Development of the Structure of Matter Diagnostic Test and Determination of Misconceptions
Abstract
This study aims to develop a valid and reliable two-tier open-ended diagnostic test that can be administered to 5th and 6th-grade students, in line with the 2018 and 2024 Science Curriculum learning outcomes related to the Structure of Matter, and to identify students' misconceptions. This study, which followed Treagust's (1988) test development steps, was structured based on an exploratory sequential design. The test includes questions on the "particulate structure of matter", "density", "matter and heat", and "fuels and human-environment interaction". The data were obtained from 350 secondary school students. The face and content validity of the test were established, and as a result of the reliability analysis, the average difficulty value was calculated to be .42, and the average discrimination value was calculated to be .44. The KR-20 reliability coefficient was calculated to be .75, the Cronbach Alpha coefficient was .81, and the Pearson Correlation coefficient was .91. As a result of the study, a valid and reliable two-tier "Structure of Matter Diagnostic Test" containing 18 items aimed at determining misconceptions was introduced to the literature. In addition, as a result of the content analysis, four misconceptions not encountered in the literature were identified, and a total of 39 misconceptions were identified.
Keywords
Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
Fen Bilgisi Eğitimi
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
29 Nisan 2026
Gönderilme Tarihi
9 Mayıs 2025
Kabul Tarihi
10 Mart 2026
Yayımlandığı Sayı
Yıl 2026 Cilt: 28 Sayı: 2026