<![CDATA[This study examines the effect of Instagram social media use and body image on students’ self-confidence at SMA Negeri 9 Purworejo. In the digital era, social media platforms such as Instagram have become a dominant space for adolescents to interact, present themselves, and seek social validation. Excessive exposure to idealized images can shape body image and influence self-confidence. Using a quantitative correlational design, the research involved 170 students selected through purposive sampling. Data were collected via Likert-scale questionnaires measuring Instagram use, body image, and self-confidence. Multiple linear regression analysis revealed that Instagram use and body image simultaneously have a significant positive effect on self-confidence. These findings indicate that healthy Instagram use and a positive body image contribute to greater self-confidence among students, highlighting the importance of social media literacy and self-acceptance in adolescence.]]>
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