DEVELOPMENT OF AN INSTRUMENT TOOL ASSESSMENT FOR INTEGRATED STEM PROJECT-BASED CHEMISTRY LEARNING

Abstract

Developing a learning model requires a design in accordance with the analysis of student needs and the applicable curriculum. The learning tool design consists of: RPP, LKPD, learning media including PPT and innovative learning videos. Before use, the learning device is first validated using the instrument that has been designed. The aim of the research is to determine the validity and reliability of the learning tool assessment instruments that have been designed before being tested on users, in this case teachers and students. The research method uses the ADDIE approach, for the validity test the CVI (content validity index) value is used, while the reliability test uses Cronbach's Alpha. The learning device assessment instrument was assessed by five validators. The research results show that the CVI value of the questionnaire validation assessment instrument is 1) RPP = 0.827; 2) LKPD=0.831; 3) Video=0.831; and 4) PPT=0.822 is in the high validity category. Meanwhile, for reliability, the average Cronbach's Alpha value obtained from each assessment instrument is 0.709 > 0.6, which is classified as reliable. For the learning tool assessment instrument in the form of lesson plans, the average value of CVI was 0.821 and LKPD was 0.815, which is in the high validity category, while the average value of CVI Video was 0.781 and PPT was 0.80, which was categorized as medium validity. Overall, the learning tool assessment instrument assessment questionnaire is valid and can be used as a research measuring tool.