital media that is suitable for children's developmental stages in fostering their language proficiency, especially in grammar and comprehension. The study advocates for teaching strategies that effectively integrate technology and recommends further investigation into the types and quality of media utilized in language instruction.

Declined JEES: Journal of Education and Educational Sciences

The Influence of Teachers’ Perception of ‘English for Nusantara Grade VIII’ Textbook on Teaching Practices and Students’ Engagement in English Class

Nadzira Robbani, Nazwa Auliyah, Anggis Bernadeta

This study examines the influence of teachers' perception of the English for Nusantara Class VIII textbook on teaching practices and student involvement in English learning using the Partial Least Squares Structural Equation Modeling (PLS-SEM) method. Data was collected from 30 English teachers through a structured questionnaire. The results showed that although the direct influence of teachers' perceptions on student engagement was relatively low, it significantly influenced teaching practices which in turn had a strong impact on student engagement. Indirect effects (β = 0.429) confirmed the mediating role of teaching practices. This model explains 86.2% of student engagement variance, which shows high predictive power. Although the SRMR value (0.125) slightly exceeded the ideal threshold, the overall suitability of the model remains acceptable, suggesting that effective textbook implementation through good teaching practices is essential to increase student engagement.

Declined JEES: Journal of Education and Educational Sciences

Gamified Learning in ELT: Investigating the Impact of Duolingo on Students’ Motivation and Engagement

mazaya tari karamina ariska

This study investigates the impact of gamified learning, specifically through Duolingo, on students' motivation and engagement in English Language Teaching (ELT) within Indonesian higher education. Utilizing a quantitative design, data were collected from 246 university students via validated questionnaires assessing Duolingo usage, motivation, and engagement. Findings reveal significant positive influences of both gamified learning and Duolingo usage on students' motivation and engagement. Descriptive statistics showed high mean scores across these variables, indicating a strong positive perception and correlation. Homogeneity tests confirmed consistent data patterns. Multiple regression analysis (R² = 0.975, p < 0.001) demonstrated that 97.5% of the variance in motivation and engagement is explained by these factors, with both gamified learning and Duolingo usage showing highly significant positive effects. These results emphasize the critical role of integrating gamification into ELT to foster intrinsic interest and active participation. The study concludes that gamified platforms like Duolingo effectively enhance students' motivation and engagement in English acquisition, advocating for their strategic incorporation to create more enjoyable and effective learning experiences.

Declined JEES: Journal of Education and Educational Sciences

Perceived Readability of Model Paragraphs: Junior High EFL Learners in Cirebon’ Insights into Lexical, Structural, and Contextual Factors

Yulia Nurahayu

This research investigates junior high school (SMP) learners of English as a Foreign Language (EFL) in Cirebon and how they receive the factors related to readability of model paragraphs of writing lesson. Writing model paragraphs are commonly used materials in writing instruction to help students understand what good paragraphs look like, but the success of this approach depends on whether students perceive and understand the content, language, and structure of the paragraphs. Based on the quantitative approach of the descriptive survey method, the questionnaires were addressed to 279 students of junior high school at some public and private school in Cirebon, West Java taken by purposive sampling. The data were examined through the use of descriptive statistical analysis and SEM-PLS techniques. In the analysis, 74% of students had trouble understanding model paragraphs with rare vocabulary, and 66% of the students mentioned that the sentence structure was long and complex. By contrast, 82 percent of students reported that it was easier to understand paragraphs that had simple language, clear idea structure and relevancy to everyday life. SU of the model paragraphs was most influenced by Readability Contribution (lexical and structural) ($\\beta = 0.42, p\

