OSW-CTST: A Developing Study of Oscillation and Sound Wave-Critical Thinking Skills Test

Nowadays, the main goal of education in the world is required to promote critical thinking skills for junior high school students in term of being better future-live. To analyze students' critical thinking skills, we developed critical thinking test items on Oscillation and Sound Wave named Oscillation and Sound Wave-Critical Thinking Skills Test (OSW-CTST). The aim of this study is to develop the test of critical thinking skills through the development model. The development model which is utilized is ADDIE (Analyze, Design, Development, Implementation, and Evaluation). The OSW-CTST items have already been developed through Ennis's indicators of critical thinking skills. The critical thinking indicators which were utilized in this study are: (1) identifying/formulating the criteria of possible answers, (2) identifying reasons or premises, (3) explaining the hypotheses, (4) defining the scientific terms and considering the definitions, and (5) choosing the possible criteria as a solution to the problems. On validity test to experts, the OSW-CTST get the score greater than 4.3 of 5. The test items difficulty, distinguishing power, validity, and reliability value and criteria are good enough. In conclusion, critical thinking skills test on oscillation and sound wave could be well developed though ADDIE model and it could measure the junior high school students' critical thinking skills.