Cobb’s district score of 79.7 on the 2015 College and Career Ready Performance Index (CCRPI) exceeded the state average for the fourth straight year. Scores for Cobb County schools on the 2015 CCRPI exceeded average scores for Georgia schools at all three levels: elementary, middle and high. The CCRPI measures the academic achievement and progress of individual schools, school systems, and the state itself on a 100-point scale. The CCRPI represents Georgia’s accountability system. The Georgia Department of Education (GaDOE) significantly modified the CCRPI for 2015 by including the new Georgia Milestones Assessments and altering the weight of individual components of the index.

Table 1 (below) shows components of the 2015 CCRPI score at each school level for Cobb schools, and a comparison of Cobb’s overall CCRPI score for each level compared to Georgia’s overall score for each level.

Level Achievement
(max = 50)
(max = 40)
Gap Points
(max = 10)
(max = 10)

Elementary 32.3 34.1 6.7 4.2 77.3 76.0
Middle 33.6 35.9 6.7 2.8 79.0 71.2
High 37.0 36.9 6.7 3.3 83.9 75.8

Sope Creek (95.5) and Mount Bethel (94.2) had the highest CCRPI scores among Cobb’s elementary schools. Six other elementary schools exceeded 90.0: East Side, Ford, Garrison Mill, Kemp, Murdock, and Timber Ridge. Thirty-one Cobb elementary schools exceeded the state elementary average of 76.0. Because of the modifications to the CCRPI, the GaDOE did not issue scores for primary schools this year (Kennesaw, Riverside Primary, and McCall Primary).

Dodgen (98.4) and Hightower Trail (96.5) were the top scoring middle schools in Cobb. Dickerson and Mabry also exceeded 90.0. Nineteen of Cobb’s twenty-five middle schools exceeded the middle school state average of 71.2. Lassiter (98.7) and Walton (96.8) led Cobb’s high schools. Five other high schools also exceeded 90.0: Allatoona, Harrison, Hillgrove, Kennesaw Mountain, and Pope. Twelve Cobb high schools exceeded the high school state average of 75.8.

According to Cobb Superintendent Chris Ragsdale, “As a district, we focus on equipping our teachers with the tools necessary to meet the individual needs of our students. Our district CCRPI scores have exceeded the state average for the past four years due to the focus and commendable work of our teachers.” Walton High School earned the most points in the district for the achievement category, much of which is based on the Georgia Milestones. According to Walton Principal Judy McNeill, “Walton’s high achievement scores are a result of the rigorous curriculum delivered by our teachers. Our students and their parents have high expectations for academic success, and those expectations propel our students to perform well on the state assessments.”

Description of CCRPI

The base CCRPI score is calculated from three separately weighted components: achievement, progress, and achievement gap. Achievement points account for 50 percent of the overall CCRPI score. Achievement points are distributed among content mastery as measured by the Georgia Milestones tests, post-readiness (which uses various measures of college and career readiness), and high school graduation rate or a predictor of high school graduation. Progress points account for 40 percent of the overall school score and measure the amount that students grow based on their performance on state assessments from year to year. The student growth measure determines how much students in a school or district are growing compared to academically-similar students from across Georgia. Achievement gap points account for 10 percent of the overall CCRPI score. These points measure the difference between the performance of the lowest 25 percent of students in a school or district compared to the performance of all students in Georgia. Schools may also receive up to 10 challenge points or bonus points in addition to the 100 CCRPI points based on the performance of certain subgroups of students within the school and by demonstrating excellence in specified areas like innovative practices and STEM certification.

More Information

The GaDOE uses the CCRPI to hold schools accountable for results, to provide more prescriptive state support, and to reward schools for high performance and progress. Detailed information about the CCRPI is available from the GaDOE website ( The available information includes full reports for all schools and districts in Georgia.


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