Pursuant to state statute, the State Board of Education is required to adopt a statewide assessment in English language arts (ELA), mathematics and science. The Board is also required to adopt a Menu of Assessments for grades 9-12. Local education agencies may select an assessment from the Menu to administer in addition to the statewide assessment. Assessments on the Menu must: 1) be high quality; 2) meet or exceed the level of rigor of the state academic standards; and 3) be able to be scaled for accountability purposes (A.R.S.15-741.02).
More information can be found on the Arizona Department of Education's website.