Voltaic cell test: Android-based assessment instrument on multiple representation oriented

This study aims to describe the android-based assessment instrument, the results of validation of android-based assessment instrument on multiple representation oriented. The method used design based research (DBR) using three stages of analysis, design, and development. This assessment instrument consist of ten two-tier multiple choice questions developed in the android application. The results of the validation test on all aspects of material/content, aspects of clarity, aspects of language, and aspects of technology are declared valid. The product has passed the revision process based on suggestions from the validators. The distinguishing power was good and the level of difficulty of the questions was sufficient. These results indicate that an android-based assessment instrument on voltaic cell is valid to be used as an assessment instrument for voltaic cell concept.