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All Journal Biosfer: Jurnal Pendidikan Biologi Journal of Management - Small and Medium Enterprises (SME's) Journal Economy And Currency Study (JECS) MDP Student Conference Journal of Linguistics, Literacy, and Pedagogy
Serina, Serina
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Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Languange, Linguistic, Communication & Media

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Pengaruh Financial Literacy Dan Financial Attitude Terhadap Financial Behavior Dimoderasi Oleh Self Control Budiman, Johny; Cheristina, Cheristina; Ng, Mardiana; Serina, Serina; Chang, Wirren
MDP Student Conference Vol 3 No 2 (2024): The 3rd MDP Student Conference 2024
Publisher : Universitas Multi Data Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35957/mdp-sc.v3i2.7191

Abstract

Tujuan penelitian ini adalah untuk menganalisis bagaimana Financial Literacy dan Financial Attitude berdampak pada Financial Behavior yang dimoderasi oleh Self Control. Data primer yang dikumpulkan melalui kuesioner digunakan dalam penelitian ini. Target sampel dari penelitian ini adalah masyarakat di Kota Batam. Sampel yang digunakan dalam penelitian ini berjumlah 220. Metode analisis yang digunakan untuk menganalisis data adalah Partial Least Square Structural Equation Model (PLS-SEM). Hasil menunjukkan bahwa financial literacy dan financial attitude berpengaruh positif terhadap financial behavior. Sedangkan self control tidak mampu memoderasi hubungan antara financial literacy dan financial attitude terhadap financial behavior.
Enhancing Students' Vocabulary Mastery through the Look-Say Method in Junior High School Serina, Serina; Hamidiyah, Aisyah; Utomo, Dhafid Wahyu
Journal of Linguistics, Literacy, and Pedagogy Vol 3, No 2 (2024): November 2024
Publisher : Journal of Linguistics, Literacy, and Pedagogy

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/jllp.v3i2.29571

Abstract

This study was aimed to investigate students’ English vocabulary mastery improvement using the Look-Say method. The quasi-experimental was used as the research method and the sample was the seventh-grade students of the Islamic School in Dahu Banten. The instruments in this research were the pre-test and post-test. The content validity was used to test the item tests validity and the IBM SPSS Statistics 23 application with the Cronbach Alpa formula was used to test the reliability. The findings showed that there was an increase in mean scores from pre-test to post-test: the experimental class’s average score increased from 38.97 to 91.03, while the control class’s average score increased from 40.09 to 59.11. The Independent T-test from students’ score of the post-test was 0.00, which indicates a significant difference between the experimental class and the control class. Therefore, it can be concluded that the Look-Say method can enhance the seventh-grade students at Islamic School in Dahu Banten
THE PSYCHOLOGICAL AND EDUCATIONAL DRIVERS OF INVESTMENT DECISIONS: A STUDY ON GEN Y AND GEN Z IN BATAM CITY Marheni, Dewi Khornida; Serina, Serina; Hashim, Hanini Ilyana Che; Ramadani, Arienda Gitty
Journal of Management Small and Medium Enterprises (SMEs) Vol 18 No 2 (2025): JOURNAL OF MANAGEMENT Small and Medium Enterprises (SME's)
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jom.v18i2.20434

Abstract

The primary purpose of this research is to thoroughly analyze the influence of overconfidence and herding behavior on stock investment decisions. Additionally, this research aims to investigate the moderating effect of financial literacy on the relationship between these behavioral factors (overconfidence and herding) and investment decisions. This research is quantitative research. The sample of this research is Gen Y and Gen Z stock investors in Batam City, Indonesia. The research analyzed the data using Partial Least Square Structural Equation Model (PLS-SEM), an advanced statistical technique that allows examining complicated relationships among observed variables and latent variables. The findings have revealed that overconfidence has a significant positive effect on investment. Similarly, herding significantly positively affects investment decisions, while financial literacy successfully moderates the relationship between overconfidence and investment decisions; however, it does not successfully moderate the relationship between herding and investment decisions. Keywords: Financial Literacy; Herding; Investment Decision; Overconfidence
Development of a flipbook-based e-module on the human circulatory system Serina, Serina; Panjaitan, Ruqiah Ganda Putri; Wahyuni, Eko Sri
Biosfer: Jurnal Pendidikan Biologi Vol. 18 No. 2 (2025): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/biosferjpb.54520

