Foreign body aspiration occurs as a result of partial or complete airway obstruction. In the case of complete obstruction, mechanical asphyxia can lead to insufficient ventilation and oxygenation, leading to death. Basic life support education is generally provided in schools in Turkey using traditional education methods. First aid is one of the important professional skills that nurses need. Due to the crowded classroom environment, not all students can clearly see the skill applications performed by the instructors, and the applications can be interrupted by the students. The World Health Organization recommends mobile-based education applications as a comprehensive education method for health systems. The aim of this study is to compare the effects of Video Game and Classical Education methods in Adult Airway Obstruction education given to nursing students in a pre-test-post-test control group and repeated measures experimental design type. No international or national research was found on the subject. Therefore, the study is original. The research is a mixed-methods research with an embedded design model. The reason for choosing this type is that presenting qualitative and quantitative methods together allows researchers to see different perspectives and to reveal the relationships between the complex layers of the research questions in a clearer and more understandable way. The quantitative phase was conducted as a randomized controlled experimental design, while the qualitative phase was conducted using a simultaneous embedded design in the phenomenological design. The "Mixed Methods Research Methodology Development Checklist" was used as a guide in reporting this research. The sample size was calculated as 60. In data collection, information on socio-demographic characteristics will be collected with the "Introductory information form, semi-structured questionnaire form, Adult Airway Obstruction Prevention and Management Information Form and Adult Airway Obstruction Prevention and Management Skills Form". The surveys will be applied to the adults participating in the study through face-to-face interviews. Semi-structured questions will also be asked to 20-25 volunteers from different age groups and genders participating in the survey. Content analysis was used in the analysis of the qualitative data. Semi-structured questions were directed to students using a face-to-face interview technique and their answers were recorded with a voice recorder. The voice recordings were listened to repeatedly by the researchers and deciphered. After deciphering, qualitative analysis was performed with the code-category-thematic analysis process. Methodologically, inductive coding was followed in the analysis of the data. Max Qualitative Data Analysis (MAXQDA) Analytics Pro2024 program was used in the analysis.

Rigor and reflexivity Triangulation and verification; Qualitative analysis was performed by the second author, the other two authors examined all stages of the analysis to achieve the highest data quality and tested and approved the analysis according to the accuracy of each other's notes. This stage ensured the reliability of the analysis and verified the coding of the data. With this method, the reliability of the research, the meticulousness, credibility, reliability, transferability and appropriateness of the collected data were tested.

In quantitative data; The data belonging to the participants in the study were analyzed using SPSS Statistics 20.0. Descriptive statistics (n, %) were given for categorical variables. Compliance with normal distribution was assessed with the "Kolmogrov-Smirnov test". In order to test whether the scores obtained from two unrelated samples of quantitative variables differed significantly from each other, the "independent sample t test" was applied for parametric testing. In the analysis of the data, "Chi-square analysis" was performed to see the differences of qualitative data according to groups. "Pearson correlation test" was applied to evaluate the relationship between knowledge and skill level scores. "Reliability Analysis" was performed to test the reliability of the scales.

Inclusion Criteria:

• Being an undergraduate student,
• Having taken an Internal Medicine and Surgical Nursing course,
• Not having previously received Adult Airway Obstruction Prevention and Management training,
• Not having any previous experience with video game-based learning in healthcare and not having problems with internet access.

Exclusion Criteria:

• Students who did not agree to participate in the study,
• Students who did not meet the inclusion criteria

The researcher (3) was not involved in any stage of the training. He made the students practice on the mannequin without knowing their groups and collected the data. In this direction, a single blind technique was used. The interview for the qualitative data was conducted by the researcher (2) and he collected the qualitative study data as audio recordings.