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Evaluating Usability And Customer Satisfaction in E-Marketplaces Using System Usability Scale and Customer Satisfaction Score Nova Christina Sari; Yusa Putra; Alfa Hikmatun Nabilah; Revania Jeni Puspitasari
Journal of Computing and Smart Ecosystems Vol. 1 No. 1 (2025): J-CaSE
Publisher : S1 Teknologi Informasi, Universitas Muhammadiyah Semarang

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

Abstract

In the digital era, user experience (UX) plays a critical role in determining the success of online platforms, particularly in the highly competitive e-commerce industry. This study presents a comparative evaluation of three major e-commerce applications in Indonesia namely Shopee, Tokopedia, and Lazada using two standardized instruments: the System Usability Scale (SUS) and the Customer Satisfaction Score (CSAT). A total of 100 respondents participated in the survey, which included 10 questions mapped to SUS and 10 questions mapped to CSAT. The results revealed that all three platforms scored poorly in usability and customer satisfaction metrics. Shopee achieved the highest SUS score 51, categorized as marginal, while Tokopedia 50 and Lazada 49.55. CSAT scores followed a similar pattern, with Shopee 52%, Tokopedia 55%, and Lazada 50% falling into low or very low satisfaction categories. These findings highlight the need for substantial improvements in both usability and service quality to enhance overall user experience and engagement. This study emphasizes the importance of integrating both SUS and CSAT methods to obtain a holistic understanding of user perceptions
OPTIMALISASI PEMBELAJARAN MATEMATIKA SECARA DIGITAL MELALUI WEBSITE MATHEXIA.ORG: OPTIMIZING DIGITAL MATHEMATICS LEARNING THROUGH THE MATHEXIA.ORG WEBSITE Rike Marjulisa; Ayunda Putri; Yusa Putra; Nanditya Syahmi Khan; Devan Aptinsyah
Jurnal Pengabdian Masyarakat Multidisiplin Vol 9 No 1 (2025): Oktober
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/jpm.v9i1.6879

Abstract

The utilization of digital technology in mathematics learning is very important to improve the quality of the learning process. This service activity aims to introduce and implement Mathexia.org, a digital question bank website, for he Senior High School Mathematics Teacher Forum (MGMP) of Pelalawan Regency. This platform allows teachers to input questions and materials, access question banks between schools, and organize token and time-based exams. Students can access materials, take exams, view results, and review questions for further study. Implementation methods included teacher training and the use of a student questionnaire with a four-point Likert scale, which was analyzed descriptively quantitatively. Results from 140 students showed positive improvements in learning motivation, digital literacy, and effectiveness of material comprehension after using Mathexia.org. This activity proves that this website can be an innovative solution in supporting more modern math learning in Kabupaten Pelalawan.  
Workshop Pengembangkan Perangkat Pembelajaran Deep Learning Bagi Guru SD Kecamatan Minas Kabupaten Siak: Pengabdian Sehatta Saragih; Maimunah Maimunah; Atma Murni; Sakur Sakur; Syarifah Nur Siregar; Elfis Suanto; Elmawati Elmawati; Wigbertus Ngabu; Susda Heleni; Yusa Putra
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 4 (2026): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 4 April - Juni
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i4.6178

Abstract

Implementasi Deep Learning (DL) yang baru dicanangkan pada 2025 masih membutuhkan waktu karena kendala pemahaman prinsip serta ketidaksesuaian perangkat pembelajaran. Untuk mempercepat penerapannya, diperlukan pendampingan guru dalam penguatan pemahaman dan penyusunan perangkat. Di UPTD Dinas Pendidikan Kecamatan Minas, DL masih pada tahap sosialisasi dan belum optimal akibat keterbatasan kompetensi guru. Menanggapi hal tersebut, Tim PKM Program Studi Pendidikan Matematika bekerja sama dengan Dinas Pendidikan Kabupaten Siak menyelenggarakan workshop pengembangan perangkat pembelajaran bagi 26 guru dari 16 SD. Hasilnya menunjukkan kemampuan peserta berada pada kategori baik dan respon terhadap kegiatan sangat baik.
Peningkatan Kompetensi Guru MGMP Matematika SMA Melalui Pelatihan Penyusunan Bank Soal Digital Berbasis Website Rike Marjulisa; Ayunda Putri; Yusa Putra; Devan Aptinsyah; Nanditya Syahmi Khan
Unri Conference Series: Community Engagement Vol 7 (2025): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.7.546-551

