As non-traditional researchers, high school students represent a potential Trojan horse for changing scientific practices and norms. This 4-week project-based learning course aims to complement the existing Advanced Placement (AP) psychology curriculum for high school students, which does not currently include openness or transparency in research. The Catalyst will collaborate with an AP Psychology teacher or PhD student to train over 125 Yorktown High School students to conduct their own psychological experiments using transparent, open, and reproducible research practices, applying the scientific method to answer research questions regarding student character development and school climate, using the OSF for pre-registration, collaboration, and data sharing.