According to the districts, Cobb’s composite score was 22.1, down from 22.2 in 2012, and Marietta’s was 21.3 up from 21.0 last year. The state average for this year is 20.7, and the national average is 20.9.
In Cobb, 3,651 students, or 80 more than in 2012, were tested and at Marietta High School 170 students took the exam, 11 fewer students than in 2012.
The ACT is a curriculum-based achievement test designed to measure college readiness and preparation. The ACT includes exams in English, reading, math and science and an optional writing portion. Scoring on the exam is based on a scale of zero to 36.
Specific school scores for Cobb’s 16 high schools have not been released but some preliminary data shows that four high schools had average scores higher than 24.0 points: Walton, 25.8; Pope, 25.2; Wheeler, 24.6; and Lassiter, 24.3.
These four high schools also scored higher than the national average, in addition to five others: Harrison, 23.1; Kennesaw Mountain, 23.1; Allatoona, 22.1; and Kell, 22.0; and Hillgrove, 21.4.
On the writing portion of the test, Cobb test takers averaged 21.8 compared to the state average of 20.4.
Marietta High test takers continued the trend of increasing ACT scores year after year.
“I am very pleased that Marietta High School students outperformed the state and nation this year,” said Marietta Superintendent Emily Lembeck.
Approximately 69 percent of Marietta seniors scored 18 or higher on the English test, 41 percent scored 22 or higher on the algebra test, 53 percent scored 22 or higher on the social science test, and 42 percent scored 23 or higher on the biology test.