Advanced accreditation impact regarding the achievement gap between schools of poverty and schools of affluence for secondary education in a five-state regio

The purpose of this quantitative study was to determine whether there are significant differences among AdvancED accredited middle and high schools that consist of those with high poverty populations and those affluent accredited schools regarding school effectiveness. This study examined whether there was a significant difference between schools of poverty and affluent schools on reading and mathematics state assessments. This study also examined which AdvancED school effectiveness accreditation standards predict student achievement success through standardized test performance in both reading and mathematics.;Is there a significant difference between accredited schools of poverty and accredited affluent schools in the seven AdvancED school effectiveness accreditation standards? Is there a significant difference between AdvancED accredited schools of poverty and accredited affluent schools in state achievement scores in reading? Is there a significant difference between AdvancED accredited schools of poverty and accredited affluent schools in state achievement scores in mathematics? Are the AdvancED school accreditation standards predictors of success on student achievement through standardized test performance in the area of reading? Are the AdvancED school accreditation standards predictors of success on student achievement through standardized test performance in the area of mathematics?;Based on the findings, this study determined schools of poverty were being rated significantly lower than schools of poverty in the following standards: governance and leadership, teaching and learning, resources and support programs, as well as stakeholder communication and relationships. Schools of poverty that enter the accreditation process still lag behind accredited schools of affluence, but a significant difference was determined when the accredited schools of poverty were compared to non-accredited schools of poverty.;When school effectiveness accreditation scores for each standard were examined a relationship was significant between how affluent schools were scored in documenting and using results, as well as stakeholder communication and relationships and their success on standardized tests in reading and mathematics. When school effectiveness accreditation scores for each standard within schools of poverty a significant relationship between the following standards was determined in regard to standardized testing for reading and mathematics: teaching and learning, documenting and using results, as well as resources and support programs. A negative relationship was determined for schools of poverty between the test results in reading and mathematics and their rating on the commitment to continuous improvement standard.