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All Journal Jurnal At-Tibyan: Jurnal Ilmu Alqur’an dan Tafsir Hipotenusa: Journal of Research Mathematics Education (HJRME) Unnes Journal of Mathematics Kaunia: Integration and Interconnection of Islam and Science Journal Journal Focus Action of Research Mathematic (Factor M) Jurnal Riset Mahasiswa Matematika
Pujilestari, Sri
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PEMILIHAN MODEL REGRESI LINIER BERGANDA TERBAIK PADA KASUS MULTIKOLINIERITAS BERDASARKAN METODE PRINCIPAL COMPONENT ANALYSIS (PCA) DAN METODE STEPWISE Pujilestari, Sri; Dwidayati, Nurkaromah; Sugiman, Sugiman
Unnes Journal of Mathematics Vol 6 No 1 (2017)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v6i1.11719

Abstract

Analisis regresi linier berganda digunakan untuk mengetahui hubungan antara dua atau lebih peubah penjelas dan peubah respon. Model regresi terbaik adalah model yang dapat menjelaskan perilaku peubah tak bebas dengan sebaik-baiknya dengan memilih peubah-peubah bebas dari sekian banyak peubah bebas yang tersedia dalam data dengan menggunakan kriteria pembanding adjusted dan .. Salah satu permasalahan asumsi pada model regresi linier berganda adalah seringnya terjadi korelasi antar variabel-variabel bebas pada model regresi linier berganda yang disebut sebagai multikolinieritas. Jika terdapat multikolinieritas maka kesimpulan yang dihasilkan tidak tepat. Pada penelitian ini metode yang digunakan untuk mencari model terbaik pada kasus multikolinieritas adalah metode Stepwise dan metode Principal Component Analysis (PCA). Tujuan utama dari penelitian ini yaitu mencari model terbaik dengan menggunakan metode Stepwise dan metode Principal Component Analysis (PCA). Hasil penelian yang diperoleh untuk mencari model terbaik pada kasus multikolinieritas data return saham perusahaan dalam Indeks LQ 45 di BEI periode Juli – Desember 2015 dengan menggunakan metode Principal Component Analysis (PCA) = 11,992 + 2,179 dengan nilai adjusted sebesar 0,050 dan nilai sebesar 63,049 sedangkan hasil yang diperoleh dengan metode Stepwise yaitu = 4,891 + 7,804 + 0,144 dengan nilai adjusted sebesar 0,191 dan nilai sebesar 53,678. Dari hasil tersebut dapat disimpulkan bahwa metode Stepwise lebih cocok untuk mencari model terbaik pada kasus multikolinieritas. Multiple linear regression analysis is used to determine the relationship between two or more explanatory variables and the response variable. Best regression model is a model that can explain the behavior of dependent variable as well as possible by choosing variables are free of many independent variables available in the data by using criteria comparators adjusted and .. One of the issues on the assumption of multiple linear regression model is frequent correlation between the independent variables in a multiple linear regression model known as multicollinearity. If there is multicollinearity then the conclusions are not appropriate. In this study, the method that been used to find the best model in the case of multicollinearity are stepwise method and the method of Principal Component Analysis (PCA) The main objective of this research is looking for the best model using Stepwise Method and Principal Component Analysis (PCA) method. The results obtained to search for the best model in the case of data multicollinearity stock returns in LQ 45 in BEI period from July to December 2015 by using Principal Component Analysis (PCA) Y = 11.992 + 2.179 with value adjusted by 0,050 and the value of amounted to 63.049, while the results obtained by the stepwise method is Y = 4.891 + 0.144 + 7,804 value adjusted by 0.191 and the value of amounted to 53.678. From these results it can be concluded that the Stepwise method is more suitable to find the best model on a case of multicollinearity.
Analisis Kepuasan Mahasiswa Terhadap Perkuliahan Online Pujilestari, Sri; Harini, Sri; Munah, Nailul
Jurnal Riset Mahasiswa Matematika Vol 1, No 5 (2022): Jurnal Riset Mahasiswa Matematika
Publisher : Mathematics Department, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/jrmm.v1i5.14174

