Charter Schools and Mathematics Achievement in the State of Georgia

Raymond D. Mooring


This study uses hierarchical linear modeling (HLM) and factorial analysis of covariance (ANCOVA) to investigate the relationship between a school’s charter status and Math achievement. After accounting for school gender and ethnicity effects, charter school status is associated with Math achievement. Specifically, the initial status of Math achievement varies depending on ethnicity and gender, but the growth rate does not. Furthermore, district characteristics help to explain the charter school effect on Math achievement. Charter schools outperform traditional public schools when they receive an average amount of instructional funds. To this end, the charter gap in Math achievement decreases over time in districts that spend on instruction and have a substantial amount of minorities. When compared to traditional public schools with similar characteristics, charter schools with high percentages of Black students and/or low percentages of females outperformed their matched traditional public school counterparts. 

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