Validation of science virtual test (SVT) to assess 9th grade students’ critical thinking on living things and environmental sustainability theme

Critical thinking, communication, collaboration, and creativity are four skills that required for 21st century education. This descriptive research is focus on students’ critical thinking and specifically how to validate the science virtual test (SVT) to assess that skill. There are 21 students (9 grade/15 years old) in Kuningan city West Java as the participants while science teacher and expert as the validators. The science virtual test (SVT) as a research instrument has constructed in multiple choice based on eight elements and 26 sub elements critical thinking. Critical thinking which developed by Inch et al. consists of eight elements namely question at issue, purpose, information, concepts, assumptions, point of view, interpretation and inference, implication and consequences. Curriculum analysis, expert judgment, legibility test and trial test are four steps in this research. The test item criterion based on trial test are accepted, accepted but need to be revised, and rejected. The reliability of the test 0.43. It means the SVT that used is reliable to assess 9th grade students’ critical thinking.