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All Journal Pendas : Jurnah Ilmiah Pendidikan Dasar Tsaqofah: Jurnal Penelitian Guru Indonesia
Fuja Novitra
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ANALISIS UJI VALIDITAS DAN RELIABILITAS INSTRUMEN TES KEMAMPUAN BERPIKIR KRITS PADA MATERI FLUIDA STATIS arifatin nadia; Desnita; Hidayati; Fuja Novitra
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 03 (2026): Volume 11 Nomor 03, September 2026 Published
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i03.59894

Abstract

Critical thinking skills are one of the skills of the 21st century that need to be measured using valid and reliable instruments. Therefore, this study aims to analyze the feasibility of critical thinking ability test instruments on Static Fluid materials through content validity, empirical validity, and reliability tests. This study uses a quantitative approach with a descriptive method. The research subjects consisted of three lecturers of Physics Education at Padang State University as validators and 34 grade XI students of SMAN 6 Padang. The research instrument included expert validation sheets as many as 20 statement items and a critical thinking ability test in the form of six phenomena-based essay questions developed into 24 questions based on Facione's critical thinking indicators, namely interpretation, analysis, evaluation, and inference. The validity of the contents was analyzed using the Aiken's V index, the validity of the item using Pearson's Product Moment correlation, and the reliability using the Cronbach's Alpha coefficient. The results showed that the value of Aiken's V ranged from 0.7222–0.8000 so that all aspects of the instrument were declared valid. The results of the empirical validity test showed that 20 out of 24 questions were valid, while 4 were invalid. The reliability test of 20 valid questions obtained a Cronbach's Alpha value of 0.912 with a very high category. Thus, the test instruments developed meet the criteria of validity and reliability so that they are suitable for measuring students' critical thinking skills on Static Fluid materials.
Analisis Validitas E-LKPD Fluida Statis berbasis Dual Space Inquiry Framework dalam Menstimulasi Keterampilan Proses Sains Nada Afriza; Fuja Novitra; Fatni Mufit; Rio Anshari
TSAQOFAH Vol 6 No 1 (2026): TSAQOFAH: Jurnal Penelitian Guru Indonesia
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/tsaqofah.v6i1.7962

Abstract

The development of valid digital teaching materials is a key prerequisite for stimulating students’ science process skills in physics learning, particularly on static fluid topics for Phase F students at senior high schools/Islamic senior high schools (SMA/MA). This study aims to analyze the validity level of a Static Fluid E-Worksheet (E-LKPD) based on the Dual Space Inquiry Framework (DSIF) as a digital learning material designed to foster students’ science process skills. This Research and Development (R&D) study is limited to the validity phase and employs the ADDIE development model, encompassing the analysis, design, and development stages. Data were collected using expert validation sheets and analyzed with Aiken’s V formula. The validation process involved three expert validators in Physics Education who assessed six components: content feasibility, visual communication, instructional design, software utilization, DSIF stages, and indicators of science process skills. The analysis results show that all validity aspects obtained an average Aiken’s V value of 0.90, categorized as very valid. These findings indicate that the DSIF-based E-LKPD meets criteria of substantive accuracy, presentation quality, visual design, and pedagogical alignment, and is thus suitable for use as a digital teaching material in static fluid physics learning. The developed product has the potential to be used in inquiry-based learning and to support the enhancement of students’ science process skills; therefore, further studies are recommended to examine its practicality and effectiveness through direct implementation with students so that its impact and applicability in real learning contexts can be understood more comprehensively.
Co-Authors Desnita Fatni Mufit Fuja Novitra Hidayati Nada Afriza Rio Anshari