Identification and analysis of students misconception in chemical equilibrium using computerized two-tier multiple choice instrument S Yamtinah1*, N Y Indriyanti1, S Saputro1, S Mulyani1, M Ulfa1, L Mahardiani1 and T Satriana1
1Program Magister Pendidikan Kimia, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, Kentingan, Surakarta 57126, Indonesia
Abstract
The concept of chemical equilibrium is fundamental for students to understand. This concept becomes a prerequisite knowledge for many of Chemistry topics such as acid and base, hydrolysis, buffer and solubility. The characteristics of chemical equilibrium topic that have abstract concept are difficult to understand. It drives students to misconceptions. The aim of this study was to investigate the students misconception of chemical equilibrium. Formative test using Computerized Two-Tier-Multiple-Choice (CTTMC) instrument had been conducted. The participants of this study were 158 students from three different schools. The CTTMC instrument was developed in three indicators of chemical equilibrium consisting of 15 questions to identify and analyse students misconception. The students responses were marked in three levels of understanding (understand, not understand and misconception). From the study, it was found that the students adequately understood the chemical equilibrium, but still had misconception especially for explaining dynamic equilibrium and equilibrium constants. The details of the students misconceptions were discussed. For the future research, the information of their misconception can be used as the basis to address the misconception in appropriate way
Keywords: misconception. chemical equilibrium, two-tier instrument
