This report provides an overview of the Oklahoma School Testing Program (OSTP) and summarizes students' average writing assessment scores from 1987 through 1992. Oklahoma has completed its 6th year of administering a state legislature mandated test to 10th graders and its 5th year of testing 7th graders. The Stanford Writing Assessment Program was adopted in 1992. Over 38,500 7th graders and over 32,600 10th graders were tested. Student papers were hand scored through holistic and analytic scoring techniques designed to measure different aspects of composition skills. Comparisons of the scores of Oklahoma students with the national average during the years such tests have been administered indicates continued above-average performance for both grades. With the change to the Stanford tests in 1992, 7th graders showed an apparent increase in score differential, while 10th graders showed an apparent decrease. The shift to the new test may account for differences in comparisons with national norms for 1992 and previous years. Information for understanding and using the test results is presented. Seven tables and eight figures present test results and trend information. Five appendixes contain an additional eight tables that give information about student performance, scores under the normal curve, and averages at the district level for both grades. (SLD)