Misconception Level Analysis of Prospective Physics Teacher Students in Geometric Optic Using Multiple-Misconception Revealing Test

This study aims to identify the level of misconceptions that prospective physics teacher students have on the subject of optics. The diagnostic test instrument developed follows the Multiple-Misconception Revealing Test (MMRT) format. The research subjects are prospective physics teacher students in the Physics Education Department who have graduated Basic Physics course and are programming the Optical Waves course in the even semester of 2021. MMRT is a test in the form of open questions and is at the creative level, namely in the form of building with certain rules. This test requires solving problems with additional explanations so that it is easy to identify true or false quickly and arouse curiosity in students to solve them. Problem-solving is equipped with a level of confidence and an explanation of why they answered that way. The results of this study will be used as a first step to developing appropriate learning strategies and teaching materials to be able to remediate misconceptions that occur in students. The test used consisted of 10 items consisting of 7 items about reflection by a mirror and 3 items about refraction. The results of the analysis showed that 14.7% of students experienced misconceptions-1, 13.7% of students experienced misconceptions-2 and, 10.5% experienced misconceptions-n.