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MUST: Journal of Mathematics Education, Science and Technology
Published by Universitas Muhammadiyah Surabaya
ISSN : 25416057     EISSN : 25414674     DOI : -
Core Subject : Science, Education,
Computer Science & IT Education Mathematics
MUST is a journal of mathematics education, science, and technology published by the Faculty of Teacher Training and Education, Muhammadiyah University of Surabaya. This journal focuses on the publication of research results and scientific articles on mathematics education, science, and technology. MUST Journal is published twice in a year, on July and December.
Arjuna Subject : -
Articles 2 Documents
 1 
Search results for , issue "Vol 8 No 1 (2023): JULY" : 2 Documents clear
Pemodelan Nilai Saham Perusahaan Pertambangan di Indonesia Berdasarkan Metode Generalized Autoregressive Conditional Heteroscedasticity (GARCH) Ayuning Dwis Cahyasari; Sediono Sediono; Elly Ana; M. Fariz Fadillah Mardianto; Elly Pusporani; Siti Maghfirotul Ulyah
MUST: Journal of Mathematics Education, Science and Technology Vol 8 No 1 (2023): JULY
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/must.v8i1.17117

Abstract

Indonesia masih menghadapi tantangan untuk mewujudkan Sustainable Development Goals (SDGs). Salah satunya, upaya dalam mendukung pertumbuhan ekonomi yang inklusif dan berkelanjutan. Peranan pasar modal dianggap penting dalam pembangunan perekonomian sebagai media investasi sehingga dapat memperkuat posisi keuangan pada Industri khususnya dalam negeri. Untuk mewujudkan tujuan dan cita - cita Indonesia perlu diadakan pengoptimalan kegiatan sektor yang bergerak pada bidang pertambangan salah satunya pada saham PT. X yang merupakan salah satu perusahaan pertambangan. Pergerakan naik turun saham dikenal dengan volatilitas harga saham. Volatilitas disebabkan karena kondisi data yang bersifat heteroskedastisitas yang berarti variansi dari residual dapat berubah - ubah  dan tergantung waktu. Saham yang mengalami penurunan secara drastis dapat mempengaruhi kualitas kerja. Salah satu solusi untuk mengatasi permasalahan heteroskedastisitas tersebut adalah dengan menggunakan pendekatan analisis Generalized Autoregressive Conditional Heteroscedasticity (GARCH). Berdasarkan hasil diagnostic checking, didapatkan model GARCH (2,1) yang merupakan model GARCH terbaik, dan didapatkan nilai MAPE sebesar 15,5195% yang termasuk ke dalam kategori prediksi baik. Prediksi dari hasil model terbaik dapat menjadi rekomendasi dan evaluasi bagi pemerintah juga bagi para pelaku kegiatan ekonomi untuk mempersiapkan perencanaan ekonomi yang lebih baik dalam rangka mencapai target memperbaiki ekonomi nasional.
Penilaian Kualitas Instrumen Media Pengajaran Portal E-Modul Materi Sistem Peredaran Darah Radeswandri Radeswandri; Anggie Dwimaya Amanda; Rian Vebrianto
MUST: Journal of Mathematics Education, Science and Technology Vol 8 No 1 (2023): JULY
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/must.v8i1.16545

Abstract

Utilization of good media can be used as an optimization of students in carrying out the learning process. The E-module of the Circulatory System is one of the transformation media resulting from technological developments that can attract students' attention and interest in reading. In this study, to produce the E-module of the Circulatory System as a quality media, it is necessary to evaluate 3 constructs, namely product design, information contained, and product effectiveness. Data collection techniques were carried out by filling out online questionnaires with data processing analysis using SPSS version 23. The results of testing the validity of the Corrected Item – Total Correlation value were above 0,3; and reliable as evidenced by the coefficient on Cronbach's alpha > 0,6, which is 0,69. The results of the analysis show that the instruments used meet the valid and reliable criteria. Therefore, the Circulatory System E-module can be used for learning.

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