Mobile Game-Based Versus Classic First Aid Education in Adolescents: Randomized Controlled Trial

The goal of this three-arm, stratified randomized controlled trial is to learn whether a mobile serious game improves first aid knowledge in high school students aged 14 to 17 years compared with classic first aid education and with an attention control session. The main questions it aims to answer are: * Does first aid education delivered through a mobile serious game increase first aid knowledge compared with an attention control session? * Does classic first aid education increase first aid knowledge compared with an attention control session? * Is there a difference in first aid knowledge between students who learn through the mobile game and students who receive classic education? Participating students are randomly assigned, within their grade level, to one of three arms: * Mobile game arm: students learn first aid individually through an Android-based serious game. * Classic education arm: students receive standardized first aid education covering the same learning objectives. * Attention control arm: students receive a nutrition education session on reading food labels, unrelated to first aid, and receive first aid education after the study. Before the session, all students complete a short questionnaire and a first aid knowledge test in their allocated room. All three sessions last about 8 to 10 minutes and take place at the same time in separate rooms on a single day. All students complete the same first aid knowledge test again immediately after the session.

Inclusion Criteria: * Enrolled in grades 9-12 at the participating high school * Aged 14-17 years * Written informed consent from a parent or legal guardian * Written assent from the student * Able to read Turkish and use a touchscreen device Exclusion Criteria: * Holding a first aid certificate approved by the Ministry of Health * Visual, hearing, or motor impairment that prevents use of the mobile game or completion of the test * Participation in the pilot study