Abstract

This study aims to determine the level of student satisfaction with online lectures during the Covid-19 pandemic which is still ongoing today. Variables measuring student satisfaction with online lectures are limited to aspects of learning including lecture facilities, learning media, and the implementation of online lectures. This research method uses descriptive analysis techniques. Data was collected using a questionnaire, then the data was analyzed using statistical tests to determine the validity and reliability of the instrument, multicollinearity test, and ordinal logistic regression analysis and regression parameter tests at the 95% confidence level. Based on the test results the instrument is declared valid and reliable, and the obtained regression model is feasible to use. The results of the interpretation of the model lead to conclusions, (a) the probability of students who are satisfied with online lectures in the aspect of lecture facilities is 2.21 times compared to students who are not satisfied; (b) the probability of students being satisfied with online lectures in the aspect of learning media is 1.53 times compared to students who are dissatisfied; and (c) the probability of students being satisfied with online lectures in the aspect of lecture implementation is 2.28 times compared to students who are not satisfied.
THE RELEVANCE OF ODD-EVEN VERSES IN THE QUR’AN WITH MATHEMATICS EDUCATION Surur, Agus Miftakus; Pujilestari, Sri
Jurnal At-Tibyan: Jurnal Ilmu Alqur'an dan Tafsir Vol 6 No 2 (2021): Volume 6 No. 2, Desember 2021
Publisher : The Department of the Qur'anic Studies, Faculty of Ushuluddin, Adab, and Da'wah, State Institute of Islamic Studies (IAIN) Langsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32505/at-tibyan.v6i2.3284

Abstract

Education is an effort to improve knowledge, one of which is by conducting studies on the Qur'an and Mathematics. This research examines the verses of the Qur'an containing odd-even concepts and their relevance to mathematics. By using the library research method, the verse selection step is taken from observations of the translated Qur'an. The mathematical concepts found are materials related to odd-even concepts, such as KPK (Least Common Multiple) and FPB (Greatest Common Factor), Venn diagrams, and Phi in ṭawwāf. As the result, the number of verses and the number of surahs show odd-even numbers. If the numbers are added up to 38, these will be equal to the number of letters in the syahādah sentence.
USE OF F-MATH MEDIA WITH A RELIGIOUS NUANCE AND STUDENTS' CREATIVE THINKING ABILITIES ON COGNITIVE AND AFFECTIVE ABILITIES IN MATHEMATICS LEARNING Surur, Agus Miftakus; Praherdhiono, Henry; Ridwanulloh, M Ubaidillah; Akhyar, M Khoiril; Pujilestari, Sri
Hipotenusa Journal of Research Mathematics Education (HJRME) Vol 8, No 2 (2025): Hipotenusa Journal of Research Mathematics Education (HJRME)
Publisher : Universitas Muhammadiyah Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36269/hjrme.v8i2.3370

Abstract

Social media has a strong appeal to today's young generation. The use of social media with religious nuances in f-math can provide context that is relevant to religious values, so that students can connect mathematics with moral principles and have a positive perception of mathematics learning. The use of social media-based f-math media can also influence students' cognitive abilities in understanding mathematical concepts. With dynamic interactions and attractive visuals, students tend to be more interested and participate more actively in mathematics learning. Apart from that, the use of social media in mathematics learning can influence students' affective abilities. Active involvement in use so that students' level of confidence and motivation can increase. This can lead to the formation of a positive attitude towards mathematics and increase self-confidence in solving mathematical problems. The use of f-math media based on social media with religious nuances can have a positive influence on students' creative thinking abilities as well as cognitive and affective abilities in learning mathematics. By utilizing the appeal of social media and emphasizing the relevance of mathematics to religious values, students can view mathematics more positively and develop their creative thinking skills in solving mathematical problems.
THE RELEVANCE OF ODD-EVEN VERSES IN THE QUR'AN WITH MATHEMATICS EDUCATION Surur, Agus Miftakus; Pujilestari, Sri
Jurnal At-Tibyan: Jurnal Ilmu Alqur'an dan Tafsir Vol 6 No 2 (2021): Volume 6 No. 2, Desember 2021
Publisher : The Department of the Qur'anic Studies, Faculty of Ushuluddin, Adab, and Da'wah, State Institute of Islamic Studies (IAIN) Langsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32505/at-tibyan.v6i2.3284

