Title: Effect of diet on healthy, unhealthy or varied eating (healthy and unhealthy) on students' grades in their final grades. Brief introduction: Assumption: The type of food students eat has an effect on a student's grades in their final grades. Group 1: Grades of students in their final grades who eat healthy Group 2: Grades of students in their final grades who do not eat healthy Group 3: Grades of students in their final grades who eat healthy and unhealthy who eat a variety Null hypothesis: there is no significant difference in a student's grades depending on whether their diet is healthy, unhealthy, or varied. Alternative hypothesis: At least one group has significantly higher grades in their final grades. Grades (dependent variable): refers to the grade level that a student achieves after completing a school year. Healthy food (independent variable): refers to eating healthy food and carrying certain restrictions with unhealthy food, following an eating pattern that includes a variety of nutritious foods and drinks. Unhealthy food (independent variable): refers to unhealthy food such as food bought on the street, these are those that are already cooked and processed. Varied food (independent variable): refers to food that is healthy and unhealthy, whose person eats both. Methods The students were divided into three groups (20 students per group) During the experimental stage, students in group 1 ate healthy food, students in group 2 ate unhealthy food, and students in group 3 ate varied food (healthy and unhealthy) throughout the semester. After completing the semester, the students took their final exam. Sample size: 60 students (20 per group) Sampling method: Simple random sampling is used, months before the test was carried out randomly, three groups were assigned for each class, the group focused on eating differently. Measurement methods: Grading of final grades. The alpha level is at 0.05 relative to the 95% confidence level. The post-hoc tests that I will use is the Trkiye post hoc. since it compares the average scores of different groups. It is also best used when the confidence interval is different.

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