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Zulkarnain Zulkarnain
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Uji Validitas Konstruk Instrumen MARS-30 dalam Mengukur Kecemasan Matematika Siswa Melalui Simulasi Monte Carlo Zulkarnain Zulkarnain; Salnia Ramadani
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 3 (2025): Desember : JURRIMIPA: Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v4i3.7103

Abstract

Mathematics anxiety is a psychological barrier that negatively affects students’ performance and self-confidence. A valid and reliable measurement tool is required to identify this condition accurately. This study aims to examine the construct validity of the Mathematics Anxiety Rating Scale 30 (MARS-30) using a Monte Carlo simulation approach. The research employed first-order confirmatory factor analysis (CFA) through R software with a simulated sample of 300 respondents. The findings revealed that the overall measurement model achieved excellent fit indices, as indicated by Normed χ², RMSEA, SRMR, and CFI, all within the optimal range. Nevertheless, only 8 out of 30 items (26.7%) met the validity criteria, while the remaining 22 items were found invalid. This result suggests that although the global model fit was adequate, most items of MARS-30 did not consistently represent the construct of mathematics anxiety. The implication of this study highlights the necessity of revising the instrument by refining item wording, adjusting indicators, and conducting further testing to ensure stronger construct validity. A more valid instrument will enable educators and researchers to design targeted pedagogical interventions for reducing mathematics anxiety and supporting students’ learning outcomes.
Penerapan Prinsip-Prinsip Good Corporate Governance pada Program Corporate Social Responsibility Nur Asiah; Sri Haryanti; Zulkarnain Zulkarnain
Winter Journal: IMWI Student Research Journal Vol. 1 No. 1 (2020): Winter Journal: IMWI Student Research Journal
Publisher : Institut Manajemen Wiyata Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.179 KB) | DOI: 10.52851/wt.v1i1.2

Abstract

This research discusses the application of the principles of GCG through the CSR program and tries to examine the various policies applied in various countries in implementing CSR as an illustration for Indonesia in implementing policies so that CSR can be focused and directed. The research was conducted using a literature review approach. Literature search through an online search engine from the Google Scholar database, Directory of Open Access Journals (DOAJ), Elsevier, and Wiley Online Library. The conclusion from the results of this study is that Indonesia is right to use a mandatory system, if CSR is only based on voluntary principles, this certainly cannot be carried out effectively and measurably in the application of CSR. CSR should have binding legal force and legal certainty as well as an obligation that must be carried out by the company. The obligation that must be carried out by the company is in the form of an obligation to issue the results of CSR activity reports to the public. In addition, it needs an important first step in implementing GCG, the Indonesian government can form a special agency or institution that is tasked with implementing the concept of GCG and implementing CSR in Indonesia. So, it is hoped that the implementation of CSR will be more focused and focused.
Kemampuan ROA dan NPM dalam Memengaruhi Return Saham Melly Fuji Astuti; Zulkarnain Zulkarnain
Winter Journal: IMWI Student Research Journal Vol. 1 No. 1 (2020): Winter Journal: IMWI Student Research Journal
Publisher : Institut Manajemen Wiyata Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (411.862 KB) | DOI: 10.52851/wt.v1i1.4

Abstract

Return is what investors who invest their capital expect. ROA is used to determine company performance based on the company's ability to utilize its assets, this can lead to appreciation and depreciation of stock prices. NPM calculates the extent to which the company's ability to generate net income at a certain sales level. A high ratio gives confidence to investors to own company shares which can increase stock returns in the future. This study aims to determine: (1) the effect of return on assets (ROA) on stock returns, (2) the effect of net profit margin (NPM) on stock returns, and (3) the effect of return on assets (ROA) and net profit margin ( NPM) on stock returns simultaneously. The research subjects were manufacturing companies in the food and beverage sub-sector on the IDX 2012-2016. The data used are secondary data. The data analysis technique used in this study is Multiple Linear Regression Analysis. The results showed that (1) return on assets (ROA) has no effect on stock returns. (2) net profit margin (NPM) has no effect on stock returns. 3) simultaneous return on assets (ROA) and net profit margin (NPM) has no effect on stock returns.
Pengaruh Net Income, Cash Flow from Operations, dan Company Size Terhadap Dividend Policy Elis Natasya; Zulkarnain Zulkarnain
Winter Journal: IMWI Student Research Journal Vol. 3 No. 1 (2022): Winter Journal: IMWI Student Research Journal
Publisher : Institut Manajemen Wiyata Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (430.119 KB) | DOI: 10.52851/wt.v3i1.7

