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Analisis Butir Soal Berpikir Kritis Fisika pada Materi Kisi Difraksi dengan Model Rasch Kusniati, Rani; Rosana, Dadan; Istiyono, Edi
COMPTON: Jurnal Ilmiah Pendidikan Fisika Vol 11 No 2 (2025): Compton: Jurnal Ilmiah Pendidikan Fisika
Publisher : Prodi Pendidikan Fisika Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/cjipf.v11i2.19962

Abstract

This study aims to analyze the quality of a physics critical thinking test focused on the topic of diffraction grating using the Rasch model, with the aid of QUEST software. The research employed an evaluative methodology with a descriptive quantitative approach. The subjects consisted of 30 eleventh-grade students from SMA Budi Mulia Dua Yogyakarta. The test instrument comprised 10 multiple-choice physics questions, which were developed and validated in collaboration with physics teachers. These questions specifically addressed the concept of diffraction grating, aiming to measure students’ critical thinking skills in that domain including interpretation, analysis, evaluation, inference, and explanation. Data analysis was conducted using the Rasch model via QUEST software to evaluate item fit, reliability, and consistency. The results showed that 8 out of the 10 items had INFIT MNSQ values ranging from 0.77 to 1.33, indicating a good fit with the Rasch model. However, items 6 and 9 were found to have INFIT MNSQ values outside the acceptable range, suggesting that they were misfitting and should be revised and refined to better align with the intended construct. Despite this, the items may be revised for future use. The OUTFIT t values for all items were ≤ 2.00, confirming their usability. Additionally, the item reliability estimate was 0.84 and the case reliability estimate was 0.56, demonstrating high internal consistency and indicating that the test is suitable for measuring students' critical thinking skills in physics
Perancangan OpenChart Sebagai Solusi Visualisasi Data untuk Optimalisasi Penjualan Online Kerajinan Tangan di Kota Payakumbuh Kusniati, Rani; Annas, Firdaus; Desriana, Desriana
JOVISHE : Journal of Visionary Sharia Economy Vol. 3 No. 1 (2024): Edition June 2024
Publisher : Yayasan Lembaga Studi Makwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57255/jovishe.v3i1.520

Abstract

The development of information and communication technology, especially the internet, has opened up new opportunities for crafters in Payakumbuh City as well as other micro, small and medium enterprises (MSMEs) to market their merchandise online. However, many MSMEs still face difficulties in utilising internet-based sales data to improve their business strategies. Therefore, this research aims to develop OpenChart as a data visualisation tool that can help handicraft MSMEs in Payakumbuh increase online sales. This research uses the ADDIE (Analysis, Design, Development, Implementation, Evaluation) development model combined with a Research and Development (R&D) approach. The ADDIE stages include needs analysis, system design, application development, implementation, and evaluation. In the needs analysis stage, challenges faced by MSMEs in utilising sales data were identified. Then, the OpenChart system was designed and developed to provide an easy-to-understand sales data display. Based on the research results, OpenChart allows Payakumbuh Handicraft MSMEs to view sales data in real-time. With this feature, businesses can analyse sales trends, identify the most popular products, and optimise their marketing strategies more effectively, thus increasing business competitiveness in the digital era. Translated with DeepL.com (free version)