Abstract
The aim of study was to develop the three-tier multiple choice diagnostic test that was conform with criteria of content validity and reliability to identification students’ misconception about chemical equilibrium. The method of this study was development and validation methods. Fourteen items were developed in this study. Based on the value of content validity ratio (CVR), all items were valid. The value of reliability of items were developed is 0.759, it means that items were acceptable. The respondents of this study were 5 validators who are lecturers from Department of Chemistry Education and 35 senior high school students’ who was learned subject chemical equilibrium. Based on analysis of students’ answer were based on a determination key could be found students’ misconceptions that on dynamic equilibrium, concentration of reactant and product are same as common misconception in the student (57.1%).
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