Abstract

This study was conducted to determine the effect of net income, cash flow from operations, and company size on dividend policy on basic and chemical sub-sector manufacturing companies listed on the Indonesia Stock Exchange for the period 2012-2016. The test was carried out using multiplle linear regression test with SPSS version 21. The study was conducted on 35 observations from annual reports of 7 companies samples from the selection by purposive sampling. Independent net income (X1), cash flow from operations (X2), and company size (X3) to dividend policy (Y). Companies that earn profits do not directly distribute dividends but are used for reinvestment. Companies with a limited amount of cash can distribute dividends in the from of stock dividends and large companies do not always distribute dividends because the economy is not stable so that the management of company funds is not effective. This situation makes the company prioritize the company’s growth.
Analisis Laporan Keuangan Perusahaan-Perusahaan Go Public Sektor Pertambangan Yang Terdaftar di BEI Seli Nurdianti; Zulkarnain Zulkarnain
Winter Journal: IMWI Student Research Journal Vol. 1 No. 2 (2020): Winter Journal: IMWI Student Research Journal
Publisher : Institut Manajemen Wiyata Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (405.147 KB) | DOI: 10.52851/wt.v1i2.11

Abstract

This report analyzes the financial position (Balance Sheet) and the income statement of the mining sector, comparing reports that ended as of December 31, 2018 and 2017. Data in this report represent four mining sizes and three types of mining sub-sectors. This study aims to provide an overview and find out the financial performance of mining sector companies with measuring tools or indicators used in measuring the financial performance of the mining sector is the annual financial statement financial ratios. Quantitative approaches are used in data analysis and then the results of data analysis are done descriptively with secondary data obtained from financial statements to illustrate the findings of the analysis results related to the data. The results of the discussion found that the financial performance of companies grouped by size and type in the mining sector 2017 and 2018 seemed to be with a fluctuating ratio, this was due to an increase or decrease in financial statement items, for example in cash, debt, sales, inventory, profits , and others.
Co-Authors A Halim Abror Aji Wicaksono Ade Cai Serini Marbun Ade Fahrizal Adelina Hasyim Afifah Rahmadini Afrizal Afrizal Agrina Agrina Agus Rahman Ibrahim Agustina Anisa Nur Aisyah AR Aisyah Fitria Akhmad Saiful Alfiah Salsabila Syifa Alif Hudan Hudan Almira Honesta Alvini Lestari Aman aman Ambika Putri Swakartika Sari Amirah Maritsa Amirah MaritsaSTIKES Amanah Makassar Andari Mayasari Andi Fedrawan Andri Saputra Anwar, Anwar Arfah Unisa. S Ari Sandi Arif Ferdiansyah Arinza Regina