Analysis of Physics Misconceptions Elasticity and Hooke's Law in High School Students with Certainty of Response Index Method

This research aims to analyze the level of understanding of students' concepts and misconceptions using the Certainty of Response Index (CRI) method in class XI elasticity and Hooke's law material at Senior High School Makassar in Indonesia. This type of research is Expost Facto with a quantitative descriptive research design. The sample was selected using a purposive sampling technique and Class. The analysis results from the research obtained show that the level of understanding of the concept of elasticity and Hooke's law in class XI MIPA students at Senior High School Makassar in Indonesia is in the low category with a percentage of 21.67%. And misconceptions are in the medium category with a percentage of 35.78%. The conclusion of this research is that the percentage level of concept understanding is in the low category and the level of misconceptions and not understanding concepts is in the medium category, so it is necessary to improve the quality of the learning process and solutions to overcome the low level of concept understanding and high levels of misconceptions experienced by students in Indonesia.