The accountability era has produced school grading systems that purport to evaluate school effectiveness yet utilize hegemonic formulas that label low-scoring schools and neighborhoods, depriving them of incentive monies tied to their school grades. This quantitative study analyzed the publicly available data of 106 elementary schools in one large urban district in Florida through the lens of Effective Schools Research. Significant findings revealed that the work of Edmonds (1982) and Lezotte (1991) supports a growth model when it comes to school-based assessments and outcomes. The schools in the sample earned cumulative incentive rewards over time that were negatively correlated with the schools' average percentage of economically disadvantaged students. The lower a school's average percentage of economically disadvantaged students, the higher the school's average grade. This finding held true for the "A"-graded schools with the lowest average economically disadvantaged percentages from 1999 to 2019. This study also found that the schools in the sample with the larger average percentages of economically disadvantaged students would exhibit higher school grades if calculations using only their language arts and math gains were used. These findings have implications for how we might rebuild the assessment of our neighborhood schools and transform the policy structures that contribute to social and educational inequities. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]