As a result of the Every Student Succeeds Act (ESSA), schools and districts are encouraged to implement school-wide initiatives to improve outcomes for all students. In accordance with the ESSA, this research study investigated the relationship between school improvement planning and the implementation of school-wide interventions. The study examined survey and extant data from five high schools in a Midwestern state to analyze academic and behavior-related school-wide efforts and their relationship to school improvement. The data showed a statistically significant relationship between school improvement planning and the state's school improvement report card of student performance (Kendall Rank-Order Coefficient, p = 0.025). These findings suggest that schools might consider integrating their school-wide efforts into school improvement planning.