Declined JEES: Journal of Education and Educational Sciences

THE INFLUENCE OF TECHNOLOGY UTILIZATION AND STUDENT PERCEPTIONS ON ENGLISH LEARNING OUTCOMES

Tantri Mariana, Anna Febriana, Haning Ditasuri

This study explores the influence of technology utilization and student perceptions on English language learning outcomes among university students in Cirebon, Indonesia. As educational institutions increasingly adopt digital platforms and resources, understanding the effectiveness and psychological reception of these tools becomes crucial. Using a quantitative approach and SmartPLS analysis on survey data from 60 respondents, this study evaluates both the measurement and structural models. The findings indicate that student perceptions have a strong and statistically significant impact on learning outcomes (path coefficient = 0.674), while technology usage contributes positively but less substantially (path coefficient = 0.187). Descriptive analysis also revealed that although students generally have access to technological tools, they still face infrastructural challenges that may hinder their optimal use. The study confirms that psychological and emotional factors, including motivation, confidence, and perceived relevance of English, play a dominant role in academic success. The results support the integration of learner-centered teaching strategies and equitable technology access as a dual framework for enhancing English language education in Indonesia. Implications for educators, institutions, and policymakers are discussed, with emphasis on emotional engagement, inclusive policy design, and localized implementation strategies.

Declined MIREJ: Multidisciplinary Innovation Research Journal

Learning motivation and it’s impact on grammar and vocabulary proficiency in EFL learners

ahmad fadil fadilfamiliy

This study investigates the effect of learning motivation on grammar accuracy and vocabulary mastery among EFL university students. Recognizing grammar and vocabulary as foundational elements of language proficiency, the research emphasizes the role of motivation as a key psychological factor influencing language acquisition. Utilizing a quantitative explanatory design, data were collected from 240 students via structured questionnaires. Multivariate Analysis of Variance (MANOVA) was employed to analyze the influence of learning motivation—measured through intrinsic and extrinsic indicators—on two dependent variables: grammar accuracy and vocabulary mastery. The findings reveal a statistically significant impact of motivation on both linguistic competencies. Students with higher motivation demonstrated better grammatical accuracy and a broader lexical repertoire. These results highlight the pivotal role of motivation in language learning and offer practical implications for educators to integrate motivational strategies into EFL instruction.

Declined JEES: Journal of Education and Educational Sciences

The Influence of Social Responsibility and Community Engagement on Students’ Volunteer Motivation in Educational Programs

Mar'atu Nafilah, Nasya Dinda Afrilla, Charmelia Nuraini

The purpose of this study is to examine how students' motivation to engage in volunteer work inside educational programmes is impacted by social responsibility and community involvement. Purposive sampling was utilised to pick 248 high school students as respondents in a quantitative study. The questionnaire instrument was created using theoretical measures of community involvement and social responsibility. It was then evaluated for construct validity using exploratory factor analysis (EFA) and for validity using expert judgement. Cronbach's Alpha and McDonald's Omega coefficients were used in reliability tests. The findings demonstrated a multifaceted factor structure that identified cultural empathy, social justice orientation, and contextual awareness as important determinants of student volunteer motivation. The model demonstrated good explanatory power to the volunteer motivation variable (R2 = 0.998) and high reliability (α > 0.80). These results support the critical role that school-based social programmes and character education play in fostering prosocial behaviour in teenagers. In addition to serving as a foundation for the development of civic education curricula and policies, the created instrument offers a valid and accurate evaluation framework for gauging student volunteer motivation in educational settings.

Declined JEES: Journal of Education and Educational Sciences

INVESTIGATING THE RELATIONSHIP BETWEEN TEACHER IMMEDIACY, STUDENT ENGAGEMENT, AND ENGLISH LEARNING ACHIEVEMENT

mazaya tari karamina ariska

Abstract This study examines the interaction between student engagement, teacher immediacy, and English learning achievement among secondary school and university students in Cirebon, West Java. The urgency of this research lies in the high levels of English learning achievement, which negatively affect students’ learning performance. Using path analysis on data from 289 participants, the results show that teacher immediacy significantly mediates the relationship between student engagement and English learning achievement (indirect effect = 0.281, p < 0.05). The model accounts for 31.5% of the variance in English learning achievement (R² = 0.315). These findings highlight the crucial role of self-regulation and metacognitive strategies in reducing anxiety and enhancing learning effectiveness. This research supports the need for intervention programs that strengthen student engagement and teacher immediacy, particularly within the local educational and cultural context of Cirebon. Further studies are recommended to explore other contextual factors more deeply.