Impact of Educational Intervention of Knowledge about Puberty in Indonesia’s Junior High School Students Nur Rochmah1, Muhammad Faizi1*, Yuni Hisbiyah1, Rayi Kurnia Perwitasari1, Zakiyatul Faizah1, Calcarina Nira Pramesthi2, Dinar Ardi2, and Feelin Fatwa2 Abstract Purpose: The primary aim of this study was to determine the effectiveness of educational interventions in