Critical Thinking Instrument Test (CTIT): Developing and Analyzing Sundanese Students’ Critical Thinking Skills on Physics Concepts Using Rasch Analysis

The purpose of this study is to develop and analyze the Critical Thinking Instrument Test (CTIT) of the Sundanese scholar at Cibeureum Tasikmalaya City West Java. The research method has been applied by the ADDA model (analyze, design, develop, and applicate). Participants who elaborate in this research are 26 (11 male students’, namely “Pameget” and 15 female students’, namely “Istri”, the average age of them are about 17 years of Sundanesetribe). The CTIT contains 10 questions that have been already analyzed by Rasch analysis. Rasch analysis explains the Sundanese-scholars at the Cibeureum region only answer confidently on easy questions. The data analysis including person reliability, item reliability, the validity of CTIT. Based on the analysis, it can be concluded that CTIT was reliable and valid to be implemented to assess students’ critical thinking on fluid static although some items need to be revised.