Abstract
The purpose of the study was to develop and validate the assessment instruments utilized to measure students’ analytical thinking ability and chemical literacy on colligative properties. This study was research and development (R&D) implementing the ADDIE model. However, this study was limited to the validation of products. The assessment instrument was developed based on indicators of analytical thinking ability and chemical literacy and contained 15 items of questions as the result. Based on the validation result conducted by 3 validators, it was found that the average score of validation was 94% for the material; 91% for the language, and 91% for the construction. Moreover, the validation of the assessment of analytical thinking ability and chemical literacy was 93.33%. Thus, this assessment instrument was valid and feasible to be used in order to measure the students’ analytical thinking ability and chemical literacy on the colligative properties.
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