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Sulvianti, Arifah
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Development of Test Instrument to Assess Students' Understanding on Macroscopic, Sub-Microscopic, and Symbolic Levels of Acid-Base Topics Using Rasch Model Sulvianti, Arifah; Aini, Faizah Qurrata
Journal of Educational Sciences Vol 7. No. 2. April 2023
Publisher : FKIP-Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jes.7.2.p.282-295

Abstract

Students' conceptual understanding on acid-base topic has not been assessed comprehensively in multiple representation. The test instrument is needed to determine levels of students' understanding on acid-base topic comprehensively. This research developed an instrument to asses students' understanding on acid-base concept based on macroscopic, sub-microscopic and symbolic levels that is claimed valid, reliable, had good difficulty index and discriminatory item. This research is Research and Development (R&D) using Rasch model. The research procedure adopted ten stages by Wei, et al in 2012. The research instrument is questionnaire sheet given to subjects from chemistry lecturers and chemistry teacher. The data were analyzed using Rasch model assisted by minifacet and ministep software. The exact agreement value is 89,2% which have small range from the expect agreement with a percentage of 89,5%. It’s mean that, there is a fit between the results of expert's agreement and the results of estimated model. The pilot test results showed that all items have reached valid criteria based on the MNSQ, ZSTD, and Pt-Mean Corr. The reliability value is 0,80 in the good category. Difficulty index has variations of easy, medium, and difficult items. The discriminatory item is able to distinguish three levels of student ability.
Development of Test Instrument to Assess Students' Understanding on Macroscopic, Sub-Microscopic, and Symbolic Levels of Acid-Base Topics Using Rasch Model Sulvianti, Arifah; Aini, Faizah Qurrata
Journal of Educational Sciences Vol. 7 No. 2 (2023): Journal of Educational Sciences
Publisher : FKIP - Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jes.7.2.p.282-295

Abstract

Students' conceptual understanding on acid-base topic has not been assessed comprehensively in multiple representation. The test instrument is needed to determine levels of students' understanding on acid-base topic comprehensively. This research developed an instrument to asses students' understanding on acid-base concept based on macroscopic, sub-microscopic and symbolic levels that is claimed valid, reliable, had good difficulty index and discriminatory item. This research is Research and Development (R&D) using Rasch model. The research procedure adopted ten stages by Wei, et al in 2012. The research instrument is questionnaire sheet given to subjects from chemistry lecturers and chemistry teacher. The data were analyzed using Rasch model assisted by minifacet and ministep software. The exact agreement value is 89,2% which have small range from the expect agreement with a percentage of 89,5%. It’s mean that, there is a fit between the results of expert's agreement and the results of estimated model. The pilot test results showed that all items have reached valid criteria based on the MNSQ, ZSTD, and Pt-Mean Corr. The reliability value is 0,80 in the good category. Difficulty index has variations of easy, medium, and difficult items. The discriminatory item is able to distinguish three levels of student ability.
Pemanfaatan Kawat Bulu menjadi Kerajinan Tangan untuk Meningkatkan Kreativitas Siswa Hafizah, Hafizah; Rini Simamora, Indah Anda; Rahayu, Indah Dwi; Khairani, Indah; Khairunnisya, Khairunnisya; Gamiarsih, Antika; Sulvianti, Arifah; Sari, Atika Pratama; Amri, Elvianti; Yusri, Hilman; Astuti, Astuti; Noviardila, Iska
Jurnal Pengabdian Masyarakat (ABDIRA) Vol 5, No 3 (2025): Abdira, Juli
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/abdira.v5i3.742

Abstract

This study aims to evaluate the effectiveness of the implementation of a contextual learning-based leadership project through handicraft activities with wire bristles as the main material at UPT SD Negeri 001 Salo. This project is designed to improve students' creativity, fine motor skills, and self-confidence through the Project Based Learning (PjBL) approach. This study uses a qualitative descriptive approach with a case study method, which aims to describe in depth the process and results of implementing the learning leadership project at UPT SD Negeri 001 Salo. The main focus of the study is on the use of wire bristles as a medium in learning Arts and Crafts. The results show that the project not only succeeded in achieving its main objectives, but also increased student participation, strengthened collaboration between teachers, and created a more active and enjoyable learning atmosphere. These findings reinforce the importance of contextual learning activities that directly involve students and provide space for exploration of creativity. Recommendations are directed at developing sustainable projects and increasing resource support and community participation.
Co-Authors Aini, Faizah Qurrata Amri, Elvianti Astuti - Gamiarsih, Antika Hafizah Hafizah Khairani, Indah Khairunnisya, Khairunnisya Noviardila, Iska Rahayu, Indah Dwi Rini Simamora, Indah Anda Sari, Atika Pratama Yusri, Hilman