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Course Name

Clinical Improvement Project II CAPSTONE

Graduation Year

8-2026

Faculty Advisor

Dr. Sarah Lee

Abstract

This quality improvement project evaluated the effectiveness of a school-based educational intervention aimed at improving ninth-grade students’ knowledge and understanding of obesity prevention, nutrition, and physical activity. Adolescent obesity remains a significant public health concern, showcasing the need for early, evidence-based education. A total of 57 students participated in the two classroom sessions. Of these students, 49 completed the pre-intervention survey, and 48 completed the post-intervention survey. The intervention included an interactive presentation, group discussions, and educational materials. Student knowledge was assessed using a six-item survey administered before and after the session. The results demonstrated improvements across multiple knowledge areas, with the largest growth seen in understanding recommended fruit and vegetable intake (+46.4 percentage points) and factors that contribute to obesity (+36.2 percentage points). Mean knowledge scores increased from 4.12 (SD = 1.17) pre-intervention to 5.23 (SD = 0.99) post-intervention. This difference was statistically significant, t(95) = 5.025, p < .001, representing a large effect size (Cohen’s d = 1.02). The number of students achieving high scores (5-6 correct) increased, while low scores decreased. These findings indicate that a brief, school-based educational intervention can significantly improve adolescent health knowledge. Future efforts should evaluate long-term knowledge retention and expansion in further school settings

Keywords

Keywords: adolescent obesity, school-based intervention, health education

Improving Knowledge of Obesity-Related Risks and Healthy Lifestyle Behaviors in Adolescents

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