Effectiveness of Educational Video Media on Junior High School Students’ Knowledge of Stunting Prevention: A Scoping Review

Abstract

Stunting remains a persistent public health problem with long-term impacts on human capital. Adolescents, particularly junior high school students, represent a strategic target group for early prevention, as they are future parents who will shape the intergenerational cycle of nutrition. The increasing use of video-based educational interventions—both in schools and through digital platforms—creates opportunities to deliver effective and engaging health promotion messages. This study aimed to map the evidence regarding the effectiveness of educational video interventions in improving junior high school students’ knowledge of stunting prevention. A scoping review was conducted using PRISMA-ScR guidelines and the JBI Manual for Evidence Synthesis. Literature searches were carried out in PubMed, Scopus, ScienceDirect, DOAJ, Google Scholar, and Indonesian repositories for studies published between 2020 and 2025. Thirty studies met the inclusion criteria. Most were quasi-experimental designs conducted in Indonesia, with delivery through classroom screenings, YouTube, TikTok, Instagram, and WhatsApp. Findings consistently demonstrated significant improvements in adolescents’ knowledge, with some reporting better attitudes and limited evidence of behavior change. Educational video shows promise as an effective medium for adolescent health promotion in stunting prevention, but future studies should adopt standardized outcome measures, longitudinal follow-up, and comparative evaluations across platforms.