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All Journal Jurnal Penelitian Pendidikan Matematika dan Sains
Yurizka Melia Sari
State University of Surabaya
Education Mathematics Social Sciences Other

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Validitas Lembar Tugas Proyek STEM pada Topik Perbandingan untuk Menganalisis Berpikir Kritis Siswa SMP Yassirly Amry; Yurizka Melia Sari
JURNAL PENELITIAN PENDIDIKAN MATEMATIKA DAN SAINS Vol. 10 No. 1 (2026): JPPMS Vol. 10 No. 1 (2026)
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jppms.v10n1.p27-34

Abstract

This study aims to examine the content validity of a STEM project task sheet instrument developed to analyze junior high school students' critical thinking skills. The task sheet was developed based on five indicators of critical thinking and was validated by two experts in mathematics education. Content validity was assessed using Aiken’s V index with a 1–4 Likert scale to measure the level of agreement among experts regarding the relevance of each item to the critical thinking indicators. The analysis results showed that, of the 11 items evaluated, 2 items obtained an Aiken’s V value of 0.83 and 9 items obtained a value of 1.00. These findings indicate that the developed task sheet instrument has high content validity and is suitable for use in analyzing junior high school students' critical thinking skills.
Co-Authors Yassirly Amry