The reliability and validity of the problem posing learning model STEM-oriented instrument to improve self-regulated learning, and problem solving ability in calculus.

This research is part of the research on developing a STEM-oriented Problem Posing learning model to improve Independence and Problem Solving ability in Calculus course. This study aimed to describe the content validity and reliability of the instrument starting from the preliminary research stage, prototype stage, and assessment stage. 15 instruments will be validated using the V-Aitken coefficient and reliability with the ICC (Item Correlation Coefficient). The results of this study indicate that at each stage of the research has a valid and very valid value with a V-Aitken value above 0.4, and each instrument is also reliable with an ICC value above 0.5. Based on the results of this study, all instruments related to the development of the STEM-oriented Problem Posing learning model are suitable for use. [ABSTRACT FROM AUTHOR]