During the 1982-83 school year, the California Achievement Test (CAT) was administered to students attending Montgomery County (Maryland) Public Schools (MCPS) in grades 3,5,8 and 11. This report describes and displays the county-wide and school test results which are further broken down by racial/ethnic group and sex. An analysis of the data found that MCPS student performance had improved slightly (1 percent) from the previous year. Of the students tested, 78 percent tested at or above the national norm average. Similarly, the average scores for each racial/ethnic group in MCPS were at or above the national norm average except for Black students in grade 11. Performance of White students in MCPS was higher than that of MCPS Hispanic or Black students. Asian students scored slightly higher than White students in all grades. However, when compared to their counterparts nationally, MCPS Hispanic and Black students performed better than White students. A breakdown by sex found that females scored slightly higher than males on the total test in all grades tested. (EGS)