The research sought to objectively evaluate the effectiveness of Texas standard AP open-enrollment charter school campuses and to discover independent variables that may be utilized to predict effective charter school campuses. The literature review was designed to enhance the current understanding of charter schools and therefore facilitate a more effective evaluation of them. A basic knowledge and understanding of the origins, characteristics and purposes of charters allow for a more objective analysis. The literature review covered the history of charters including their founders, characteristics, and growth patterns. The data items used in the analyses were downloaded from the 2007-2008 Academic Excellence Indicator System (AEIS), which contains a variety of data from all Texas public schools. Multiple statistical analyses were utilized including chi-square, ANOVA, multiple regression and discriminate analysis. In order to evaluate Texas standard AP open enrollment charter campuses, their accountability ratings were compared with those of standard AP traditional public school campuses. The research evaluated twelve independent variables for charter schools to determine their relationship to accountability ratings, thereby providing charter operators indicators or predictors of accountability ratings to facilitate better academic quality. By analyzing the same variables for traditional public schools as charter schools, a baseline model was developed to compare the similarities and differences with the results of the charter school analyses.