Abstract

Education is an effort to improve knowledge, one of which is by conducting studies on the Qur'an and Mathematics. This research examines the verses of the Qur'an containing odd-even concepts and their relevance to mathematics. By using the library research method, the verse selection step is taken from observations of the translated Qur'an. The mathematical concepts found are materials related to odd-even concepts, such as KPK (Least Common Multiple) and FPB (Greatest Common Factor), Venn diagrams, and Phi in ṭawwāf. As the result, the number of verses and the number of surahs show odd-even numbers. If the numbers are added up to 38, these will be equal to the number of letters in the syahādah sentence.
Pembelajaran Aritmetika Sosial Berbasis Kisah Islami: Inovasi Modul Kontekstual untuk Penguatan Karakter dan Pemahaman Konsep Pujilestari, Sri; Sujarwo, Imam; Harini, Sri; Miftakus Surur, Agus; Mohamed, Hasnah Binti
Kaunia: Integration and Interconnection Islam and Science Journal Vol. 21 No. 1 (2025)
Publisher : Fakultas Sains dan Teknologi UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/kaunia.5340

Abstract

This study aims to describe the integration of Islamic values into the teaching of social arithmetic at the junior high school level through a contextual approach, to identify forms of Islamic value representation within the instructional module, and to explore students’ perceptions of mathematical understanding through an Islamic narrative-based approach. This qualitative descriptive research employed data collection techniques including document analysis of the module, semi-structured interviews, and limited classroom observation. Data were analyzed using Miles and Huberman’s model, consisting of data reduction, data display, and conclusion drawing. The findings indicate that the module “Young Muslim Entrepreneur with Mathematics” successfully integrates Islamic values into social arithmetic content through meaningful storytelling and reflective learning activities. Islamic values are represented through selected Qur’anic verses, hadiths, contextual stories, calculation problems, and learning tasks aligned with sharia principles such as honesty, prohibition of usury (riba), zakat, and social responsibility. Students demonstrated improved conceptual understanding and increased motivation to learn mathematics through this integrative approach. The modules analyzed in this study are the results of the development of the theses of students in the Masters Program in Mathematics Education. These findings suggest that mathematics learning integrated with Islamic values not only enhances cognitive comprehension but also contributes to character formation and students’ spiritual awareness. Penelitian ini bertujuan untuk mendeskripsikan integrasi nilai-nilai Islam dalam pembelajaran aritmetika sosial tingkat SMP melalui pendekatan kontekstual, mengidentifikasi bentuk representasi nilai keislaman dalam modul pembelajaran, serta mengeksplorasi persepsi siswa terhadap pemahaman konsep matematika melalui pendekatan berbasis kisah Islami. Penelitian ini menggunakan pendekatan kualitatif deskriptif dengan teknik pengumpulan data melalui analisis dokumen modul, wawancara semi-terstruktur, dan observasi terbatas. Analisis data dilakukan dengan model Miles dan Huberman yang mencakup reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa modul “Pengusaha Muslim Muda bersama Matematika” berhasil mengintegrasikan nilai-nilai Islam ke dalam materi aritmetika sosial melalui narasi kontekstual dan aktivitas reflektif. Representasi nilai keislaman ditampilkan dalam bentuk ayat, hadis, konteks kisah, soal perhitungan, dan aktivitas pembelajaran yang mencerminkan prinsip-prinsip syariah seperti kejujuran, larangan riba, zakat, dan tanggung jawab sosial. Siswa menunjukkan pemahaman konsep matematika yang lebih baik serta minat belajar yang meningkat melalui pendekatan ini. Modul yang dianalisis dalam penelitian ini merupakan hasil pengembangan dari tesis mahasiswa Program Magister Pendidikan Matematika. Temuan ini mengindikasikan bahwa pembelajaran matematika berbasis integrasi nilai keislaman tidak hanya memperkuat pemahaman kognitif, tetapi juga berkontribusi pada pembentukan karakter dan kesadaran spiritual peserta didik.
Efektivitas Pembelajaran Matematika Berbasis Open-Ended Problem dengan Model Think-Pair- Share terhadap Kemampuan Berpikir Kreatif Pujilestari, Sri
Journal Focus Action of Research Mathematic (Factor M) Vol. 1 No. 1 (2018)
Publisher : Universitas Islam Negeri (UIN) Syekh Wasil Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30762/factor_m.v1i1.964

