This report contains tables of District summary data for the achievement tests administered in the spring of the 1982-83 school year to all Austin Independent School District students in grades K-12. The Iowa Tests of Basic Skills (ITBS) were administered in grades K-8, the Sequential Tests of Educational Progress (STEP) were administered in grades 9-12, and the Texas Assessment of Basic Skills (TABS) was administered in grades 3, 5, and 9-12. Results are reported by ethnicity as well as the total group for ITBS median percentiles and grade equivalents, and STEP median percentiles based on 1970 norms and 1978 norms. District characteristics accompany these results to describe the general context in which these achievement scores were collected. The summary scores for students who were tested in each of the past two, three, and four years are also presented. Percentile rank scores are based upon a nationwide sample of students completing the ITBS or STEP prior to their publication. Students in grades 9-12 can be compared to two nationwide reference groups (1970 and 1978 norm groups). Criteria for student score inclusion or exclusion are explained. Two anomalies in data analysis and sounding are noted. (BS)