Abstract

Teaching materials for the human circulatory system are still limited to printed books, which lack interactivity and do not provide visual representations for understanding its anatomical structure. The development of interactive e-modules is needed to facilitate more effective learning through the integration of text, images, videos, and interactive elements. This research seeks to determine both the viability and student response to an interactive heyzine-based electronic module covering the human circulatory system submaterial, exploring its potential as a more engaging alternative educational resource. The study employed a modified Research and Development methodology based on the Borg and Gall model as adapted by Sugiyono. Researcher selected participants through purposive sampling, involving 36 eighth-grade junior high school students. The research utilized validation sheets and student response questionnaires. The research instruments were validated by 5 expert validators. The researcher used content validity analysis methods, specifically Aiken's V coefficient, to analyze the collected data. Reliability testing using Intraclass Correlation Coefficients. Assessment of student response questionnaire using the Likert scale. The teaching material validation analysis produced an average score of 0.92, placing it in the valid category. Reliability testing yielded a score of 0.806, which falls within the good classification. Students responded favorably to the developed educational materials, with an average positive response rate of 77.57%, indicating good reception. Based on these findings, we determined that the developed heyzine-based electronic module covering the human circulatory system sub-material is appropriate for educational implementation.
Peran Kepemimpinan Dalam Meningkatkan Kinerja Karyawan pada Koperasi Pangkas Benua Desa Kedondong Kecamatan Kendawangan Kabupaten Ketapang Serina, Serina; Firayanti, Yuni; Marhamah, Marhamah
Journal Economy and Currency Study (JECS) Vol. 7 No. 1 (2025)
Publisher : Pusdikra Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51178/jecs.v7i1.2830

Abstract

Penelitian ini bertujuan untuk menganalisis peran kepemimpinan dalam meningkatkan kinerja karyawan pada Koperasi Pangkas Benua Desa Kedondong, Kecamatan Kendawangan, Kabupaten Ketapang. Latar belakang penelitian ini berangkat dari fenomena rendahnya efektivitas kepemimpinan di beberapa koperasi di Kabupaten Ketapang, sementara Koperasi Pangkas Benua menunjukkan perkembangan positif dalam hal jumlah anggota aktif dan volume usaha. Metode penelitian menggunakan pendekatan kualitatif dengan jenis penelitian lapangan. Data dikumpulkan melalui wawancara, observasi, dan dokumentasi, dengan teknik triangulasi untuk menguji keabsahan data. Hasil penelitian menunjukkan bahwa kepemimpinan di Koperasi Pangkas Benua berperan penting dalam pengambilan keputusan, motivasi, komunikasi, serta pengendalian emosi. Meski demikian, keterlibatan karyawan lapangan dalam proses perumusan kebijakan masih terbatas, sehingga menimbulkan kesenjangan persepsi antara pengurus dan karyawan. Temuan ini menegaskan bahwa kepemimpinan yang efektif, partisipatif, dan komunikatif dapat meningkatkan motivasi serta kinerja karyawan, yang pada akhirnya berdampak pada keberhasilan koperasi.
Co-Authors Chang, Wirren Cheristina, Cheristina Eko Sri Wahyuni Firayanti, Yuni Hamidiyah, Aisyah Hashim, Hanini Ilyana Che Johny Budiman Marhamah Marhamah Marheni, Dewi Khornida Ng, Mardiana Ramadani, Arienda Gitty Ruqiah Ganda Putri Panjaitan Utomo, Dhafid Wahyu