Abstract

Digital transformation in education requires teachers to adapt to learning and assessment technologies. This community service program aims to improve the competence of high school mathematics teachers in Pelalawan Regency through training in the use of a digital question bank website. Activities include orientation, training in question development, use of automatic evaluation features, and utilization of the student learning outcome analysis dashboard. Data was collected through observation, questionnaires, and documentation of teachers' activities during training and implementation. The results of the activities indicate that teachers are able to operate the website effectively. The automatic evaluation feature was proven to speed up the correction process and provide faster feedback to students. Meanwhile, the analysis dashboard made it easier for teachers to monitor student learning achievements based on topics, thereby supporting measurable improvements in learning strategies. Additionally, the digital question bank helped standardize question quality across schools under the coordination of the MGMP, making assessments more consistent and transparent. The implementation of this website also improves time efficiency and reduces teachers' administrative burden in the evaluation process. Thus, this program contributes to improving teachers' digital literacy, assessment effectiveness, and strengthening collaboration among teachers within the MGMP environment. The sustainability of the program is expected to support the creation of an inclusive and competitive digital learning ecosystem.
Exploring the Dynamics of Academic Achievement in End of Semester Assessment Based on Class and Gender Using a Two Way ANOVA Approach Wigbertus Ngabu; Putri Yuanita; Elmawati Elmawati; Suci Andriani; Yusa Putra
JPMI (Jurnal Pendidikan Matematika Indonesia) Vol 11, No 1 (2026): Volume 11 Number 1, March 2026
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26737/jpmi.v11i1.8542

Abstract

The evaluation of learning outcomes is an essential component of higher education because it reflects learning achievement and the effectiveness of the instructional process. This study aims to analyze the dynamics of students’ academic performance in the final semester examination of the Basic Statistics course based on class (A, B, C) and gender (male, female). The study employed an explanatory quantitative approach with a factorial design and was analyzed using a two-way analysis of variance (two-way ANOVA). Assumption testing indicated that the residuals were normally distributed (Shapiro–Wilk p = 0.0854) and that variances across groups were homogeneous (Levene p-value = 0.6468), confirming that the ANOVA prerequisites were satisfied. The ANOVA results showed that class had a statistically significant effect on final examination scores (F(2,104) = 2.956; p = 0.00562) and that gender also had a statistically significant effect (F(1,104) = 0.704; p = 0.0032), whereas the class × gender interaction was not statistically significant (F(2,104) = 1.355; p = 0.0626). Post hoc analysis using Tukey’s HSD revealed that differences across classes were primarily driven by the contrast between Class C and Class A (p-adj = 0.0443), while gender-based differences showed a consistent pattern across classes (p-adj = 0.0069). These findings were supported by boxplots and interaction plots that displayed score distributions consistent with the inferential results. Overall, the study indicates that variation in students’ academic performance in the final semester evaluation is independently influenced by class and gender. The findings are expected to inform more data-driven academic decision-making and contribute methodologically to the application of statistical analysis. Based on these results, the study program is advised to standardize instructional implementation and evaluation across classes and to provide more targeted learning support for groups of students who consistently demonstrate lower achievement, so that learning gaps can be reduced in a data-driven manner.Eksplorasi Dinamika Prestasi Akademik pada Evaluasi Akhir Semester Berdasarkan Kelas dan Gender Menggunakan Pendekatan ANOVA Dua ArahABSTRAKEvaluasi hasil belajar merupakan komponen penting dalam pendidikan tinggi karena mencerminkan capaian pembelajaran serta efektivitas proses pembelajaran. Penelitian ini bertujuan menganalisis dinamika prestasi akademik mahasiswa pada ujian akhir semester mata kuliah Statistika Dasar berdasarkan faktor kelas (A, B, C) dan gender (laki-laki, perempuan). Penelitian menggunakan pendekatan kuantitatif eksplanatori dengan desain faktorial dan dianalisis melalui Analisis Varians Dua Arah (two-way ANOVA). Uji asumsi menunjukkan residual berdistribusi normal (Shapiro–Wilk ) dan varians antar-kelompok homogen (Levene p-value = 0.6468), sehingga prasyarat ANOVA terpenuhi. Hasil ANOVA menunjukkan bahwa faktor kelas berpengaruh signifikan terhadap skor ujian akhir semester  dan faktor gender juga berpengaruh signifikan , sedangkan interaksi kelas×gender tidak menunjukkan pengaruh yang signifikan . Uji lanjut Tukey HSD mengungkapkan bahwa perbedaan capaian antar kelas terutama didorong oleh perbedaan Kelas C dan Kelas A (p-adj = 0.0443), sementara perbedaan berdasarkan gender menunjukkan kecenderungan yang konsisten di seluruh kelas  Temuan ini diperkuat oleh boxplot dan interaction plot yang menampilkan pola distribusi skor sejalan dengan hasil inferensial. Secara keseluruhan, penelitian ini menunjukkan bahwa variasi prestasi akademik mahasiswa dalam evaluasi akhir semester dipengaruhi secara independen oleh faktor kelas dan gender. Hasil penelitian ini diharapkan dapat menjadi dasar pengambilan keputusan akademik yang lebih berbasis data, serta memberikan kontribusi metodologis dalam penerapan analisis statistik.  Berdasarkan temuan tersebut, program studi disarankan melakukan standardisasi implementasi pembelajaran dan evaluasi antar kelas serta menyediakan dukungan belajar yang lebih terarah bagi kelompok mahasiswa yang konsisten menunjukkan capaian lebih rendah agar kesenjangan hasil belajar dapat ditekan secara berbasis data.Kata Kunci :Prestasi akademik mahasiswa; Statistika dasar; Evaluasi pembelajaran; ANOVA