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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA)
Mhd. Ridwan Fadli
Universitas Malikussaleh
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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Analysis of the Characteristics of the Ethnoscience-Based Numeracy Test Instrument Using the Rasch Model Muliani Muliani; Nanda Novita; Mellyzar Mellyzar; Ali Imron Pasaribu; Mhd. Ridwan Fadli
Jurnal Penelitian Pendidikan IPA Vol 8 No 5 (2022): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i5.2285

Abstract

The numeracy ability of students in Indonesia is in a low category based on PISA results from 2000 to 2018. So, efforts are needed to strengthen numeracy skills through the development of ethnoscience-based numeracy test instruments. The purpose of this study was to analyze the characteristics of the ethnoscience-based numeracy test instrument using the Rasch model.  The subjects of this study were students of SMPN Arun and SMPS Sukma Bangsa, Lhokseumawe City, totaling 123 students. The number of questions to be analyzed in the test is 68 items. Analysis using Winsteps software. The results of the analysis showed that the ethnoscience-based numeration instrument in this study was declared reliable. 59 of the 68 items were said to be valid, with details of 32 valid items eligible to be used and 27 valid items needing to be revised for improvement before being used. This instrument can be used to measure subjects who have ethnoscience-based numeracy skills in the low, medium, and high categories, so to examine ethnoscience-based numeracy skills students can use this instrument.
Digital Assessment Tools: As a Media for Assesing High School Science Learning Mellyzar Mellyzar; Riza Andriani; Isna Rezkia Lukman; Muttakin Muttakin; Eva Wati; Ali Imron Pasaribu; Mhd. Ridwan Fadli
Jurnal Penelitian Pendidikan IPA Vol 10 No 3 (2024): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i3.6416

Abstract

This research is to produce a suitable digital assessment tool for high school students' in chemical literacy with validity, reliability, levels of difficulty and discrimination power. The research metodology is Research and Development (R&D) using the Oriondo and Dallo-Antonio model. The research stages include planning the test instrument, testing, determining empirical validity, determining reliability, and interpreting test scores. In the planning (instrument creation), where the validation score estimates by experts in content, language, construction, and media are above 0.8, indicating that the test instrument is considered suitable for further testing to estimate validity, reliability, difficulty levels, and discrimination power. Out of the 25 developed questions, 24 fit the Rasch model. The reliability of Instrument Part I is 0.67, and Part II is 0.65, falling into the "sufficient" category. The questions exhibit varied difficulty levels, ranging from very easy to very difficult, with a standard deviation (SD) of 0.21 for Part I and 0.14 for Part II. The separation achieved by Instrument Part I is into 4 ability groups, while Instrument Part II separates into 2 ability groups. The distractors for multiple-choice questions fall into the "good" and "very good" categories, fulfilling their intended function effectively.
Co-Authors Ali Imron Pasaribu Eva Wati Lukman, Isna Rezkia Mellyzar, Mellyzar Muliani Muliani Muttakin Nanda Novita Riza Andriani