The intervention of the research is scenario-based first aid training for accidents and injuries.

The training program will consist of four sessions; the first two sessions will consist of a theoretical presentation enriched with visual content, the third session will involve interactive scenario-based applications with students, and the fourth session will focus on analysis after the scenario application.

Due to the lack of a standardized scale in the literature to measure the level of first aid knowledge of middle school students in accidents and injuries, the First Aid Questionnaire prepared by the First Aid Instructor Training Center of the Ministry of National Education was used, and a knowledge assessment form consisting of 25 multiple-choice questions was prepared by the researchers, taking into consideration the subject and purpose of the research. The questions in this form will be scored according to the number of correct answers, and the knowledge levels will be categorized as weak, acceptable, good, or excellent. Each question in the knowledge form has an equal score (4 points) and is scored out of 100. Accordingly, those scoring between 0-40 points will be considered weak, 40-60 points acceptable, 60-80 points good, and 80-100 points excellent.

To assess students' performance in the skills expected of them within the scenario, researchers prepared a skills checklist. Each step of the skill is graded from 1 to 3 (insufficient=1, partially sufficient=2, sufficient=3), and the total score for each skill will be evaluated. The 20-question skills checklist will be graded out of 100 points; students who can complete at least 70% of the steps in the skill list will be considered proficient in that task.