摘要：Assessment of higher-order thinking skills (HOTS) provides few opportunities for students to develop more in-depth knowledge, serving students' ability to identify and solve their problems. One type of instrument for measuring HOTS objectively is the two-tier multiple-choice test (TTMCT). This research is part of the research and development stage, which is the implementation phase of the TTMCT instrument as a developed product. The objective of the study was to determine the feasibility of the TTMCT instrument developed to assess Indonesian elementary students' higher-order thinking skills (HOTS) on learning science in the concept of force, motion, and energy This study used to research and development method with collection technique using a questionnaire, test, and interview. The subjects in this research were 227 students, 65 teachers, 5 principals, 8 lectures. The results of the study show that TTMCT worthy development results were 25 items, had good content validity, "very high" reliability, "quite difficult" level of difficulty, and "very good" difference power. TTMCT applies to Indonesian Elementary School with high and medium criteria. This study concludes that the TTMCT instrument developed is considered feasible by senior teachers and users to measure higherorder thinking skills in the concept of force, motion, and energy in elementary schools.
