This is the 20th year of statewide student testing under the Arizona Student Achievement Program. To fulfill the requirements of the Arizona Revised Statutes, a nationally standardized norm-referenced achievement test in the subjects of reading, language arts, and mathematics was adopted and implemented in Arizona schools. For the 1999-2000 school year, students in grades 2 through 11 were tested using the Stanford Achievement Test, Ninth Edition (Stanford9). This test was administered statewide to 619,280 Arizona students in grades 2-11 during the Spring of 2000. Three subtests in the target academic content areas were administered to all students. This "State Report Appendix" provides school, district, county, and state level scores representing typical student performance on the 1999-2000 administration of the Stanford 9. Sections A, B, and C of the report provide separate scores, one for each subject area. The three scores cannot be averaged to provide one overall score for a school, school district, county, or the state. The scores are called "individual percentile rank scores," and they indicate the estimated percentage of students nationally scoring equal to or lower than the average performance indicated for a school, district, county, or state. One lengthy table is provided for each of the subject areas. (SLD)