IDENTIFIKASI PEMAHAMAN SISWA SMA KELAS XI IPA TENTANG KARAKTERISTIK PARTIKEL MATERI DENGAN MENGGUNAKAN TWO TIER DIAGNOSTIC TEST
This study aims to identify the understanding of class XI IPA students about the characteristics of material particles at SMAN 1 Singkep. The type of research used is quantitative descriptive research. The test instrument used is a two-tier diagnostic test by dividing several concept categories, namely: (1) the concept of distances between molecules in solids, liquids and gases, (2) the concept of diffusion of liquids and gases, (3) the concept of the effect of intermolecular forces on phase changes . The results obtained at SMAN 1 Singkep are 53.5% including the criteria for understanding "moderate". Based on the research results, it can be concluded that students' understanding can be identified using a two tier diagnostic test.