Syuri Armis Armis Asrul Anas Astaria Br Ginting Atma Murni Ayu Dwi Lestari Ayu Febriani Azni Fajrilia Bagio, Bagio Bistok Saing Biyatmi Biyatmi Buchori Asyik Budiyono Budiyono Carina Serly Saputri Chandra Praba Dwi Saputra Chandra Putra Clara Sari Clariza Sherllyana Cut Murzalina Cynthia Wahyu Asrizal Daniel Monintja Daniel R Monintja Darwis AN Darwis AN Darwis Darwis Dedy Miswar Dedy Miswar Della Triandini Deny Danar Rahayu Dera Elfranita Derdjo Djony Saputro Dessy Wulandari Devi Yulia Dewi Puspitasari Dhea Raisa Darus Diah Putri Safera Diah Resti Rahayu Diah Septianingsih Dian Anisa Fitri Dian Aprilianti Dian Taruli Silitonga Dian Utami Diant Ratna Andhyka Sari Dina Noviana Djoko Umar Said Dwi Yuni Astuti Dwita Ayu Setioningrum Edy Haryono Eka Novella Dewi Eka Pratiwi Eko Media Deneski Eko Saputra Elda Elrin Hasanah Eldes Safitri Elfis Suanto Eliana Eliana Elis Natasya Elma Iryana Elyus Juniwan Emmidia Djonaedi Endah Gita Cahyani Eni Ayu Lestari Erni Mentari Fadelia Damayanti Fahmi Astathi Faisal Andryan Chairuddin Farah Atikah Farid Wadjdi Fatimah Usman Febrina Harianja Fepti Tri Wulandari Ferly Apriansyah Fida Al Hikmah Fikri Syahputra Finni Yulyoni Firdaus Firdaus Firma Pertiwi Firman Aziz Firman Firman Firman Nugroho Fuspa Dewi Gesha Octora Sonia Gunawan Indra Permana Gusti Rahman Hafsan, Hafsan Hajrah Hajrah Hamdi Hamid Hanny Hafiar Harry Febriyan Hasrini Hasrini Hendri Purwanto Henni Noviasari Heriyadi Manan Heru Soendoro Hery Noer Aly I Gede Sugiyanta Indah Novita Dewi Indah Siti Aisyah Indah Yuliana indra indra Indra Tri Pangestu Intan Putri Nur Indah Sari Ira Rahmawati Irawan Irawan Irfan Hidayat Irhamsyah Hasibuan Irma Lusi Nugraheni Irsyadi Yani Iskandarsyah Siregar Ismah Rustam Ismail Thamrin Isti Diana Sari Ivo Rahmadini Lubis Iwan Dirwana Jafar Arifin Jamilah Jamilah Jesicca Reza Utari Jia Maghfirah Jihan Faiza Johannes Saing Jushermi Jushermi Kaizan Kaizan Kaizan Kaizan Karina P Sangara Mara Karnelis Karnelis KARTIKOWATI KARTIKOWATI Kartini Hasballah Kartini Kartini Khusnul Mar'iyah Kiki Fatmala Kurnia Makmur Kusai Kusai Lamtiurma Ronasari Sinaga Lilis Indrayani Lilis Sulistyowati Lily Hanifah Lina Sari Listumbinang Halengkara Lona Sari Luh Putu Ratna Sundari Lukman Hakim M. Thoha B Sampurna Jaya Magdalena Sari Yulfita Manda Juniawan Mardewi Mardewi Mardhiah Abbas Mardliyah, Ainul Mareani Leppan N Maria Dewi Sulistyawati Maria Ulfa Rara Ardhika Marliani Marliani Marselendra Exprendy Ramadan Martanti Martanti Maryana Novita Maskun Maskun Maulana Putra Melly Fuji Astuti Meri Herlina Meti Rismiati Miftahul Janah Mila Rima Dani Milati Eka Rini Minarni Shidiq Misnaniarti Misnaniarti Monica Simorangkir Much Enandang Muhamad Nur Ichwanuddin Muhammad Agus Muljanto Muhammad Fazlan Muhammad Samman Muhammad Satrio Muhammad Thoha B.S. Jaya Muhammad Yasir Muhammad Yunus Ahmad Muher Sukmayanto Muji Prasetioasih Muji Slamet Lestari Mukhlis Mustofa Mulya Sari Mulyadi Mulyadi