Abstract

Penelitian ini bertujuan untuk mengetahui apakah pembelajaran matematika berbasis open-ended problem dengan model think-pair-share lebih efektif dibandingkan pembelajaran matematika konvensional terhadap kemampuan berpikir kreatif peserta didik kelas VIII. Penelitian ini dilaksanakan di SMP Negeri 1 Dlingo, Bantul, Yogyakarta pada Semester Gasal. Populasi penelitian ini adalah peserta didik kelas VIII A, VIII B, VIII C, VIII D dan VIII E semester 1 SMP Negeri 1 Dlingo . Sampel yang digunakan adalah dua kelas yang diambil secara teknik cluster random sampling, yaitu kelas VIII C sebagai kelas eksperimen, kelas VIII B sebagai kelas kontrol, sedangkan untuk kelas uji coba adalah kelas IX A. Posttest dilakukan untuk mengetahui kemampuan berpikir kreatif peserta didik setelah diberi perlakuan. Soal tes yang diberikan, terlebih dahulu telah diujicobakan di kelas uji coba. Hasil penelitian tersebut menunjukkan bahwa pembelajaran matematika berbasis open-ended problem dengan model think-pair-share lebih efektif dibandingkan pembelajaran matematika konvensional terhadap kemampuan berpikir kreatif peserta didik.
Rahasia Tartib Surah dan Ayat Al-Quran dari Unsur Bilangan (Kajian Pemikiran Izza Rohman) Pujilestari, Sri; Kartika, Weka Dwi; Lailaturrosidah, Azah; Abdussakir; Muhammad
Journal Focus Action of Research Mathematic (Factor M) Vol. 4 No. 2 (2022)
Publisher : Universitas Islam Negeri (UIN) Syekh Wasil Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30762/factor_m.v4i2.3671

Abstract

Perbedaan susunan ayat Al-Qur’an dengan urutan diturunkannya Al-Qur’an menarik untuk diteliti. Yaitu Izza Rohman yang mengkaji tentang perbandingan urutan ayat Al-Quran antara muskhaf dan kejadiannya. Tujuan dari penelitian ini untuk mengupas ulang dengan mengkaitkan dengan kajian-kajian lain yang melengkapi kajian dari Izza Rohman. Metode penelitian yang digunakan adalah dengan pendekatan literatur yang menggunakan literatur-literatur yang ada kemudian mengkaitkannya menjadi satu kesatuan. Hasil penelitian menunjukkan bahwa urutan surah dan ayat Al-Quran menjadi inspirasi dan objek kajian yang perbedaan urutannya mempunyai alasan mendasar. Ditemukannya adanya keteraturan dan keserasian dari nomor surah dan ayat dalam Al-Quran. Keteraturan dan keserasian ini menunjukkan kemukjizatan Al-Quran dilihat dari bilangan tartib surah dan ayat-ayatnya. Salah satunya adalah kajian tentang keistimewaan bilangan 7 dan bilangan 19. Dari bilangan tersebut dapat diungkap beberapa rahasia nomor surat dan nomor ayat. Selain itu juga kajian tentang lafadz bismillah yang didalamnya mengandung angka 7 dan 19 juga. The difference in the arrangement of the verses of the Qur'an with the order in which the Qur'an was revealed is interesting to study. Namely Izza Rohman who studied the comparison of the order of the verses of the Qur'an between the muskhaf and its occurrence. The purpose of this study is to re-explore by linking it with other studies that complement the study of Izza Rohman. The research method used is a literature approach that uses the existing literature and then links it into a single unit. The results showed that the order of the surahs and verses of the Qur'an became the inspiration and object of study whose different sequences had basic reasons. The discovery of the regularity and harmony of the number of surahs and verses in the Al-Quran. This order and harmony shows the miracles of the Al-Quran seen from the number of tartib surahs and verses. One of them is the study of the peculiarities of the numbers 7 and 19. From these numbers, several secrets of letter numbers and verse numbers can be revealed. In addition, there is also a study of the bismillah lafadz which contains the numbers 7 and 19 as well.
Co-Authors Abdussakir Agus Miftakus Surur, Agus Miftakus Akhyar, M Khoiril Henry Praherdhiono Imam Sujarwo Kartika, Weka Dwi Lailaturrosidah, Azah Mohamed, Hasnah Binti Muhammad Munah, Nailul Nurkaromah Dwidayati, Nurkaromah Ridwanulloh, M Ubaidillah Sri Harini Sugiman Sugiman