How to Develop Test Instruments for Analyzing Creative Thinking Skills (TI-CTS) through Project-Based Learning with STEM? Ghina Aghnia Nur Assyifaa(1*), Lilik Hasanah(2) and Hera Novia(2)
1 Postgraduate Physics Education, Universitas Pendidikan Indonesia, Bandung, Indonesia
2 Department of Physics Education, Universitas Pendidikan Indonesia, Bandung, Indonesia
Abstract
The results in purpose are to develop and analyze the quality of the item instrument test Creative Thinking Skills to Project-Based Learning with STEM. The research method uses a 3D+1I model, namely Define, Design, Development, and Implement. For developing this test, consists of 9 essay questions were administered to the high school of 11-grade students with 32 participants of students. the TI-CTS contains 9 questions analyzed by the Rasch model. The results of this study indicate that the TI-CTS has a usable validity and a reliability level of 0.93 in the very good category with a hard and easy item difficulty level. Based on expert judgment and analysis using the Rasch model, the test instruments were well developed and could be used to measure student^s creative thinking skills.
Keywords: Test Instruments- Creative Thinking Skills- Project-Based Learning with STEM