Mulyono S. Baskoro Musrifin Ghalib Nadia Ulfa Nahor Murani Hutapea Najmah Najmah Nani Suwarni Nanik Oktavia Naomi Nababan Naufal Rabbany Nelvita Febrina Hasan Neti Betria Sari Nining Sumiarti Novi Kurnia Utami Novi Maulina Novia Anggraini Noviasari Henni Novika Sari Novita Sari Noviyani Noviyani Novliadi, Ferry Nur Asiah Nur Ayu Asrhi Nur Eka Kusuma W Nur Fadilah Nur Hamimah Nur Hayati Nur Intan Rengganis Rahmawati Nur Sifatullah Nurfadilla Nurfadilla Nurhartanto Nurhartanto Nurhikmah Nurhikmah Nurlaili Nurlaili Nursanti Aida Nuru Riani Nurul Fadhilah Tsani Ocik Lestari Okta Vianti Ona Lestary Tondang Pargito Pargito Pariati Pariati Pasaribu Fernanda Nella Pitriyani Pitriyani Popy Lorenza Puput Iswandyah Raysharie Putri Mauliapita Gumelinsi Putri Nadia Putri Yuanita Putu Kriya Santi Ganggayani Qorri Hidayati M Rafin Hidayat Rahma Kurnia Sri Utami Rahmaddiansyah Rahmaddiansyah Rahman Marlingga Rahman Rahman Rahmat Rahmat Ranti Silvia Reddy Prayoga Reeky Fardinata Refda Niari Rena Mukti Sari Reza Firdian Ruswanda Rezania Razali Ridho Nurhidayat Rima Melati Rina Amelia Rini Dian Anggraini Rini Ekawati Risa Nursila Risma Petrus Rizani Amran Rizki Ananda Hsb Robert Simangunsong Ronny I. Wahju Ronny Malavia Mardani Rosana Rosana Rostika Flora Rr. Lita Hadiati Wulandari Rusmadi Rukmana Sabilla Suryaning Amanda Sagala Putri Indah Nancy Sakur, Sakur Salnia Ramadani Salsabila Salsabila Saminan Saminan Samsir Samsir Seli Nurdianti Sella Alpiana Nanda Pratama Selviana Saraswati Selvindari Dwi Silfiah, Rossa Ilma Sipuan Sipuan Sirajuddin Sirajuddin Siti Hajijah Br. Siregar Siti Nurul Alifah Siti Pahrun Nisa siti rahmah Sonivia Gunawan Sri Haryanti Sri Nurlailah Saputri St Aisyah Sijid St Aisyah Sijid St. Aisyah Sijid Suci Dahlya Narpila Suci Rahayu Sudarmi Sudarmi Sugeng H. Wisudo Sugeng Widodo Sujianto Sujianto Sulaeman Martasuganda Sumadi Sumadi Sumarni Sumarni Suprapno Suprapno Supriyadi Supriyadi Suradi Suradi Suryani Hardjo Suyudi Suyudi Syarif Hidayat Amrullah Syintia Dewi Ananta Shinta Dewi Syofni Syofni Syukur Kholil T Fauzi Tania Dwi Tamara Taufiqurrahman Taufiqurrahman Tengku Riza Zarzani N Tesalonika Tesalonika Tiara Safitri Titi Solfitri Titin Dwi Agustiningrum Tri Wicakseno TRI WULANDARI Tria Yanuariska Trisnaningsih Trisnaningsih Triyana Agustina Silaban Ulfa Mila Sari Ummah Nurjannah Uswatun Khasanah Vera Dani Astuti Viva Desi Handayani Wahyu Ragil Wahyudi Al Fajar Muhammad Wan laura Hardilawati Wayan Juana Riskawati Wenda Norita Wendy Prasetyo Whisnu Setyo Permadi Widiya Wati Wilda Nuraida Wina Triani Windi Yudistira Wita Yulia Y Gigih Anggi T W Y. A. Wahyuddin Yadi Arodhiskara, Yadi Yarmadi Yarmadi Yarmaidi Yarmaidi Yazid Dimyati Yenita Roza Yeti Ratna Sari Yolanda Frastika Yonasri Yulia Resti Yuliana Ria Ariska Yuliana Sangka Yunidar Buana Yunisca Nurmalisa Yusmala Adinta Yusnadi Yusnadi Yuyut Ariyanto Zahratul Aini Zahrawi Astrie Ahkam Zakiah Zakiah Zinatul Hayati Zuhri D