August 25, 2011—Klein ISD students continue to score above the state and national average on the ACT. KISD students who took the exam from the Class of 2011 averaged a score of 22.4, while the state and national averages were 20.8 and 21.1, respectively. The highest possible ACT score is 36, however, less than one-tenth of one percent of 2011 graduates earned a perfect score nationwide. The ACT is a universally accepted college admission exam that is curriculum-based. Questions on the ACT are directly related to what students have learned in high school courses in English, math, and science.