Analysis of Students Misconception using Two-Tier Multiple Choice Diagnostic Test on Electrolyte and Nonelectrolyte Topic in SMAN 2 Padang

Abstract

This research aims to (1) knowing whether there are misconceptions of 10^th grade students at SMAN 2 Padang on the topic electrolyte and nonelectrolyte solutions and (2) the percentage of 10^th grade students at SMAN 2 Padang who have misconceptions about the topic electrolyte and nonelectrolyte solutions. This research uses a two-tier multiple choice diagnostic test instrument consisting of 14 item questions. The method used in this research is a quantitative descriptive approach. The sampling technique was taken using a simple random sampling technique. Data collection techniques were carried out through tests given to students of class X MIPA 6 which were attended by 40 people. In this research, the population was all  of 10^th grade students at SMAN 2 Padang, while the sample was students of class X MIPA 6. The results of data processing in this research indicate that in general students of class X MIPA 6 have misconceptions with an average percentage of misconceptions of 36.94%. Students experience misconceptions on the sub-concept of the properties of the electrolyte solution by 22.5%, the sub-concept of chemical bonds and electrolyte properties of 43.75%, and the sub-concept of the electrical conductivity of the solution has the highest percentage of misconceptions, which is 44.58%.