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All Journal JURNAL MUTIARA MANAJEMEN Jurnal Absis : Jurnal Pendidikan Matematika dan Matematika Indonesian Review of Physics (IRiP) Edudikara: Jurnal Pendidikan dan Pembelajaran
Aprilia, Ananda
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Astronomy Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Social Sciences Other

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Pengaruh Budaya Belajar terhadap Self-Efficacy Siswa Cerdas Istimewa di Sekolah Menengah Atas Aprilia, Ananda; Masyithoh, Siti; SAM, Mu'arif
Edudikara: Jurnal Pendidikan dan Pembelajaran Vol 6 No 3 (2021): September
Publisher : IPTPI Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/edudikara.v6i3.258

Abstract

Penelitian ini bertujuan untuk mengumpulkan data empiris tentang pengaruh budaya belajar terhadap self-efficacy siswa cerdas istimewa di SMAN 78 Jakarta. Penelitian ini menggunakan metode kuantitatif dengan analisis regresi linear sederhana dan pengambilan sampel berdasarkan teknik simple random sampling dengan penentuan jumlah sampel yang dikembangkan oleh Isaac dan Michael. Data dikumpulkan menggunakan angket, wawancara, dan studi dokumentasi. Berdasarkan pengolahan data SPSS Ver.22, hasil pengujian korelasi (uji-r) menunjukkan rhitung bernilai positif sebesar 0,829 > rtabel sebesar 0,304 dengan signifikansi sebesar 0,000 < 0,05, maka terdapat hubungan yang signifikan antara budaya belajar terhadap self-efficacy siswa cerdas istimewa dalam tingkatan sangat kuat dan searah. Hasil perhitungan regresi linear sederhana menghasilkan koefisien regresi sebesar 0,845 yang diinterpretasikan budaya belajar berpengaruh positif terhadap self-efficacy siswa cerdas istimewa. Pada perhitungan koefisien determinasi diketahui pengaruh budaya belajar terhadap self-efficacy siswa cerdas istimewa sebesar 68,6%, sementara sisanya 31,4% dipengaruhi oleh faktor lain yang tidak diteliti. Dapat disimpulkan budaya belajar berpengaruh positif sebesar 68,6% terhadap self-efficacy siswa cerdas istimewa. Semakin baik budaya belajar siswa cerdas istimewa maka akan semakin tinggi self-efficacynya.
A Study of Tracker Software-assisted Spring Coupled Pendulum Oscillation Aprilia, Ananda; Dwandaru, Wipsar Sunu Brams
Indonesian Review of Physics Vol. 6 No. 2 (2023)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v6i2.7423

Abstract

Oscillatory motions are an essential part of our physical world. These motions need to be studied and learned by students. However, complicated oscillatory motions, e.g.: spring coupled pendulum, are rarely taught to students because their analytical solutions (if they exist) are complicated Here, we use the Tracker software to bridge between the actual coupled pendulum oscillation and its analytical solution. This study aimed to determine the period and frequency of Tracker software-assisted spring coupled pendulum oscillations. The displacement of the pendulum is divided into in-phase and out-of-phase motions. Data collection was carried out by recording the oscillatory motions up to 10 oscillations. The data were obtained from the pendulum position with respect to time. The data analysis techniques in this study used two methods, namely: i) Tracker software and ii) analytical calculations. The results showed that the period and frequency obtained via the Tracker software were in accordance with the analytical calculations. The periods of the in-phase motion and analytical calculation were 1.42 s and 1.54 s, respectively. The periods of the out-of-phase motions and analytical calculation were 0.7 s and 0.55 s, respectively. The frequencies of the in-phase motion and analytical calculation were 0.70 Hz and 0.65 Hz, respectively. The frequencies of the out-of-phase motions and analytical calculation were 1.50 Hz and 1.83 Hz, respectively. The uncertainty values of the results were 7% to 22%. Hence, the spring coupled pendulum oscillations became tractable and can be compared to the analytical solution.
PENGARUH LINGKUNGAN KERJA DAN EFIKASI DIRI TERHADAP KINERJA PEGAWAI PADA KANTOR DINAS PENDIDIKAN DELI SERDANG Aprilia, Ananda; Lubis, Anggia Sari
JURNAL MUTIARA MANAJEMEN Vol 6 No 1 (2021): Jurnal Mutiara Manajemen
Publisher : UNIVERSITAS SARI MUTIARA INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/jmm.v6i1.2121

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh lingkungan kerja dan efikasi diri terhadap kinerja pegawai pada Kantor Dinas Pendidikan Deli Serdang. Teknik pengambilan sampel menggunakan sampel jenuh berjumlah 76 orang. Metode pengumpulan data menggunakan kuesioner. Dari persamaan regresi Y = 5,550 + 0,452X1 + 0,715X2 + e. Pada uji hipotesis parsial (Uji t) variabel lingkungan kerja berpengaruh positif dan signifikan terhadap kinerja pegawai dengan nilai t hitung > t tabel (6,536 > 1,665) dan nilai signifikan 0,000 < 0,05 dan efikasi diri berpengaruh positif dan signifikan terhadap kinerja pegawai dengan nilai t hitung > t tabel (8,190 > 1,665) dan nilai signifikan 0,000 < 0,05. Hasil uji hipotesis secara simultan (Uji F) variabel lingkungan kerja dan efikasi diri berpengaruh positif dan signifikan terhadap kinerja pegawai dengan nilai F hitung > F tabel (74,620 > 3,12) dan nilai signifikan 0,000 < 0,05. Hasil uji determinasi diperoleh nilai R Square sebesar 0,672, artinya variabel kinerja pegawai dapat dijelaskan sebesar 67,2% oleh lingkungan kerja dan efikasi diri, sementara sisanya 32,8% dijelaskan oleh variabel lain yang tidak dimasukkan dalam penelitian ini.
Evaluation of the performance of TBATS and SARIMA methods in forecasting air temperature in Indonesia Aprilia, Ananda; Wijaya, Madona Yunita; Zulkifli, Dhea Urfina
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 8 No. 2 (2025): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v8i2.3052

Abstract

Indonesia is a tropical archipelago located along the equator, where air temperature patterns exhibit seasonal trends and unstable fluctuations. This instability can impact several sectors, including agriculture—making it difficult for farmers to determine planting and harvesting times—electricity demand, which increases during hotter periods, and public health, as erratic weather may reduce productivity and elevate the risk of diseases such as dehydration, asthma, and respiratory infections. This study aims to evaluate the performance of the Trigonometric, Box-Cox Transformation, ARMA Errors, Trend, and Seasonal (TBATS) model and the Seasonal Autoregressive Integrated Moving Average (SARIMA) model in forecasting air temperature in Indonesia. The dataset used comprises 2-meter air temperature records in Indonesia from January 1940 to August 2024, obtained from ECMWF. The evaluation method applied is cross-validation with a rolling basis. The results show that the RMSE for the TBATS model is 21.3843%, while the SARIMA model has an RMSE of 21.2958%. These results indicate that SARIMA has a slightly better performance than TBATS. However, both methods perform well in forecasting air temperature in Indonesia, as their RMSE percentages are within an acceptable range. This research is expected to contribute to the scientific literature on air temperature forecasting in Indonesia and encourage further studies on hybrid models that integrate TBATS and SARIMA. Additionally, it may support efforts to mitigate the adverse impacts of air temperature changes in the country.
Co-Authors Anggia Sari Lubis, Anggia Sari SAM, Mu'arif Siti Masyithoh, Siti Wijaya, Madona Yunita Wipsar Sunu Brams Dwandaru Zulkifli, Dhea Urfina