Testing is administered yearly in first through twelfth grade, utilizing the Stanford Achievement Test and the Otis Lennon School Ability Test and either the ACT or SAT exam for eleventh and twelfth graders. Generally, sixteen million students take the Stanford Achievement Test across the country each year. C.C.A. Students consistently score well above the national and district norms in complete batteries. Class averages in some subtests reach as high as the 90th percentile.