The implementation of Clean and Healthy Living Behavior (PHBS) in schools, specifically the habit of Handwashing with Soap (CTPS), is still not optimal. At SDN 040/IV Jambi City, CTPS indicators were not met due to limited facilities and a lack of students' knowledge and attitudes. This low understanding increases the risk of infectious diseases such as diarrhea and ARI. Audiovisual-based health education was chosen for its effectiveness in combining sound and visual elements attractive to school-age children. This study aims to determine the effect of audiovisual-based health education on CTPS knowledge and attitudes among students at SDN 040/IV Jambi City.
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